CN103877670B - Negative pressure wound therapy device - Google Patents
Negative pressure wound therapy device Download PDFInfo
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- CN103877670B CN103877670B CN201410072932.7A CN201410072932A CN103877670B CN 103877670 B CN103877670 B CN 103877670B CN 201410072932 A CN201410072932 A CN 201410072932A CN 103877670 B CN103877670 B CN 103877670B
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- negative pressure
- gas
- therapy device
- wound therapy
- pressure source
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Abstract
The present invention provides a kind of negative pressure wound therapy device, and it includes housing, the controller that is arranged in housing, negative pressure source, liquid-collecting box and the wound external member that is connected with liquid-collecting box. Negative pressure wound therapy device provided by the invention also includes connecting the pneumatic filter that described negative pressure source institute expellant gas is purified with described negative pressure source gas circuit. Negative pressure wound therapy device provided by the invention has the pneumatic filter that negative pressure source expellant gas is filtered, and therefore the gas produced in work can be processed by described negative pressure wound therapy device, eliminates abnormal flavour, facilitates user to operate with.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of negative pressure wound therapy device that wound is treated.
Background technology
Negative pressure wound therapy device, the U.S. is called NegativePressureWoundTherapyDevices, referred to as NPWT. Its principle is by wound being applied negative pressure, promoting the healing of wound. According to U.S.'s Clinical practice experience over nearly 10 years, the treatment of wounds of various acute and chronics is had good healing effect by this equipment.
Refer to Fig. 1, usually, negative pressure wound therapy device 10 includes negative pressure and produces controller 9, wound external member 8 and for collecting the container (being liquid-collecting bottle 5 referred to here as this container) of wound 1 place transudate. Wherein, wound external member 8 is used for closing wound, manufactures negative pressure space. Wound external member 8 includes wound implant 2 and vascular closure thing. Negative pressure produces controller 9 for createing required negative wound pressure, and negative pressure produces controller 9 and includes negative pressure source 6 and controller 7. When this negative pressure wound therapy device 10 uses, human body wound 1 is covered by wound implant 2. Being provided above vascular closure thing in wound implant 2, vascular closure thing herein is pad pasting 3. Wound 1 is closed by pad pasting 3. Wound filler 2 is connected on liquid-collecting bottle 5 by connecting tube 4, thus being directed in liquid-collecting bottle 5 by the transudate from wound 1, collects the transudate from wound by liquid-collecting bottle 5. The other end of liquid-collecting bottle 5 is connected with the negative pressure source 6 of adjustable air flow amount by another one connecting tube 4, the negative pressure source 6 of adjustable air flow amount provide negative pressure, flow to liquid-collecting bottle 5 for wound fluid and provide power. The negative pressure source 6 of adjustable air flow amount is connected to a controller 7, controller 7 negative pressure source 6 of adjustable air flow amount is carried out control, thus controlling the switch of negative pressure source 6 and the size etc. of air-flow.
Generally, for the convenience carried and use, the negative pressure source 6 of negative pressure wound therapy device 10, controller 7 and liquid-collecting bottle 5 are generally arranged in a housing. When patient wound is treated by negative pressure wound therapy device 10, the liquid can located by negative pressure-pumping patient wound, the liquid of wound can produce niff, and these abnormal smells from the patients can be entered in the housing of this negative pressure wound therapy device 10 by pipeline and interface or be exhausted directly in air. When gas enters in housing, abnormal smells from the patient not easily leaves, and makes troubles to subsequent use. Simultaneously as may with antibacterial, abnormal flavour or other impurity in gas, access arrangement or be exhausted directly to the gas in air and may bring potential safety hazard to patient and user.
Summary of the invention
Based on this, it is necessary to provide a kind of negative pressure wound therapy device and method for gas purification thereof, the gas produced in work can be processed by this negative pressure wound therapy device, facilitates user to operate with.
A kind of negative pressure wound therapy device, including housing, the controller being arranged in housing and negative pressure source, liquid accumulating box liquid-collecting box and the wound external member that is connected with liquid accumulating box liquid-collecting box, it is characterized in that, described negative pressure wound therapy device also includes the pneumatic filter connecting with described negative pressure source gas circuit and described negative pressure source institute expellant gas being purified; Described pneumatic filter is activated carbon adsorption formula pneumatic filter;
Described pneumatic filter includes filter body, be opened on described filter body the gas purification storehouse being connected with outside air, the activated carbon that is arranged on impurity in the internal adsorption gas of described gas purification storehouse and the negative pressure source interface connected with described gas purification storehouse gas circuit;
It is provided with gas filtration passage in described gas purification storehouse, described activated carbon is arranged in described gas filtration passage, after described negative pressure source interface, reach described gas filtration passage from described negative pressure source gas out, and arrive described gas purification storehouse through described gas filtration passage;
The quantity of described gas filtration passage is multiple.
Wherein in an embodiment, described filter body is fixing on the housing; Or, described filter body is a part for described housing.
Wherein in an embodiment, described filter body is provided with the draw-in groove for housing power line, and described draw-in groove connects with described air cleaning storehouse gas circuit.
Wherein in an embodiment, described pneumatic filter also includes covering the cover plate on described gas purification storehouse, and described cover plate is provided with the venthole being connected in described gas purification storehouse with outside air.
Wherein in an embodiment, described negative pressure wound therapy device also includes the liquid-collecting box connected with described negative pressure source gas circuit.
Above-mentioned negative pressure wound therapy device and have the pneumatic filter that negative pressure source expellant gas is filtered, therefore the gas produced in work can be processed by this negative pressure wound therapy device, eliminates abnormal flavour, facilitates user to operate with.
Accompanying drawing explanation
Fig. 1 is conventional negative pressure wound therapy device schematic diagram;
Fig. 2 is the Facad structure schematic diagram of the negative pressure wound therapy device of the present invention;
Fig. 3 is the structure schematic diagram (front herein with the back side merely to illustrate that two faces are relative relations) of negative pressure wound therapy device shown in Fig. 2;
Fig. 4 is the covering plate structure schematic diagram of negative pressure wound therapy device shown in Fig. 2.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail. Elaborate a lot of detail in the following description so that fully understanding the present invention. But the present invention can implement being much different from alternate manner described here, and those skilled in the art can do similar improvement when without prejudice to intension of the present invention, therefore the present invention is by the restriction of following public specific embodiment.
It should be noted that be referred to as " being fixed on " another element when element, it can directly on another element or can also there is element placed in the middle. When an element is considered as " connection " another element, it can be directly to another element or may be simultaneously present centering elements.
Unless otherwise defined, all of technology used herein is identical with the implication that the those skilled in the art belonging to the present invention are generally understood that with scientific terminology. The term used in the description of the invention herein is intended merely to the purpose describing specific embodiment, it is not intended that in the restriction present invention. Term as used herein " and/or " include the arbitrary and all of combination of one or more relevant Listed Items.
Refer to Fig. 2, one embodiment of the present of invention provides a kind of negative pressure wound therapy device, and this negative pressure wound therapy device includes housing, the controller, negative pressure source, liquid-collecting box, the wound external member being connected with liquid-collecting box that are arranged in housing and connect the pneumatic filter 100 that negative pressure source institute expellant gas is purified with negative pressure source gas circuit. Fig. 2 only depicts pneumatic filter 100, controller, negative pressure source, liquid-collecting box, wound external member and the conventional controller of negative pressure wound therapy device, negative pressure source, liquid-collecting box, wound external member are identical, controller, negative pressure source herein are arranged in the housing, liquid-collecting box is fixed on housing, wound external member is connected with housing, and these parts all illustrate. Owing to being originally that the negative pressure wound therapy device in example has purification air, remove the effect of abnormal flavour and antibacterial, thus facilitating user to operate with.
In the present embodiment, the pneumatic filter 100 of negative pressure wound therapy device is activated carbon adsorption formula pneumatic filter. Certainly, the pneumatic filter 100 of negative pressure wound therapy device can also be electrostatic adsorption type, filter fiber filtering type or filtering solution filtering type pneumatic filter, it is also possible to for activated carbon adsorption formula pneumatic filter. When for filtering solution filtering type pneumatic filter, the filtration of its Air purification easily can select the chemical solution that the scent of contained in the gas of the wound being drawn into or toxicant have conversion or Absorption, thus reaching to purify the purpose of gas. It will be appreciated by persons skilled in the art that negative pressure wound therapy device can also adopt above-mentioned different types of pneumatic filter to be mutually combined together, thus reaching to strengthen the purpose of air purification effect. It is for instance possible to use filtering solution filtering type pneumatic filter and the combined mode of activated carbon adsorption formula pneumatic filter.
Please also refer to Fig. 2 and Fig. 3, pneumatic filter includes filter body 110, be opened on filter body 110 the gas purification storehouse 120 being connected with outside air, the activated carbon that is arranged on impurity in the internal adsorption gas of gas purification storehouse 120 and the negative pressure source interface 140 connected with gas purification storehouse 120 gas circuit the gas outlet of negative pressure source.
Wherein, filter body 110 can be fixed on housing, it is also possible to for a part for housing. In order to make housing more smooth, when adopting filter body 110 to be fixed on the form on housing, can digging out the accommodation space for housing filter body 110 on housing, filter body 110 can adopt the modes such as engaging or screw locking to inlay in the accommodation space being fixed on housing. Filter body 110 herein is a part for housing.
It addition, filter body 110 is provided with the draw-in groove 170 for housing power line. Draw-in groove 170 is except having the effect of accommodating power line, it is also possible to is designed to the form being connected with gas purification storehouse 120, so can distribute from draw-in groove 170 through gas purification storehouse 120 purified gas. This draw-in groove 170 also just has the effect as gas emission path.
In the present embodiment, in the gas purification storehouse 120 of negative pressure wound therapy device, it is provided with gas filtration passage 130. It is provided with activated carbon in gas filtration passage 130. After negative pressure source interface 140, reach gas filtration passage 130 from negative pressure source gas out, and arrive in gas purification storehouse 120 through gas filtration passage 130. Activated carbon has absorption and the effect filtered, and the gas through gas filtration passage 130 will be purified, thus removing abnormal flavour and antibacterial etc.In the present embodiment, the quantity of the gas filtration passage 130 of negative pressure wound therapy device is multiple. These gas filtration passages 130 all connect with negative pressure source interface 140 phase gas circuit. Gas reaches after negative pressure source interface 140 then through arriving gas purification storehouse 120 after the filtration of gas filtration passage 130, is finally discharged in outside air again.
It addition, in the present embodiment, these gas filtration passages 130 be parallel with one another together. It is to say, one end of each gas filtration passage 130 is all joined directly together with negative pressure source interface 140, the other end is all joined directly together with gas purification storehouse 120. In order to make gas purifying effect better, it would however also be possible to employ the mode that these gas filtration passages 130 are cascaded. That is, by end to end for these gas filtration passages 130, two the gas filtration passages 130 being in head and the tail position are joined directly together with negative pressure source interface 140 and gas cleaning position 120 respectively. The gas so come in from negative pressure source interface 140 can through multistage filtering, thus reaching to promote the effect of air purification effect.
Refer to Fig. 3, the back side of pneumatic filter 100 can be provided with multiple ventilation interface 180. In the present embodiment, the quantity of these ventilation interfaces 180 is four. These four ventilation interfaces 180 are connected with check valve, negative pressure source, liquid-collecting box and sensor respectively. Check valve, negative pressure source, liquid-collecting box are identical with conventional negative pressure wound therapy device with mutual annexation with sensor role in this negative pressure wound therapy device, repeat no more herein.
Refer to Fig. 4, pneumatic filter 100 also includes the cover plate 150 covering on gas purification storehouse 120. Cover plate 150 is provided with the venthole 160 being connected in gas purification storehouse 120 with outside air. Cover plate can adopt and be fixed or mode appended by screw is fixed on the filter body 110 of pneumatic filter 100. It addition, cover plate 150 can also be not provided with venthole 160, now, can discharge via the draw-in groove 170 being used for housing power line through purified gas.
In use, wound external member will cover wound to negative pressure wound therapy device, and then controller provides, by controlling negative pressure source, the negative pressure being used for suction wound transudate. Meanwhile, the gas of wound and liquid can be taken away by negative pressure wound therapy device in the course of the work, and wherein liquid will enter liquid-collecting box, and gas will be evacuated to negative pressure source interface 140 by negative pressure source. Then, gas will arrive gas filtration passage 130, and the filtration through gas filtration passage 130 arrives gas purification storehouse 120. Last via in venthole 160 exhaust gas purifying storehouse 120 to the outside air on draw-in groove 170 or cover plate 150. Owing to the gas in the be discharged to outside air of negative pressure wound therapy device have passed through the adsorption cleaning effect of the activated carbon in gas filtration passage 130, so the gas with abnormal flavour, antibacterial produced by wound obtains purification, abnormal flavour and antibacterial obtains removal. Staff and patient are not easily susceptible to the puzzlement with gas with foreign flavor and infringement when using this negative pressure wound therapy device, thus bringing convenience to user and patient. This negative pressure wound therapy device also just has elimination abnormal flavour, advantage easy to use.
An alternative embodiment of the invention provides the method for gas purification of a kind of negative pressure wound therapy device. The gas produced in negative pressure wound therapy device work process can be purified by the method for gas purification of negative pressure wound therapy device. It comprises the steps:
Step one: the gas with transudate abnormal smells from the patient is discharged by negative pressure source.Gas herein, from the wound of patient, has abnormal flavour and impurity etc. in gas.
Step 2: gas is circulated to gas cleaning plant.
Step 3: described gas is carried out purified treatment by described gas cleaning plant. Gas is carried out gas cleaning plant purified treatment particularly as follows: described gas is carried out purified treatment by Electrostatic Absorption by gas cleaning plant; Or, described gas is carried out purified treatment by fiber filter by gas cleaning plant; Or, gas cleaning plant is filtered by filtering solution and described gas is carried out purified treatment; Or, described gas is carried out purified treatment by activated carbon adsorption formula by gas cleaning plant. It is adopt activated carbon adsorption method that negative pressure source expellant gas is carried out gas purification herein.
By above-mentioned steps, the negative pressure source expellant gas of negative pressure wound therapy device can be carried out purified treatment by the method for gas purification of negative pressure wound therapy device, thus the abnormal flavour eliminated in negative pressure source expellant gas, facilitates user to operate with.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention. It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention. Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (5)
1. a negative pressure wound therapy device, including housing, the controller being arranged in housing and negative pressure source, it is characterized in that, described negative pressure wound therapy device also includes the pneumatic filter connecting with described negative pressure source gas circuit and described negative pressure source expellant gas being purified, and described pneumatic filter is activated carbon adsorption formula pneumatic filter;
Described pneumatic filter includes filter body, be opened on described filter body the gas purification storehouse being connected with outside air, the activated carbon that is arranged on impurity in the internal adsorption gas of described gas purification storehouse and the negative pressure source interface connected with described gas purification storehouse gas circuit;
It is provided with gas filtration passage in described gas purification storehouse, described activated carbon is arranged in described gas filtration passage, after described negative pressure source interface, reach described gas filtration passage from described negative pressure source gas out, and arrive described gas purification storehouse through described gas filtration passage;
The quantity of described gas filtration passage is multiple.
2. negative pressure wound therapy device according to claim 1, it is characterised in that described filter body is fixing on the housing; Or, described filter body is a part for described housing.
3. negative pressure wound therapy device according to claim 1, it is characterised in that described filter body is provided with the draw-in groove for housing power line, and described draw-in groove connects with described air cleaning storehouse gas circuit.
4. the negative pressure wound therapy device according to any claim in claims 1 to 3, it is characterized in that, described pneumatic filter also includes covering the cover plate on described gas purification storehouse, and described cover plate is provided with the venthole being connected in described gas purification storehouse with outside air.
5. the negative pressure wound therapy device according to any claim in claims 1 to 3, it is characterised in that described negative pressure wound therapy device also includes the liquid-collecting box connected with described negative pressure source gas circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410072932.7A CN103877670B (en) | 2014-02-28 | 2014-02-28 | Negative pressure wound therapy device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410072932.7A CN103877670B (en) | 2014-02-28 | 2014-02-28 | Negative pressure wound therapy device |
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| CN103877670A CN103877670A (en) | 2014-06-25 |
| CN103877670B true CN103877670B (en) | 2016-06-15 |
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| CN201410072932.7A Active CN103877670B (en) | 2014-02-28 | 2014-02-28 | Negative pressure wound therapy device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1571682A (en) * | 2001-08-24 | 2005-01-26 | Kci特许公司 | Vacuum assisted tissue treatment system |
| CN1732028A (en) * | 2002-10-28 | 2006-02-08 | 史密夫及内修公开有限公司 | Apparatus for aspirating, irrigating and cleansing wounds |
| CN201969175U (en) * | 2010-12-20 | 2011-09-14 | 惠州市华阳多媒体电子有限公司 | Negative-pressure wound therapy system capable of detecting smell of wound exudate |
| CN102781507A (en) * | 2010-03-12 | 2012-11-14 | 凯希特许有限公司 | Reduced-pressure dressing connection pads, systems, and methods |
| CN203736689U (en) * | 2014-02-28 | 2014-07-30 | 昆山韦睿医疗科技有限公司 | Negative pressure wound treatment equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009089390A2 (en) * | 2008-01-08 | 2009-07-16 | Bluesky Medical Group Inc. | Sustained variable negative pressure wound treatment and method of controlling same |
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2014
- 2014-02-28 CN CN201410072932.7A patent/CN103877670B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1571682A (en) * | 2001-08-24 | 2005-01-26 | Kci特许公司 | Vacuum assisted tissue treatment system |
| CN1732028A (en) * | 2002-10-28 | 2006-02-08 | 史密夫及内修公开有限公司 | Apparatus for aspirating, irrigating and cleansing wounds |
| CN102781507A (en) * | 2010-03-12 | 2012-11-14 | 凯希特许有限公司 | Reduced-pressure dressing connection pads, systems, and methods |
| CN201969175U (en) * | 2010-12-20 | 2011-09-14 | 惠州市华阳多媒体电子有限公司 | Negative-pressure wound therapy system capable of detecting smell of wound exudate |
| CN203736689U (en) * | 2014-02-28 | 2014-07-30 | 昆山韦睿医疗科技有限公司 | Negative pressure wound treatment equipment |
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| CN103877670A (en) | 2014-06-25 |
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