CN104043189B - A kind of welding blocks water the interface structure of film and negative pressure wound therapy instrument - Google Patents
A kind of welding blocks water the interface structure of film and negative pressure wound therapy instrument Download PDFInfo
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- CN104043189B CN104043189B CN201410275061.9A CN201410275061A CN104043189B CN 104043189 B CN104043189 B CN 104043189B CN 201410275061 A CN201410275061 A CN 201410275061A CN 104043189 B CN104043189 B CN 104043189B
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Abstract
The embodiment of the present invention provides the interface structure that a kind of welding blocks water film, in negative pressure wound therapy instrument, it is arranged on liquid-collecting bottle, it is cylinder-like structure by the pipeline described interface structure that is connected with negative pressure pump, its inwall extends a lap welding tape splicing, for carrying out ultrasonic bonding with the film that blocks water, make described in block water film cover described interface structure one end；Described welded bands has extended internally isolation strip, and described isolation strip is for contact with the described film that blocks water, and when negative pressure pump is opened, and described blocking water realizes between film adsorbing sealing.The embodiment of the present invention accordingly provides a kind of negative pressure wound therapy instrument.Implement the present invention, the advantage with the film good water-proof effect that blocks water, it is possible to reduce or the probability that leaking occurs in the film that prevents from blocking water.
Description
Technical field
The present invention relates to field of medical device, particularly relate to a kind of welding and block water the interface structure of film and negative pressure wound therapy instrument.
Background technology
Negative pressure wound therapy (Negative Pressure Wound Therapy, NPWT) is the advanced trauma care mode that development in recent years is got up.It mainly by applying relatively low negative pressure (general-55mmHg to 175mmHg) to wound, promotes the healing of wound surface.Specifically, vacuum suction acts on cell membrane, can be allowed to expand, distort, cell is taken as damage, and the information of conduction impairment, to nucleus, is changed by signal, heal before causing emiocytosis somatomedin, including the vascular proliferation factor, thus stimulates tissue to produce more new vessels；It addition, vacuum suction siphons away transudate from wound surface, help to set up wound bed fluid balance；And one moistening environment of offer is provided, removes slough, reduce the bacterial number (because antibacterial is difficult to survival under negative pressure) of wound surface, alleviate the effect of edema (i.e. extracellular fluid/intercellular fluid)；Secondly, when captivation acts on dressing, air is sucked away, and dressing acts on wound surface uniformly with regard to collapses down compressing, and this pressure can resist the excess of the wound surface caused and ooze out.Therefore negative pressure wound therapy technology can be used for Patients with Big Area Burn, can avoid patient being made to lose too much plasma protein owing to substantial amounts of wound surface oozes out by this technology, reduce its probability that hypovolemic shock occurs.
Showing according to U.S.'s clinic over nearly 10 years, negative pressure wound therapy has good healing effect to the treatment of wounds of various acute and chronics.As it is shown in figure 1, be the structural representation of existing a kind of negative pressure wound therapy instrument.Comprising: Wound treatment apparatus 9 and wound external member 8.Wherein, wound external member 8 is used for closing wound, and Wound treatment apparatus 9 is for createing required negative wound pressure space.Specifically, negative pressure wound therapy instrument includes the parts such as controller 7, negative pressure pump 6, liquid-collecting bottle 5, outside trachea 4, and wherein, the pressure of negative pressure pump 6 is controlled by controller 7, is provided with liquid-collecting bottle 5 between the pipeline 4 being connected between negative pressure pump 6 with wound 1.When treating, wound dressing 2 is filled at patient wound 1, outside trachea 4 is inserted in wound dressing 2, then seal with pad pasting 3 above, negative pressure is applied to patient wound by starting negative pressure pump 6, make dressing cover on patient wound, promote wound circumference blood circulation, accelerate the healing of wound.
In order to prevent the liquid in liquid-collecting bottle 5 from entering inside pipeline 4 and negative pressure pump 6, the generally seam at liquid-collecting bottle 5 with pipeline 4 is provided with the film 120 that blocks water.Partial front elevation view and the profile of the attachment structure at this film 120 that blocks water can be referring specifically to shown in Fig. 2 and Fig. 3.Wherein, the film 120 that blocks water is to be welded on by the way of with ultrasonic bonding in this attachment structure, and welding position is as shown in label 110.
But, in existing this negative pressure wound therapy instrument, due to the suction of negative pressure pump 6 when pressure during ultra-sonic welded and use, make the to block water edges and corners of film 120 and weld 110 easily produce friction, there is breakage in the film 120 that can make to block water, thus causes liquid to be entered in outside trachea 4 and negative pressure pump 6 by this fray.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, it is provided that a kind of welding blocks water the interface structure of film and negative pressure wound therapy instrument.Its film good water-proof effect that blocks water, reduces or probability that leaking occurs in the film that prevents from blocking water.
In order to solve above-mentioned technical problem, the embodiment of the present invention provides the interface structure that a kind of welding blocks water film, and in negative pressure wound therapy instrument, it is arranged on liquid-collecting bottle, is connected with negative pressure pump by pipeline, it is characterised in that:
Described interface structure is cylinder-like structure, and its inwall extends a lap welding tape splicing, for carrying out ultrasonic bonding with the film that blocks water, make described in the film that blocks water cover described interface structure；
Described welded bands has extended internally isolation strip, and described isolation strip is for contact with the described film that blocks water, and when negative pressure pump is opened, and blocks water and realizes between film 300 adsorbing sealing.
Wherein, described welded bands has smooth cambered surface.
Wherein, isolation strip at least includes a smooth inclined-plane, and when negative pressure pump is opened, the marginal portion of the film 300 that blocks water is attracted on isolation strip.
Wherein, described isolation strip includes a smooth inclined-plane and the plane at a formed obtuse angle, when negative pressure pump is opened, described in the block water marginal portion of film be attracted on isolation strip, between described isolation strip and described welded bands, be formed with insulating space.
Wherein, described isolation strip includes projection and/or the depression of at least one circle cambered surface.
Wherein, described isolation strip includes that multi-turn isolated groove, the bossing of each isolated groove are cambered surface.
Wherein, described interface structure is positioned at the location below of described isolation strip and is provided with multiple support arm for supporting the film that blocks water, and is provided with at least one blow vent on each support arm.
Wherein, the plurality of support arm is parallel to each other.
Correspondingly, another aspect of the embodiment of the present invention, additionally provide a kind of negative pressure wound therapy instrument, it at least includes that aforesaid welding blocks water the interface structure of film.
Implement the embodiment of the present invention, have the advantages that
First, in embodiments of the present invention, welded bands has smooth cambered surface, can reduce and block water film because frictional force is by the probability of this surface abrasion when welding with the film that blocks water or after welding；
Secondly, in the embodiment of the present invention, have employed isolation strip further, when negative pressure starts, the block water marginal portion of film is isolated band and stops and be attracted on isolation strip, thus can form the insulating space of closing between isolation strip and welded bands, accordingly even when when abrasion occurs in some pad of welded bands, this insulating space can stop liquid to enter in the pipeline being connected with negative pressure source (negative pressure pump)；
And, in certain embodiments, this isolation strip uses projection and/or the form of depression of at least one circle cambered surface, or the form of employing multi-turn isolated groove, can form multiple sealing space when negative pressure starts, thus reach more preferable block-water effect；
Additionally, it is positioned at the position on the downside of isolation strip at interface structure and is provided with multiple support arm for supporting the film that blocks water, and on each support arm, it is provided with at least one blow vent, so the film that blocks water can be formed more preferable supporting role, thus the situation of local damage occurs because negative pressure is excessive in the film that prevents from blocking water.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, the accompanying drawing obtaining other according to these accompanying drawings still falls within scope of the invention.
Fig. 1 is the structural representation of existing a kind of negative pressure wound therapy instrument；
Fig. 2 is the partial front elevation view of the film attachment structure that blocks water in Fig. 1；
Fig. 3 be in Fig. 2 A-A to the partial schematic diagram of sectional view；
Fig. 4 is that the welding that the present invention provides blocks water the structural representation of one embodiment of interface structure of film；
Fig. 5 is that the B-B in an embodiment of Fig. 4 is to the profile partial schematic diagram of section；
The position view of the film that blocks water when Fig. 6 is that in Fig. 5, negative pressure is not actuated；
Fig. 7 is the position view of the film that blocks water in Fig. 5 after negative pressure startup；
Fig. 8 is the profile partial schematic diagram to section of the B-B in another embodiment of Fig. 4；
Fig. 9 is the position view of the film that blocks water in Fig. 8 after negative pressure startup；
Figure 10 is the profile partial schematic diagram to section of the B-B in another embodiment of Fig. 4；
Figure 11 is the position view of the film that blocks water in Figure 10 after negative pressure startup.
Detailed description of the invention
The explanation of following embodiment is with reference to accompanying drawing, can be in order to the specific embodiment implemented in order to the formula example present invention.The direction term that the present invention is previously mentioned, such as " on ", D score, "front", "rear", "left", "right", " interior ", " outward ", " side " etc., be only the direction with reference to annexed drawings.Therefore, the direction term of use is to illustrate and understand the present invention, and is not used to limit the present invention.
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 4, show that a kind of welding that the embodiment of the present invention provides blocks water the interface structure of film, this welding blocks water the interface structure of film in negative pressure wound therapy instrument, wherein, negative pressure wound therapy instrument can be negative pressure wound therapy instrument as shown in Figure 1, have in the negative pressure wound therapy instrument connecting pipeline it should be understood that this interface structure can also be applied other kinds of.In this embodiment, the block water interface structure 200 of film of this welding is arranged on the liquid-collecting bottle 5 of negative pressure wound therapy instrument, is connected with negative pressure pump 6 by pipeline 4, specifically:
This interface structure 200 is cylinder-like structure, and its inwall extends a lap welding tape splicing 210, for carrying out ultrasonic bonding with the film that blocks water, and makes the whole interface structure one end of film covering that blocks water after welding；
The isolation strip 220 it addition, this welded bands 210 has extended internally, this isolation strip at least includes that a circle cambered surface is protruding, and for contacting with the film that blocks water, and when negative pressure pump is opened, and the realization absorption between film 300 that blocks water seals.
Additionally, in order to the film that blocks water is formed more preferable supporting role, it is positioned at the position on the downside of isolation strip 220 at interface structure 200 and is provided with multiple support arm 230 for supporting the film that blocks water, the most the plurality of support arm 23 is parallel to each other, and on each support arm, it is provided with at least one blow vent 240, the effect of this blow vent 240 mainly makes the size being in the air pressure of the film side that blocks water become evenly, and the situation of local damage occurs because negative pressure is excessive in the film that is so possible to prevent to block water.
As shown in Figure 5, it is shown that the welded bands 210 in an embodiment and the concrete structure of isolation strip 220.Wherein, this 210 welded bands has a smooth cambered surface, for, when welding with the film that blocks water or after welding, reducing the film that blocks water because frictional force is by the probability of this surface abrasion.
Wherein, this isolation strip 220 includes a smooth inclined-plane and the plane of a formed obtuse angle a, and it is less than welded bands 210 in inclined-plane in whole or in part.In one embodiment, this obtuse angle a can be such as 120 degree.Combining the most in the lump shown in Fig. 6 and Fig. 7, when negative pressure pump 6 is not opened, there is certain gap with isolation strip 220 in the film 300 that blocks water.When negative pressure pump 6 is opened, the block water marginal portion of film 300 is isolated band 220 and stops and be attracted on this isolation strip 220, now both at least parts are bonded to each other, thus between isolation strip 220 and welded bands 210, form the insulating space 410 that at least part is closed, accordingly even when when abrasion occurs in some pad of welded bands 210, this insulating space also can stop liquid to enter in the pipeline being connected with negative pressure source (negative pressure pump).
It is understood that in other examples, wherein, this isolation strip 220 can only include a smooth inclined-plane, and it is less than welded bands 210 in inclined-plane in whole or in part.When negative pressure pump 6 is not opened, there is certain gap with isolation strip 220 in the film 300 that blocks water.When negative pressure pump 6 is opened, the block water marginal portion of film 300 is isolated band 220 and stops and be attracted on this isolation strip 220, now both at least parts are bonded to each other, even if thus when abrasion occurs in some pad of welded bands 210, it also can stop liquid to enter in the pipeline being connected with negative pressure source (negative pressure pump).
As shown in Figure 8 and Figure 9, the welded bands 210 in another embodiment and the concrete structure of isolation strip 220 have been shown.In this embodiment, it is different with the structure differring primarily in that isolation strip 220 of the embodiment shown in Fig. 5.In this embodiment, this isolation strip 220 includes projection and/or the depression of at least one circle cambered surface, and its position is below welded bands 210.Said structure can make the to block water surface of film 300 and isolation strip 220 forms more barrier structure, more effectively reduce because of negative pressure relatively low time, the gap that can leak that the film 300 that blocks water closely is not formed with the laminating of surface, isolation strip 220.
As shown in Figure 10 and Figure 11, the welded bands 210 in another embodiment and the concrete structure of isolation strip 220 have been shown.In this embodiment, it is different with the structure differring primarily in that isolation strip 220 of the embodiment shown in Fig. 5.In this embodiment, this isolation strip 220 includes that multi-turn isolated groove, the bossing of each isolated groove are cambered surface, and the bossing of each isolated groove is basically identical with the height of welded bands 210.The purpose of multi-turn isolated groove is set also for forming multiple sealing space, so that the block-water effect of the film that blocks water is more preferable.
Correspondingly, another aspect of the embodiment of the present invention, additionally provide a kind of negative pressure wound therapy instrument, it at least includes that the welding as shown in Fig. 4 to Figure 11 blocks water the interface structure of film.
Implement the embodiment of the present invention, have the advantages that
First, in embodiments of the present invention, welded bands has smooth cambered surface, can reduce and block water film because frictional force is by the probability of this surface abrasion when welding with the film that blocks water or after welding；
Secondly, in the embodiment of the present invention, have employed isolation strip further, when negative pressure starts, the block water marginal portion of film is isolated band and stops and be attracted on isolation strip, thus can form the insulating space of closing between isolation strip and welded bands, accordingly even when when abrasion occurs in some pad of welded bands, this insulating space can stop liquid to enter in the pipeline being connected with negative pressure source (negative pressure pump)；
And, in certain embodiments, this isolation strip uses projection and/or the form of depression of at least one circle cambered surface, or the form of employing multi-turn isolated groove, can form multiple sealing space when negative pressure starts, thus reach more preferable block-water effect；
Additionally, it is positioned at the position on the downside of isolation strip at interface structure and is provided with multiple support arm for supporting the film that blocks water, and on each support arm, it is provided with at least one blow vent, so the film that blocks water can be formed more preferable supporting role, thus the situation of local damage occurs because negative pressure is excessive in the film that prevents from blocking water.
Above disclosed it is only one preferred embodiment of the present invention, certainly can not limit the interest field of the present invention, the equivalent variations therefore made according to the claims in the present invention with this, still belong to the scope that the present invention is contained.
Claims (8)
1. a welding blocks water the interface structure (200) of film, and in negative pressure wound therapy instrument, it is arranged on liquid-collecting bottle, is connected with negative pressure pump by pipeline, it is characterised in that:
Described interface structure (200) is cylinder-like structure, and its inwall extends a lap welding tape splicing (210), for carrying out ultrasonic bonding with the film that blocks water (300), make described in the film (300) that blocks water cover one end of described interface structure (200)；
Described welded bands (210) has extended internally isolation strip (220), and described isolation strip (220), for contact with the described film that blocks water (300), and when negative pressure pump is opened, and realize between the described film that blocks water (300) adsorbing sealing；
Described isolation strip (220) at least includes a smooth inclined-plane, when negative pressure pump is opened, described in the block water marginal portion of film (300) be attracted on isolation strip (220).
2. the interface structure welding the film that blocks water as claimed in claim 1, it is characterised in that described welded bands (210) has smooth cambered surface.
3. the interface structure welding the film that blocks water as claimed in claim 2, it is characterized in that, described isolation strip (220) includes a smooth inclined-plane and the plane at a formed obtuse angle, when negative pressure pump is opened, the marginal portion of the described film that blocks water (300) is attracted on isolation strip (220), is formed with insulating space between described isolation strip (220) and described welded bands (210).
4. the interface structure welding the film that blocks water as claimed in claim 2, it is characterised in that described isolation strip (220) include projection and/or the depression of at least one circle cambered surface.
5. the interface structure welding the film that blocks water as claimed in claim 2, it is characterised in that described isolation strip (220) include that multi-turn isolated groove, the bossing of each isolated groove are cambered surface.
6. the welding as described in any one of claim 2-5 blocks water the interface structure of film, it is characterized in that, described interface structure (200) is positioned at described isolation strip (220) location below and is provided with multiple support arm (230) for supporting film (300) that block water, and is provided with at least one blow vent (240) on each support arm.
7. the interface structure welding the film that blocks water as claimed in claim 6, it is characterised in that the plurality of support arm (230) is parallel to each other.
8. a negative pressure wound therapy instrument, it is characterised in that at least include that the welding as described in any one of claim 1-7 blocks water the interface structure (200) of film.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410275061.9A CN104043189B (en) | 2014-06-19 | 2014-06-19 | A kind of welding blocks water the interface structure of film and negative pressure wound therapy instrument |
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| CN201410275061.9A CN104043189B (en) | 2014-06-19 | 2014-06-19 | A kind of welding blocks water the interface structure of film and negative pressure wound therapy instrument |
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| CN104043189B true CN104043189B (en) | 2016-08-24 |
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Citations (7)
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| CN201058158Y (en) * | 2007-06-27 | 2008-05-14 | 上海达华医疗器械有限公司 | Air filter |
| CN201088751Y (en) * | 2007-06-22 | 2008-07-23 | 黄金钟 | Self-exhaust filter for infusion |
| CN202082601U (en) * | 2011-06-03 | 2011-12-21 | 江苏迪康电气有限公司 | Decompression port component of gas insulation cabinet |
| CN202961477U (en) * | 2012-09-20 | 2013-06-05 | 昆山韦睿医疗科技有限公司 | Negative pressure suction system |
| CN103191499A (en) * | 2013-03-27 | 2013-07-10 | 贾宇东 | Positioning installation structure of pointed bubble stopping exhaust film in dripping bottle exhaust vent |
| CN203493987U (en) * | 2013-10-08 | 2014-03-26 | 成都市新津事丰医疗器械有限公司 | Precise filtration bag-type infusion device |
| CN203944008U (en) * | 2014-06-19 | 2014-11-19 | 昆山韦睿医疗科技有限公司 | A kind of welding block water interface structure and the negative pressure wound therapy instrument of film |
-
2014
- 2014-06-19 CN CN201410275061.9A patent/CN104043189B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201088751Y (en) * | 2007-06-22 | 2008-07-23 | 黄金钟 | Self-exhaust filter for infusion |
| CN201058158Y (en) * | 2007-06-27 | 2008-05-14 | 上海达华医疗器械有限公司 | Air filter |
| CN202082601U (en) * | 2011-06-03 | 2011-12-21 | 江苏迪康电气有限公司 | Decompression port component of gas insulation cabinet |
| CN202961477U (en) * | 2012-09-20 | 2013-06-05 | 昆山韦睿医疗科技有限公司 | Negative pressure suction system |
| CN103191499A (en) * | 2013-03-27 | 2013-07-10 | 贾宇东 | Positioning installation structure of pointed bubble stopping exhaust film in dripping bottle exhaust vent |
| CN203493987U (en) * | 2013-10-08 | 2014-03-26 | 成都市新津事丰医疗器械有限公司 | Precise filtration bag-type infusion device |
| CN203944008U (en) * | 2014-06-19 | 2014-11-19 | 昆山韦睿医疗科技有限公司 | A kind of welding block water interface structure and the negative pressure wound therapy instrument of film |
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| CN104043189A (en) | 2014-09-17 |
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