CN103877670A - Negative pressure wound therapy device and gas purification method thereof - Google Patents
Negative pressure wound therapy device and gas purification method thereof Download PDFInfo
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- CN103877670A CN103877670A CN201410072932.7A CN201410072932A CN103877670A CN 103877670 A CN103877670 A CN 103877670A CN 201410072932 A CN201410072932 A CN 201410072932A CN 103877670 A CN103877670 A CN 103877670A
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Abstract
The invention provides a negative pressure wound therapy device and a gas purification method thereof. The negative pressure wound therapy device comprises a shell, a controller, a negative pressure source, a liquid collecting box and a wound sleeving member. The controller and the negative pressure source are arranged inside the shell, and the wound sleeving member is connected with the liquid collecting box. The negative pressure wound therapy further comprises a gas filter in gas circuit communication with the negative pressure source and purifying the gas discharged through the negative pressure source. Since the gas filter capable of filtering the gas discharged through the negative pressure source is arranged, the gas produced during operation can be treated through the negative pressure wound therapy device, peculiar smell can be eliminated, and convenience in operation and use is brought to users.
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 and method for gas purification thereof.
Background technology
Negative pressure wound therapy device, the U.S. is called Negative Pressure Wound Therapy Devices, referred to as NPWT.Its principle, for by wound being applied to negative pressure, promotes the healing of wound.Clinical use experience according to the U.S. over nearly 10 years, this equipment has good healing effect to the treatment of wounds of various acute and chronics.
Please refer to Fig. 1, usually, negative pressure wound therapy device 10 comprises that negative pressure produces controller 9, wound external member 8 and is used for collecting the container (claiming that this container is liquid-collecting bottle 5 here) of wound 1 place's transudate.Wherein, wound external member 8, for wound closure, is manufactured negative pressure space.Wound external member 8 comprises wound implant 2 and wound closure.Negative pressure produces controller 9 for createing needed wound negative pressure, and negative pressure produces controller 9 and comprises negative pressure source 6 and controller 7.When this negative pressure wound therapy device 10 uses, wound implant 2 covers human body wound 1.Wound closure is set above wound implant 2, and wound closure is herein pad pasting 3.Pad pasting 3 seals wound 1.Wound implant 2 is connected on liquid-collecting bottle 5 by connection tube 4, thereby by being directed in liquid-collecting bottle 5 from the transudate of 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 connection tube 4, provides negative pressure by the negative pressure source 6 of adjustable air flow amount, provides power for wound fluid flow to liquid-collecting bottle 5.The negative pressure source 6 of adjustable air flow amount is connecting a controller 7, by controller 7, the negative pressure source 6 of adjustable air flow amount is carried out to control, thereby controls the switch of negative pressure source 6 and the size of air-flow etc.
Conventionally,, for the convenience of carrying and using, the negative pressure source 6 of negative pressure wound therapy device 10, controller 7 and liquid-collecting bottle 5 are arranged in a housing conventionally.When negative pressure wound therapy device 10 is treated patient's wound, can be by the liquid of negative pressure-pumping patient wound, the liquid of wound can produce niff, and these abnormal smells from the patients can enter in the housing of this negative pressure wound therapy device 10 or directly be discharged in air by pipeline and interface.In the time that gas enters in housing, abnormal smells from the patient is difficult for leaving, and makes troubles to follow-up use.Meanwhile, due to may be with antibacterial, abnormal flavour or other impurity in gas, access arrangement or be directly discharged to airborne gas and may bring potential safety hazard to patient and user.
Summary of the invention
Based on this, be necessary to provide a kind of negative pressure wound therapy device and method for gas purification thereof, this negative pressure wound therapy device can be processed the gas producing in work, and person easy to use operates use.
A kind of negative pressure wound therapy device, comprise housing, be arranged at controller 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 comprises the pneumatic filter that is communicated with described negative pressure source gas circuit and described negative pressure source institute expellant gas is purified.
In an embodiment, described pneumatic filter is electrostatic adsorption type, filter fiber filtering type or filtering solution filtering type pneumatic filter therein.
In an embodiment, described pneumatic filter is activated carbon adsorption formula pneumatic filter therein.
Therein in an embodiment, described pneumatic filter comprises filter body, is opened in the gas purification storehouse being connected with outside air on described filter body, the negative pressure source interface that is arranged on the active carbon of impurity in the internal adsorption gas of described gas purification storehouse and is communicated with described gas purification storehouse gas circuit.
Therein in an embodiment, described gas purification is provided with gas filtration passage in storehouse, described active 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.
In an embodiment, the quantity of described gas filtration passage is multiple therein.
In an embodiment, described filter body is fixed on described housing therein; Or, the part that described filter body is described housing.
In an embodiment, described filter body is provided with the draw-in groove for accommodating power line therein, and described draw-in groove is communicated with described air cleaning storehouse gas circuit.
In an embodiment, described pneumatic filter also comprises the cover plate covering on described gas purification storehouse therein, and described cover plate is provided with the venthole that described gas purification storehouse is connected with outside air.
In an embodiment, described negative pressure wound therapy device also comprises the liquid-collecting box being communicated with described negative pressure source gas circuit therein.
A method for gas purification for negative pressure wound therapy device, comprises the steps: that negative pressure source is by the gas discharge with transudate abnormal smells from the patient; Described gas communication is to gas cleaning plant; Described gas cleaning plant carries out purified treatment to described gas.
In an embodiment, described gas cleaning plant carries out purified treatment to described gas and is specially: described gas cleaning plant carries out purified treatment by Electrostatic Absorption to described gas therein; Or described gas cleaning plant carries out purified treatment by fiber filter to described gas; Or described gas cleaning plant is filtered described gas is carried out to purified treatment by filtering solution; Or described gas cleaning plant carries out purified treatment by activated carbon adsorption formula to described gas.
Above-mentioned negative pressure wound therapy device and method for gas purification thereof have the pneumatic filter that negative pressure source expellant gas is filtered, therefore this negative pressure wound therapy device can be processed the gas producing in work, eliminate abnormal flavour, person easy to use operates use.
Brief description of the drawings
Fig. 1 is conventional negative pressure wound therapy device schematic diagram;
Fig. 2 is the Facad structure schematic diagram of negative pressure wound therapy device of the present invention;
Fig. 3 is the structure schematic diagram (front herein and the back side are only in order 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
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.A lot of details are set forth in the following description so that fully understand the present invention.But the present invention can implement to be much different from alternate manner described here, and those skilled in the art can do similar improvement without prejudice to intension of the present invention in the situation that, and therefore the present invention is not subject to the restriction of following public specific embodiment.
It should be noted that, when element is called as " being fixed on " another element, it can be directly on another element or also can have an element placed in the middle.When an element is considered to " connection " another element, it can be directly connected to another element or may have centering elements simultaneously.
Unless otherwise defined, all technology that use are herein identical with the implication that belongs to the common understanding of those skilled in the art of the present invention with scientific terminology.The term using in description of the present invention herein, just in order to describe the object of specific embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
Please refer to Fig. 2, one embodiment of the present of invention provide a kind of negative pressure wound therapy device, and this negative pressure wound therapy device comprises housing, is arranged at controller, negative pressure source, liquid-collecting box, the wound external member being connected with liquid-collecting box in housing and is communicated with the pneumatic filter 100 that negative pressure source institute expellant gas is purified with negative pressure source gas circuit.In Fig. 2, only illustrate pneumatic filter 100, controller, negative pressure source, liquid-collecting box, wound external member are identical with controller, negative pressure source, liquid-collecting box, the wound external member of conventional negative pressure wound therapy device, controller herein, negative pressure source are arranged in 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 negative pressure wound therapy device in example has and purifies air, remove the effect of abnormal flavour and antibacterial, thereby person easy to use operates use.
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 be also electrostatic adsorption type, filter fiber filtering type or filtering solution filtering type pneumatic filter, can be also activated carbon adsorption formula pneumatic filter.In the time being filtering solution filtering type pneumatic filter, the filtration of its Air purification easily can select the scent of or the toxicant that in the gas of the wound to being drawn into, contain to have the chemical solution of conversion or Absorption, thereby reaches the object of Purge gas.It will be appreciated by persons skilled in the art that negative pressure wound therapy device also can adopt above-mentioned dissimilar pneumatic filter mutually to combine, thereby reach the object that strengthens air purification effect.For example, can adopt 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 comprises filter body 110, is opened in the gas purification storehouse 120 being connected with outside air on filter body 110, the negative pressure source interface 140 that is arranged on the active carbon of impurity in the 120 internal adsorption gases of gas purification storehouse and the gas outlet of negative pressure source is communicated with gas purification storehouse 120 gas circuits.
Wherein, filter body 110 can be fixed on housing, can be also a part for housing.In order to make housing more smooth, in the time adopting filter body 110 to be fixed on the form on housing, can on housing, dig out the accommodation space for accommodating filter body 110, filter body 110 can adopt the modes such as engaging or screw locking to inlay in the accommodation space that is fixed on housing.The part that filter main body 110 is herein housing.
In addition, filter body 110 is provided with the draw-in groove 170 for accommodating power line.Draw-in groove 170 is except having the effect of accommodating power line, can also be designed to the form that is connected with gas purification storehouse 120, can distribute from draw-in groove 170 like this through gas purification storehouse 120 purified gases.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, be provided with gas filtration passage 130.In gas filtration passage 130, be provided with active carbon.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.The effect that active carbon has absorption and filters, will be purified through the gas of gas filtration passage 130, thereby remove 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 are all communicated with negative pressure source interface 140 phase gas circuits.Gas arrives gas purification storehouse 120 after reaching negative pressure source interface 140 again after the filtration of gas filtration passage 130, is finally discharged in outside air again.
In addition, in the present embodiment, these gas filtration passages 130 are together parallel with one another.That is to say, one end of each gas filtration passage 130 is all directly connected with negative pressure source interface 140, and the other end is all directly connected with gas purification storehouse 120.In order to make gas purifying effect better, also can adopt the mode that these gas filtration passages 130 are cascaded.,, by end to end these gas filtration passages 130, two gas filtration passages 130 in head and the tail position are directly connected with gas cleaning position 120 with negative pressure source interface 140 respectively.The gas of coming in from negative pressure source interface 140 like this can pass through multistage filtering, thereby reaches the effect that promotes air purification effect.
Please refer to Fig. 3, the back side of pneumatic filter 100 can be provided with multiple ventilation interfaces 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 and sensor role in this negative pressure wound therapy device is identical with conventional negative pressure wound therapy device with mutual annexation, repeats no more herein.
Please refer to Fig. 4, pneumatic filter 100 also comprises the cover plate 150 covering on gas purification storehouse 120.Cover plate 150 is provided with the venthole 160 that gas purification storehouse 120 is connected with outside air.Cover plate can adopt and be fixed or mode that screw is appended is fixed on the filter body 110 of pneumatic filter 100.In addition, on cover plate 150, also can not set out pore 160, now, can discharge via being used for the draw-in groove 170 of accommodating power line through purified gas.
In use, wound external member will cover wound to negative pressure wound therapy device, the negative pressure that then controller is provided for aspirating wound fluid by control negative pressure source.Meanwhile, negative pressure wound therapy device can be taken the gas of wound and liquid away 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 places by negative pressure source.Then, gas will arrive gas filtration passage 130, arrive gas purification storehouse 120 through the filtration of gas filtration passage 130.Finally by the venthole 160 exhaust gas purifying storehouses 120 by draw-in groove 170 or cover plate 150 to outside air.Because negative pressure wound therapy device is discharged to gas in outside air and has passed through the adsorption cleaning effect of the active carbon in gas filtration passage 130, so the gas with abnormal flavour, antibacterial being produced by wound has obtained purification, abnormal flavour and antibacterial have obtained removal.Staff and patient are not vulnerable to puzzlement and the infringement with gas with foreign flavor in the time using this negative pressure wound therapy device, thereby bring 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 a kind of method for gas purification of negative pressure wound therapy device.The method for gas purification of negative pressure wound therapy device can purify the gas producing in negative pressure wound therapy device work process.It comprises the steps:
Step 1: negative pressure source is discharged the gas with transudate abnormal smells from the patient.Gas herein, from patient's wound, has abnormal flavour and impurity etc. in gas.
Step 2: gas communication is to gas cleaning plant.
Step 3: described gas cleaning plant carries out purified treatment to described gas.Gas cleaning plant carries out purified treatment to gas and is specially: gas cleaning plant carries out purified treatment by Electrostatic Absorption to described gas; Or gas cleaning plant carries out purified treatment by fiber filter to described gas; Or gas cleaning plant is filtered described gas is carried out to purified treatment by filtering solution; Or gas cleaning plant carries out purified treatment by activated carbon adsorption formula to described gas.To adopt activated carbon adsorption method to carry out gas purification to negative pressure source expellant gas herein.
By above-mentioned steps, the method for gas purification of negative pressure wound therapy device can carry out purified treatment to the negative pressure source expellant gas of negative pressure wound therapy device, thereby eliminates the abnormal flavour in negative pressure source expellant gas, and person easy to use operates use.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore 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, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (12)
1. a negative pressure wound therapy device, comprise housing, be arranged at controller and negative pressure source in housing, it is characterized in that, described negative pressure wound therapy device also comprises the pneumatic filter that is communicated with and described negative pressure source expellant gas is purified with described negative pressure source gas circuit.
2. negative pressure wound therapy device according to claim 1, is characterized in that, described pneumatic filter is electrostatic adsorption type, filter fiber filtering type or filtering solution filtering type pneumatic filter.
3. negative pressure wound therapy device according to claim 1, is characterized in that, described pneumatic filter is activated carbon adsorption formula pneumatic filter.
4. negative pressure wound therapy device according to claim 3, it is characterized in that, described pneumatic filter comprises filter body, is opened in the gas purification storehouse being connected with outside air on described filter body, the negative pressure source interface that is arranged on the active carbon of impurity in the internal adsorption gas of described gas purification storehouse and is communicated with described gas purification storehouse gas circuit.
5. negative pressure wound therapy device according to claim 4, it is characterized in that, described gas purification is provided with gas filtration passage in storehouse, described active 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.
6. negative pressure wound therapy device according to claim 5, is characterized in that, the quantity of described gas filtration passage is multiple.
7. negative pressure wound therapy device according to claim 4, is characterized in that, described filter body is fixed on described housing; Or, the part that described filter body is described housing.
8. negative pressure wound therapy device according to claim 4, is characterized in that, described filter body is provided with the draw-in groove for accommodating power line, and described draw-in groove is communicated with described air cleaning storehouse gas circuit.
9. according to the negative pressure wound therapy device described in arbitrary claim in claim 4 to 8, it is characterized in that, described pneumatic filter also comprises the cover plate covering on described gas purification storehouse, and described cover plate is provided with the venthole that described gas purification storehouse is connected with outside air.
10. according to the negative pressure wound therapy device described in arbitrary claim in claim 1 to 8, it is characterized in that, described negative pressure wound therapy device also comprises the liquid-collecting box being communicated with described negative pressure source gas circuit.
The method for gas purification of 11. 1 kinds of negative pressure wound therapy devices, is characterized in that, comprises the steps:
Negative pressure source is discharged the gas with transudate abnormal smells from the patient;
Described gas communication is to gas cleaning plant;
Described gas cleaning plant carries out purified treatment to described gas.
12. negative pressure wound therapy devices according to claim 11, is characterized in that, described gas cleaning plant carries out purified treatment to described gas and is specially:
Described gas cleaning plant carries out purified treatment by Electrostatic Absorption to described gas; Or,
Described gas cleaning plant carries out purified treatment by fiber filter to described gas; Or,
Described gas cleaning plant is filtered described gas is carried out to purified treatment by filtering solution; Or,
Described gas cleaning plant carries out purified treatment by activated carbon adsorption formula to described gas.
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| CN201410072932.7A CN103877670B (en) | 2014-02-28 | 2014-02-28 | Negative pressure wound therapy device |
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| CN201410072932.7A CN103877670B (en) | 2014-02-28 | 2014-02-28 | Negative pressure wound therapy device |
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| CN103877670A true CN103877670A (en) | 2014-06-25 |
| CN103877670B CN103877670B (en) | 2016-06-15 |
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| 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 |
| US20130144233A1 (en) * | 2008-01-08 | 2013-06-06 | Smith & Nephew Plc | Sustained variable negative pressure wound treatment and method of controlling same |
| 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 |
-
2014
- 2014-02-28 CN CN201410072932.7A patent/CN103877670B/en active Active
Patent Citations (6)
| 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 |
| US20130144233A1 (en) * | 2008-01-08 | 2013-06-06 | Smith & Nephew Plc | Sustained variable negative pressure wound treatment and method of controlling same |
| 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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