CN202822443U - Closed-type negative pressure drainage device - Google Patents
Closed-type negative pressure drainage device Download PDFInfo
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- CN202822443U CN202822443U CN 201220200281 CN201220200281U CN202822443U CN 202822443 U CN202822443 U CN 202822443U CN 201220200281 CN201220200281 CN 201220200281 CN 201220200281 U CN201220200281 U CN 201220200281U CN 202822443 U CN202822443 U CN 202822443U
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- negative pressure
- drainage device
- closed
- pressure drainage
- dressing
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Abstract
The utility model relates to medical instruments, in particular to a closed-type negative pressure drainage device. The closed-type negative pressure drainage device comprises a bacterial cellulose composite chitosan fiber wet dressing (1), a gluing semi-transparent film (2), a negative pressure plate (3) and a drainage pipe (4), wherein the drainage pipe (4) is connected with a negative pressure device. The closed-type negative pressure drainage device is capable of being cut and combined randomly according to shapes and portions of wound surfaces. The closed-type negative pressure drainage device is convenient to use and has an antibacterial effect, a moisture keeping effect and a negative pressure drainage effect. The closed-type negative pressure drainage device can be applied to cure a chronic non-curing wound, an acute stress intractable wound, burn and large-area coloboma and /or infection of soft tissues.
Description
Technical field
The present invention relates to the bio-medical technical field, particularly a kind of closed negative pressure drainage device.
Background technology
Wound surface vacuum-assisted (vacuum sealing drainage VSD) is a kind of Wound treating new technique that grows up this year.Its utilizes can paste semipermeable membrane and makes the open wound sealing, uses negtive-pressure implement to produce certain negative pressure, acts on wound surface after the debridement by porous dressing, absorbs the wound transudate and flows out through drainage tube.The people such as doctor Fleischmann combined traditional negative pressure drainage and present impermeable plastic wound dressing in 1992, were applied to treat the open fracture wound surface and achieved success.The researchs such as Argenta in 1997 and Morykwas find that VSD can promote the wound surface local blood circulation, promote granulation tissue production, reduce tissue bacterial content, improve the survival rate of flap or Free Skin Graft.Along with application and the development of VSD technology, increasing research and clinical report have confirmed that the VSD technology has preferably curative effect treat that all kinds of acute and chronic wounds comprise acute soft tissue damaged, all kinds of chronic (pressure, vascular, diabetic) ulcer, surgical incision splits or infection etc.This therapy can be accelerated the blood circulation of wound site, significantly promotes new vessels to enter wound surface, stimulates the growth of granulation tissue, fully drain alleviates edema, reduces and pollutes, bacteria growing inhibiting can directly be accelerated wound healing, or creates conditions for surgical repair.The VSD technology has obtained rapid popularization in developed countries such as America and Europes at present, is described as the revolutionary technology of current treatment wound, is Wound care field new milestone.And each medical fields such as wound, burn, shaping have been widely used in.The states such as Germany in 2003, Austria include this technology in wound treatment guide.Over past ten years, China begins to introduce this technology, and is accumulating a large amount of experiences aspect basic research and the clinical practice.
Vacuum-assisted is that traditional negative pressure drainage method is combined with closure dressing, this technology adopts the foam porous dressing with drainage tube to cover or fill wound surface, with semipermeable membrane dressing is sealed again, make whole system become confined space, at last drainage tube is connected on the negtive-pressure implement, comes wound healing by the control negative pressure.Now VSD technology basic configuration comprises negative pressure source (comprising medical suction machine, negative pressure bottle-guiding), and drainage tube, can be pasted sealing with semipermeable membrane, union joint, drainage container etc. at foam porous dressing.Wherein foam porous dressing plays key effect as the intermediary between negative-pressure drainage tube and wound surface in whole closed negative pressure drainage device.It requires dressing inside to have the porous network that is interconnected, to guarantee that organize transudate and metabolite that vacuum suction goes out can be by normal sucking-offs; Simultaneously dressing and the direct contact need of wound have good biocompatibility, can promote wound healing.Dressing materials commonly used is polyvinyl alcohol at present, and the polyvinyl alcohol cost is higher, makes the loose structure complex process, main dependence on import.Cause at this type of Therapeutic Method cost of China very highly, increased heavy financial burden to the patient.In addition, the closed negative pressure drainage device of present clinical employing is generally medical institutions and adopts the accessory self-control of different vendor to form, and makes whole system unstable, and the safety in the illegal assurance use procedure.And the closed negative pressure drainage device of import manufacturers produce mostly is fixing specifications and models, and the needs and the price that are difficult to satisfy different wounds position are very expensive.Therefore, develop a kind of low cost and the substitute products that conveniently are used in combination are task of top priority.
The utility model content
The purpose of this invention is to provide a kind of closed negative pressure drainage device, relate to a kind of medical apparatus and instruments.Whole device can cut randomly according to the shape of wound surface, make up, and is easy to use.
A kind of closed negative pressure drainage device comprises being positioned at undermost Bacterial cellulose recombination chitosan fiber moist dressing that covering can be pasted semipermeable membrane on it, and the drainage tube of negative pressure dish and connection negtive-pressure implement; The bottom surface concentric discs of wherein said negative pressure dish is at Bacterial cellulose recombination chitosan fiber moist dressing and can paste between the semipermeable membrane.Described Bacterial cellulose recombination chitosan fiber moist dressing is to adopt method of electrostatic spinning that chitosan is compounded in the Bacterial cellulose surface to obtain.During use, the Bacterial cellulose combine dressing is covered or be filled in wound, the negative pressure dish is placed in the centre position above dressing, can paste semipermeable membrane and pass the negative pressure dish and cover the dressing top, forms closed system.At last drainage tube one end is connected the negative pressure dish, an end connects negtive-pressure implement (negative pressure process units).
The negative pressure drainage dressing matrix that this utility model adopts is Bacterial cellulose.Bacterial cellulose is as a kind of good biomaterial, has its unique physics, chemical property: BC has natural three-dimensional manometer network structure; High-tensile and elastic modelling quantity; High-hydrophilic, good ventilative, suction, water permeability, outstanding retentiveness and high wet strength.In addition, studies show that in a large number that Bacterial cellulose has in the good body, biocompatibility in vitro and good biodegradability, this is so that Bacterial cellulose itself can be applied to the bio-medical field.The simple Bacterial cellulose of external employing has been reported as dressing, and industrialization is used for clinical.Based on above characteristics, the application utilizes the water absorbing properties of Bacterial cellulose itself with the matrix material of Bacterial cellulose as closed negative pressure drainage dressing, can be at the absorbing wound exudate and the metabolite that guarantee continuous and effective on the basis of biological safety.In addition, in the market negative pressure drainage dressing is dry state dressing substantially.The application is compounded in chitin fiber on the Bacterial cellulose.The chitosan material hydrophilicity is relatively poor, and with after Bacterial cellulose contacts, chitin fiber has destroyed the surface tension of Bacterial cellulose itself, is adding under the condition of negative pressure, makes transudate flow out the purpose that reach negative pressure drainage by chitin fiber smoothly.Simultaneously, chitosan has certain anti-microbial property, and good biocompatibility has been proved to be able to be applied to safely and effectively the wound dressing product.Adopt method of electrostatic spinning with Bacterial cellulose and the compound Bacterial cellulose recombination chitosan fiber moist dressing that obtains of chitin fiber, that this dressing has is antibiotic, moisturizing and negative pressure drainage multi-efficiency.Can be applied to cure the chronic sexual trauma of not healing, press the Acute Refractory wound, burn and large tracts of land soft tissue defects and/or infection.
As preferred technical scheme:
Described Bacterial cellulose recombination chitosan fiber moist dressing, it is characterized in that: adopt method of electrostatic spinning that chitin fiber is covered the Bacterial cellulose surface, obtaining the chitin fiber diameter is 200-700nm, the combine dressing water content is 30-90%, and thickness is the Bacterial cellulose recombination chitosan fiber moist dressing of 4.0-10.0 millimeter.The shape of Bacterial cellulose recombination chitosan fiber moist dressing and size are determined by shape, the position of wound surface.The circle, the square or rectangular that generally are shaped as rule of moist dressing also can be cut into the special shape similar to wound surface.The size of moist dressing is slightly larger than wound surface, generally keep moist dressing edge on the same cross section to the distance at wound surface edge between the 7.0-25.0 millimeter.
Aforesaid a kind of closed negative pressure drainage device, the described semipermeable membrane of pasting is for having the transparent membrane of one direction airing function.Its material can be one or more transparent membranes with one direction airing function that are mixed of polyurethane, polyacrylic acid or polyester.Its role is to seal Bacterial cellulose recombination chitosan fiber moist dressing and negative pressure dish, make whole device form closed environment, in order to produce negative pressure.The described semipermeable membrane thickness of pasting is the 0.5-2.0 millimeter; Shape is similar to Bacterial cellulose recombination chitosan fiber moist dressing; Size is slightly larger than moist dressing, generally keep can pasting on the same cross section semipermeable membrane edge to the distance at moist dressing edge between the 10.0-25.0 millimeter.
Aforesaid a kind of closed negative pressure drainage device, described negative pressure dish is comprised of hollow cone body medical silicone tube and disc porous medical resin.Wherein the bottom surface of hollow cone body is concentric discs; Be preferably internal diameter 8.0-14.0 millimeter, the concentric discs of external diameter 24.0-30.0 millimeter is inlayed circular porous medical resin in the concentric discs; One tubulose union joint is arranged at the cone top, union joint perpendicular to cone radially and be parallel to bottom surface, connector position has the inverted cone draw-in groove, makes things convenient for the drainage tube access and prevents that drainage tube from coming off in use.The negative pressure dish is the device that connects dressing, transmits negative pressure and wound fluid derivation dressing.In use, the quantity of negative pressure dish and position can be according to shape, the location positionings of concrete wound, to guarantee having uniform negative pressure, especially dressing and wound contact surface to keep lasting, uniform negative pressure in the whole negative pressure drainage device.In addition, the circular porous medical resin of inlaying in the concentric discs can guarantee that negative pressure evenly distributes, and prevents owing to Wound exudate, dressing precipitate too much stop up drainage tube.
Aforesaid a kind of closed negative pressure drainage device, described drainage tube are hollow pipe, and its material can be transparent medical silica-gel, politef, polyethylene or polrvinyl chloride.During use, drainage tube one end connects the union joint of negative pressure dish, and an end connects negtive-pressure implement.
Aforesaid a kind of closed negative pressure drainage device, the negtive-pressure implement that described drainage tube connects, the negative pressure that can produce should be-10 to-25kpa, and the negative pressure of the dressing of negative pressure drainage device inside and wound surface contact surface is-10 to-20kpa.The generation of negative pressure can reduce wound surface Surface Oxygen dividing potential drop, thereby makes a lot of antibacterials in the situation that the hypoxia multiplication rate reduces, and simultaneously, the partial vacuum effect that negative pressure produces is distorted bacteria cell wall and destroys, and causes the death of antibacterial.Negative pressure drainage can promote debridement and the healing of different wounds, negative pressure is too small can not to guarantee fully drawing of wound surface exudate, negative pressure is too high can to cause that again the local blood perfusion is bad, the research report is for fat and hypodermic wound surface, optimum pressure is-10kPa is to-11kPa, and for wound surface the best of muscle is-13kPa, generally negative pressure value is set as clinically-10kPa extremely-20kPa, can keep wound surface pressure like this, again the unlikely damage that causes local organization.Use suitable negative pressure and can promote drain, accelerate blood flow, and the size of different tissues application of negative pressure is not quite similar also.Therefore should regulate negative pressure value according to the practical situation of different tissues and negative pressure drainage device in actual use.Preferred negtive-pressure implement is to produce the negtive-pressure implement that continues with the negative pressure at intermittence.
Aforesaid a kind of closed negative pressure drainage device, during use Bacterial cellulose recombination chitosan fiber moist dressing is covered or is filled in wound surface, the negative pressure dish is placed in the centre position above dressing, can paste semipermeable membrane passes the negative pressure dish and covers the dressing top, semipermeable membrane contacts with the bottom surface concentric discs of negative pressure dish, forms closed system.At last drainage tube one end is connected the negative pressure dish, an end connects negtive-pressure implement (negative pressure process units).The length of the quantity of the size shape of Bacterial cellulose recombination chitosan fiber moist dressing, the size shape that can paste semipermeable membrane, negative pressure dish and placement location, drainage tube all can cut randomly, make up according to shape, the position of actual wound surface in the whole closed negative pressure drainage device.
Compared with prior art, the application's beneficial effect is:
The closed negative pressure drainage device anabolic process is simple, easy to operate and can cut randomly, make up according to shape, the position of wound surface.Can be applied to cure the chronic sexual trauma of not healing, press the Acute Refractory wound, burn and large tracts of land soft tissue defects and/or infection.
Description of drawings
Accompanying drawing is the structural representation of closed negative pressure drainage device of the present utility model;
Wherein, the 1st, Bacterial cellulose recombination chitosan fiber moist dressing; The 2nd, can paste semipermeable membrane; The 3rd, the negative pressure dish; The 4th, drainage tube.
The specific embodiment
Below in conjunction with the specific embodiment, further set forth the present invention.
As shown in Figure 1, it is the structural representation of a kind of closed negative pressure drainage device of the present utility model, comprise being positioned at undermost Bacterial cellulose recombination chitosan fiber moist dressing 1, covering can be pasted semipermeable membrane 2 on it, and the drainage tube 4 of negative pressure dish 3 and connection negtive-pressure implement; The bottom surface concentric discs of wherein said negative pressure dish 3 is at Bacterial cellulose recombination chitosan fiber moist dressing 1 and can paste between the semipermeable membrane 2.Described Bacterial cellulose recombination chitosan fiber moist dressing is to adopt method of electrostatic spinning that chitin fiber is covered the Bacterial cellulose surface, obtaining the chitin fiber diameter is 200-700nm, the combine dressing water content is 30-90%, and thickness is the 4.0-10.0 millimeter.
The shape of Bacterial cellulose recombination chitosan fiber moist dressing and size are determined by shape, the position of wound surface.The circle, the square or rectangular that generally are shaped as rule of moist dressing also can be cut into the special shape similar to wound surface.As being the square of 50.0 millimeters of the length of sides according to wound surface shape cutting moist dressing, then can pasting semipermeable membrane and can be the square of 65.0 millimeters of the length of sides.
During use Bacterial cellulose recombination chitosan fiber moist dressing is covered or is filled in wound surface, the negative pressure dish is placed in the centre position above dressing, the semipermeable membrane pasted of polyurethane preparation is passed the negative pressure dish and covers the dressing top, semipermeable membrane contacts with the bottom surface concentric discs of negative pressure dish, forms closed system.At last Medical silica gel drainage tube one end is connected the negative pressure dish, an end connects negtive-pressure implement.It is-25kpa that then the negative pressure of the dressing of negative pressure drainage device inside and wound surface contact surface is-20kpa that the negtive-pressure implement negative pressure is set.
Through evidence, adopt a kind of closed negative pressure drainage device of the present utility model to compare with the closed negative pressure drainage device of present clinical use, wound healing cycle shorten in average 2-3 days, the employed expense of this patent only for 10% of import dressing, greatly reduced patient's financial burden.And a kind of closed negative pressure drainage device of the present utility model can cut randomly, make up according to shape, the position of wound surface, and is easy to use, has antibiotic, moisturizing and negative pressure drainage multi-efficiency.The deficiencies in the prior art have been remedied.
Claims (6)
1. closed negative pressure drainage device, it is characterized in that: comprise being positioned at undermost Bacterial cellulose recombination chitosan fiber moist dressing (1), covering can be pasted semipermeable membrane (2) on it, and negative pressure dish (3) and connect the drainage tube (4) of negtive-pressure implement; The bottom surface concentric discs of wherein said negative pressure dish (3) is positioned at Bacterial cellulose recombination chitosan fiber moist dressing (1) and can pastes between the semipermeable membrane (2).
2. closed negative pressure drainage device according to claim 1, it is characterized in that: the thickness of described Bacterial cellulose recombination chitosan fiber moist dressing (1) is the 4.0-10.0 millimeter.
3. closed negative pressure drainage device according to claim 1 is characterized in that: the described semipermeable membrane (2) of pasting is for having the transparent membrane of one direction airing function, and thickness is the 0.5-2.0 millimeter.
4. closed negative pressure drainage device according to claim 1, it is characterized in that: described negative pressure dish is comprised of hollow cone body medical silicone tube and disc porous medical resin; Wherein the bottom surface of hollow cone body is concentric discs; Inlay circular porous medical resin in the concentric discs; One tubulose union joint is arranged at the cone top, union joint perpendicular to cone radially and be parallel to bottom surface, connector position has the inverted cone draw-in groove.
5. closed negative pressure drainage device according to claim 4, it is characterized in that: the bottom surface of described hollow cone body is the concentric discs of internal diameter 8.0-14.0 millimeter, external diameter 24.0-30.0 millimeter.
6. closed negative pressure drainage device according to claim 1, it is characterized in that: described drainage tube is hollow pipe; Its material is transparent medical silica-gel, politef, polyethylene or polrvinyl chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220200281 CN202822443U (en) | 2012-05-07 | 2012-05-07 | Closed-type negative pressure drainage device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220200281 CN202822443U (en) | 2012-05-07 | 2012-05-07 | Closed-type negative pressure drainage device |
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| CN202822443U true CN202822443U (en) | 2013-03-27 |
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| CN 201220200281 Expired - Lifetime CN202822443U (en) | 2012-05-07 | 2012-05-07 | Closed-type negative pressure drainage device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103405846A (en) * | 2013-07-17 | 2013-11-27 | 苏州爱得科技发展有限公司 | Medical pad pasting negative pressure drainage device |
| CN103495259A (en) * | 2013-09-18 | 2014-01-08 | 苏州爱得科技发展有限公司 | Double-hole type sucker negative pressure drainage device |
| CN103550817A (en) * | 2013-10-29 | 2014-02-05 | 上海昌颌医药科技有限公司 | Bacterial cellulose/chitosan composite sponge dressing and preparation method thereof |
| CN108079390A (en) * | 2017-12-28 | 2018-05-29 | 广州润虹医药科技股份有限公司 | A kind of negative pressure drainage device |
| CN110327144A (en) * | 2019-07-05 | 2019-10-15 | 昌乐县妇幼保健院 | A kind of wound healing care device for caesarean birth pregnant woman |
| CN113520720A (en) * | 2021-07-15 | 2021-10-22 | 上海美宝生命科技有限公司 | Closed negative pressure drainage dressing system |
-
2012
- 2012-05-07 CN CN 201220200281 patent/CN202822443U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103405846A (en) * | 2013-07-17 | 2013-11-27 | 苏州爱得科技发展有限公司 | Medical pad pasting negative pressure drainage device |
| CN103405846B (en) * | 2013-07-17 | 2016-02-03 | 苏州爱得科技发展有限公司 | Medical pad pasting negative pressure drainage device |
| CN103495259A (en) * | 2013-09-18 | 2014-01-08 | 苏州爱得科技发展有限公司 | Double-hole type sucker negative pressure drainage device |
| CN103495259B (en) * | 2013-09-18 | 2015-12-23 | 苏州爱得科技发展有限公司 | Double-hole type sucker negative pressure drainage device |
| CN103550817A (en) * | 2013-10-29 | 2014-02-05 | 上海昌颌医药科技有限公司 | Bacterial cellulose/chitosan composite sponge dressing and preparation method thereof |
| CN108079390A (en) * | 2017-12-28 | 2018-05-29 | 广州润虹医药科技股份有限公司 | A kind of negative pressure drainage device |
| CN110327144A (en) * | 2019-07-05 | 2019-10-15 | 昌乐县妇幼保健院 | A kind of wound healing care device for caesarean birth pregnant woman |
| CN110327144B (en) * | 2019-07-05 | 2021-07-23 | 高慧芳 | A incision healing nursing device for caesarean birth pregnant woman |
| CN113520720A (en) * | 2021-07-15 | 2021-10-22 | 上海美宝生命科技有限公司 | Closed negative pressure drainage dressing system |
| CN113520720B (en) * | 2021-07-15 | 2022-09-30 | 上海美宝生命科技有限公司 | Closed negative pressure drainage dressing system |
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| CX01 | Expiry of patent term |
Granted publication date: 20130327 |