CN211095257U - Pressurized wound dressing structure and pressurized wound closer - Google Patents

Abstract

The utility model discloses a pressurization formula wound dressing structure and pressurization formula wound closer relates to medical product field. Pressurization formula wound dressing structure, including the casing, paste piece and dressing subassembly, the bottom opening of casing, paste the piece and set up on the opening border of casing bottom, be provided with the face of pasting that is used for pasting on the skin surface around the wound in the bottom of pasting the piece, the dressing subassembly of telling sets up inside the casing to clearance between dressing subassembly and the shells inner wall is the setting of compressible regulation so that the dressing subassembly is located the open-ended position of casing bottom by outside extrusion. The utility model discloses can make the dressing subassembly be located casing bottom open-ended position by outside extrusion, and then can be to the wound and organize corresponding pressure effect of exerting pressure voluntarily on every side, can realize the functional effect to exerting pressure to wound local scope, and then through exerting certain pressure effect to the wound side, can play certain oppression effect to the wound position.

Description

Pressurized wound dressing structure and pressurized wound closer

Technical Field

The utility model relates to a medical product field especially relates to a pressurization formula wound dressing structure and pressurization formula wound closer.

Background

Conventional wound dressings, which are generally used only for wound protection covering and absorption of wound exudate, typically do not have both a wound top surface compression function and a wound horizontal pull-on function.

The prior dressing products for pressurizing dressing are usually realized by pressurizing dressing by means of externally applying elastic adhesive tapes or elastic bandages. The advantages are simple and easy to use; the defect 1 is that the pressure application area is large, so that large-range tissue pressure ischemia is easily caused, and the wound healing is not facilitated; the defect 2 is low efficiency, and effective pressure cannot be gathered to accurately act on damaged skin edges; the defect 3 is that when the damaged skin edge is uneven, a reference plane with a shaping function is not provided for the healing of the damaged skin edge, and the healed wound skin edge is uneven and not beautiful; the disadvantage 4 is that when the two sides of the damaged skin edge are not horizontally aligned, no proper measures are taken to pull the wound skin edge to be further aligned.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem be: a pressurized wound dressing structure capable of applying pressure to a local area surface of a wound is provided.

The utility model provides a technical scheme that its technical problem adopted is: pressurization formula wound dressing structure, including the casing, paste piece and dressing subassembly, the bottom opening of casing, paste the piece and set up on the opening border of casing bottom, be provided with the face of pasting that is used for pasting on the skin surface around the wound in the bottom of pasting the piece, the dressing subassembly of telling sets up inside the casing to clearance between dressing subassembly and the shells inner wall is compressible regulation setting so that the dressing subassembly is located the open-ended position of casing bottom and is outwards extruded.

Further, the method comprises the following steps: the shell is of a structure with a contractible and deformable inner cavity.

Further, the method comprises the following steps: the shell comprises a left side sealing film and a right side sealing film, and sealing strips which can be mutually sealed and matched are respectively arranged on the left side sealing film and the right side sealing film.

Further, the method comprises the following steps: the casing includes left side baffle, right side baffle and pushes down the top cap, it can reciprocate to set up between left side baffle and right side baffle with adjusting to push down the top cap, the dressing subassembly is located and pushes down top cap below.

Further, the method comprises the following steps: the shell is a flexible sealing membrane, a sealing cavity can be formed in the shell after the adhesive part is adhered to the skin surface around the wound, and the sealing cavity is connected with the outside through a vacuum tube penetrating through the shell; an air exhaust one-way valve is arranged in the vacuum exhaust pipe.

Further, the method comprises the following steps: the dressing assembly is an expandable volume of composite dressing filler.

Further, the method comprises the following steps: the composite dressing filler comprises a dressing body and a spring, wherein the spring is arranged between the top in the shell and the dressing body or arranged inside the dressing body.

Further, the method comprises the following steps: the composite dressing filler comprises a dressing body and an expansion bag, wherein the expansion bag is arranged between the top in the shell and the dressing body or is arranged inside the dressing body; the expansion bag is connected with the outside through a pressurizing pipeline penetrating through the shell; a pressurizing one-way valve is arranged on the pressurizing pipeline.

Further, the method comprises the following steps: the composite dressing filler comprises a dressing body, wherein the dressing body is made of a liquid-absorbing self-expanding dressing.

Further, the method comprises the following steps: the opening border of casing bottom is connected and will paste the piece and be divided into towards the outside extension that extends of casing and towards the inside extension that extends of casing with pasting the middle part of piece to be equipped with the mouth of stepping down that corresponds with the wound between the extension that is located the pasting the piece of casing both sides, set up in the inside dressing subassembly of casing and can cover in the extension top of wound and both sides.

Further, the method comprises the following steps: still be provided with the stress dispersion layer between the opening border of pasting the piece and casing bottom, the stress dispersion layer laminating sets up in the upper surface of pasting the piece, the rigidity on stress dispersion layer is greater than the rigidity of pasting the piece, and the opening border and the non-border position on stress dispersion layer of casing bottom are connected.

Further, the method comprises the following steps: the bottom of the dressing component is provided with a shaping flat plate, and the bottom surface of the shaping flat plate is a wound involution reference plane with a smooth surface.

Above-mentioned pressurization formula wound dressing structure's beneficial effect be: can make the dressing subassembly be located casing bottom open-ended position after the function that sets up for compressible regulation through clearance between dressing subassembly and the shells inner wall by outside extrusion, and then can exert pressure corresponding pressure effect to wound and surrounding tissue surface initiative, can realize the functional effect of applying pressure to wound local range surface, and then through applying certain pressure effect to the wound side, can play certain oppression effect to the wound position, can play certain hemostatic effect on the one hand and avoid the sepage to continuously ooze, another party then the accessible presses the dressing to the wound position, can improve the alignment effect to the wound, especially when further being provided with moulding dull and stereotyped condition in dressing subassembly bottom, can improve planarization and aesthetic property after the wound healing. In addition, the utility model can realize the function of compressible adjustment of the gap between the dressing component and the inner wall of the shell by adopting various different technical means from the shell and the dressing component respectively, and can meet different requirements according to respective advantages and disadvantages; wherein especially when adopting imbibition from inflation formula dressing to make can the inflation deformation compound dressing filler as dressing subassembly, can realize the inflation volume of dressing automatically according to the seepage volume of sepage and adjust, and then realize feedback control and use the pressure on the wound to further improve the oppression effect to the wound, reduce the sepage volume, realized automatic feedback control and applied pressure's effect to the wound position. In addition, the opening border through setting up the casing bottom is connected with the middle part of pasting the piece, has reduced on the one hand and has been exerted pressure the in-process casing to pasting the influence of the distraction effect of piece to pasting the piece and pasting the fastness, and on the other hand then further presss from both sides the in-process of pressing the wound with the help of the dressing subassembly simultaneously through forming corresponding in-process extension portion, can further improve the effect of pasting the piece, prevents to cause the problem that pastes the piece and drop at the in-process of exerting pressure. In addition, by further providing the stress dispersion layer, the force F applied to the adhesive material by the case can be further dispersed, and the skin can be prevented from being pulled due to the concentration of stress.

In addition, the utility model also provides a pressurization type wound closer, including the above-mentioned the utility model discloses a pressurization type wound dressing structure, still include wound dressing frame, wound dressing frame includes the piece of drawing and close, mounting and dressing rail, forms dressing placing area in the dressing rail inside, the mounting sets up along the both sides of dressing rail, correspond with each mounting and be provided with at least one piece of drawing and close, one end of each drawing and close is connected with corresponding mounting, the other end of drawing and close one side that the dressing rail is close to corresponding mounting is connected, and through the adjustable mounting of the piece of drawing and close the distance between the piece and the dressing rail, the bottom surface of mounting sets up to the fixed face of pasting that is used for pasting on the skin; the pressurized wound dressing structure is disposed within the dressing placement area.

The pressurized wound closer of the utility model can achieve the proper shaping effect of the pressurized wound dressing structure by means of the wound dressing frame by matching the pressurized wound dressing structure with the wound dressing frame, and prevent the pressurized wound dressing structure from being deformed greatly in the process of applying pressure to the wound part to cause the wound to be propped open; in addition, the fixing piece can be pasted and fixed on two sides of a wound, the skin on two sides of the wound is drawn towards the middle under the drawing and closing action of the drawing and closing piece, the skin edges on two sides of the wound are further ensured to be drawn towards the middle and aligned, and then the pressing and pressing action is exerted on the wound part through the pressurizing type wound dressing structure to be matched with each other, so that the horizontal drawing and closing of the wound and the pressurization of the surface of the wound are realized, and the smoothness and the attractiveness of the wound after healing can be improved in the wound healing process.

Drawings

FIG. 1 is a schematic cross-sectional view of a pressurized wound dressing configuration using a composite dressing filler of springs and dressing body;

FIG. 2 is a schematic view of the pressurized wound dressing structure of FIG. 1 in cooperation with a wound;

FIG. 3 is a schematic cross-sectional view of a pressurized wound dressing configuration employing a composite dressing filler comprised of an inflatable bladder and a dressing body, wherein the inflatable bladder is positioned over the dressing body;

FIG. 4 is a schematic cross-sectional view of a pressurized wound dressing configuration employing a composite dressing filler comprised of an inflatable bladder and a dressing body, wherein the inflatable bladder is located within the dressing body;

FIG. 5 is a schematic cross-sectional view of a pressurized wound dressing configuration using a liquid-imbibing self-expanding dressing as a composite dressing filler;

FIG. 6 is a schematic cross-sectional view of a pressurized wound dressing configuration with the housing in the shape of a semi-ellipsoidal structure;

FIG. 7 is a perspective view of a housing portion;

FIG. 8 is a schematic cross-sectional view of the dressing body with a mating datum provided thereon;

FIG. 9 is a schematic structural view of a case using a sealing film;

FIG. 10 is a schematic view of the housing with a push-down cover;

FIG. 11 is a schematic view of the case being a flexible sealing membrane;

FIG. 12 is a schematic view showing the connection between the adhesive member and the housing when the stress dispersion layer is formed;

FIG. 13 is a schematic view showing a state of traction of the adhesive member to the skin using a stress dispersion plate having a certain rigidity;

FIG. 14 is a schematic view showing the state of traction of the adhesive member to the skin using the flexible member;

FIG. 15 is a schematic view of a wound dressing frame;

FIG. 16 is a cross-sectional view of FIG. 15;

labeled as: the device comprises a pulling and closing part 1, a fixing part 2, a dressing fence 3, a dressing placing area 4, a fixing and adhering surface 5, a left side sealing film 6, a right side sealing film 7, a sealing strip 8, a left side baffle 9, a right side baffle 10, a downward pressing top cover 11, a sealing cavity 12, a vacuumizing tube 13, a suction one-way valve 14, a wound dressing frame 15, a stress concentration area 16, an adhering part 17, a wound 18, an adhering surface 19, a buckle 20, a clamping groove 21, a pressurizing one-way valve 22, a spring 23, an expansion bag 24, a pressurizing pipeline 25, an extending part 26, an extending part 27, an allowance opening 28, a shaping flat plate 29, a wound closing reference plane 30, a shell 31, a dressing body 32, a pressurizing type wound dressing structure 33 and a stress dispersion layer 34.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in fig. 1 to 14, pressure type wound dressing structure, including casing 31, paste the piece 17 and the dressing subassembly, the bottom opening of casing 31, paste the piece 17 and set up on the opening border of casing 31 bottom, be provided with in the bottom of pasting the piece 17 and be used for pasting the face 19 of pasting on the skin surface around the wound 18, the dressing subassembly of telling sets up inside casing 31 to clearance between dressing subassembly and the casing 31 inner wall is compressible regulation setting so that the dressing subassembly is located the position of casing 31 bottom opening and is extrudeed outwards.

Wherein the gap between the dressing assembly and the inner wall of the housing 31 is set for compressible adjustment so that the dressing assembly is pressed outward at the bottom opening of the housing 31. The purpose of setting up like this can make the dressing subassembly exert corresponding positive pressure to wound 18 position and surrounding skin tissue from casing 31 bottom opening position through the extrusion effect that shrink regulation produced when using, in order to realize the initiative pressurization to wound 18 position, can realize to the functional effect of applying pressure to wound 18 local range, and then through applying certain pressure effect to wound 18 side, can play certain oppression effect to wound 18 position, can play certain hemostatic effect on the one hand and avoid the sepage to continuously ooze, the other party then accessible is pressed the dressing to the wound position, can improve the alignment effect to the wound.

Specifically, the utility model discloses in realize that clearance between above-mentioned dressing subassembly and the 31 inner walls of casing is compressible function of adjusting can be realized through following two kinds of modes: the first is realized by shrinking the housing 31 to reduce the space inside the housing 31; the second is by inflating the dressing assembly; of course, without loss of generality, the above-described retraction housing 31 and inflation dressing assembly may be employed simultaneously to achieve this.

More specifically, by contracting the housing 31, the present invention can adopt at least the following three types:

first, referring to fig. 9, the housing 31 includes a left sealing film 6 and a right sealing film 7, and sealing strips 8 capable of sealing and matching with each other are respectively disposed on the left sealing film 6 and the right sealing film 7. When the shell 31 needs to be shrunk and deformed, the left sealing film 6 and the right sealing film 7 are inwards buckled with the corresponding sealing strips 8 layer by layer to realize the purpose. More preferably, the sealing strips 8 are arranged in at least two rows in the depth direction of the housing 31. Like this, when setting up multirow sealing strip 8, from closing the outermost row begin, oppress the casing 31 body wall between the adjacent inboard row in order to reduce the internal volume after, in time seal this adjacent inboard row of sealing strip, can realize adjusting casing 31 many times and reduce casing 31 internal volume with the shrink deformation gradually.

Secondly, referring to fig. 10, the housing 31 includes a left side baffle 9, a right side baffle 10 and a pressing cap 11, the pressing cap 11 is adjustably disposed between the left side baffle 9 and the right side baffle 10 in an up-and-down movement, and the dressing assembly is disposed under the pressing cap 11. When the shell 31 is required to be shrunk and deformed, the effect can be realized only by pressing and adjusting the pressing-down top cover 11. More specifically, the pressing-down adjustment of the pressing-down top cover 11 can adopt a snap adjustment structure, as shown in fig. 10, a corresponding snap 20 can be arranged at the edge of the pressing-down top cover 11, and meanwhile, a plurality of levels of snap grooves 21 matched with the snap 20 are arranged on the inner walls of the left baffle 9 and the right baffle 10 along the depth direction, so that different pressing-down depths of the pressing-down top cover 11 can be realized through the matching of the snap 20 and the snap grooves 21 of different levels, and the purpose of shrinkage deformation of the shell 31 at different levels can be realized.

Third, referring to fig. 11, the housing 31 is a flexible sealing film, and a sealed cavity 12 is formed inside the housing 31 after the adhesive member 17 is adhered to the skin surface around the wound 18, and the sealed cavity 12 is connected to the outside through the evacuation tube 13 penetrating the housing 31. When the shell 31 needs to be shrunk and deformed, the shell 31 can be shrunk only by vacuumizing the interior of the shell 31 through the vacuumizing tube 13 and then utilizing the atmospheric pressure. Of course, without loss of generality, this method needs to be matched with corresponding vacuum-pumping equipment, such as a vacuum pump, and meanwhile, the sealing performance of the formed sealed cavity 12 needs to be high so as to ensure that the vacuum-pumping is realized. In addition, in order to facilitate evacuation, an evacuation check valve 14 may be further provided in the evacuation tube 13.

In addition, the dressing assembly can be directly integrated into an expandable volume of the composite dressing filler by inflating the dressing assembly, i.e., the composite dressing filler contains the dressing body 32, while the composite dressing filler also provides a corresponding inflation function. Specifically, the present invention can adopt at least the following four types;

first, referring to fig. 1 and 2, the composite dressing filler includes a dressing body 32 and a spring 23, the spring 23 being disposed between the dressing body 32 and a top portion within a housing 31. Namely, this is a manner in which the expanding action of the composite dressing filler itself is achieved after the pre-compression is released by the elastic force action generated after the spring 23 is pre-compressed, and at the same time, a downward pressure action can be applied to the dressing body 32, so that the dressing body 32 generates a pressure force that presses toward the wound side. Without loss of generality, the spring 23 may also be disposed inside the dressing body 32, if desired, as long as it is capable of acting as an expansion of the dressing body 32.

Second, referring to fig. 3 and 6, the composite dressing filler includes a dressing body 32 and an inflatable bladder 24, the inflatable bladder 24 being disposed between the dressing body 32 and a top portion within the shell 31; the inflatable bladder 24 is connected to the outside by a charging line 25 passing through the housing 31. When the dressing body is required to be expanded, the inflation bag 24 is expanded only by filling corresponding pressurizing medium into the inflation bag 24 through the inflation pipeline 25, and then the dressing body 32 is pressed down through the expansion of the inflation bag 24, so that the dressing body 32 generates pressure to the wound side. Without loss of generality, the expansion bladder 24 should be in a compressed state when not pressurized, so that it can produce an expansion effect when pressurized. In addition, the pressurizing medium may be a gas medium or a liquid medium, such as air or water. In addition, the inflatable bladder 24 should have some expansion and some sealing properties to ensure that the inflated state remains effective. In addition, a corresponding device, such as an air or water pump, which is capable of supplying a pressurized medium, is required during the stamping operation. In addition, in order to facilitate the charging, a charging check valve 22 may be further provided on the charging line 25.

Third, as shown in FIG. 4, the composite dressing filler includes a dressing body 32 and an expanding bladder 24, the expanding bladder 24 being disposed within the dressing body 32; the inflatable bladder 24 is connected to the outside by a charging line 25 passing through the housing 31. Similarly, a charging check valve 22 may be provided in the charging line 25. This construction is similar to the second construction described above, but the mounting position of the inflating bladder 24 is adjusted.

Fourth, and with reference to fig. 5, the composite dressing fill includes a dressing body 32, the dressing body 32 being formed from a liquid-imbibing, self-expanding dressing. The dressing body 32 made of the liquid-absorbing self-expandable dressing is a dressing material that can expand itself after absorbing liquid, and is made of, for example, an expandable polymer material such as a hemostatic powder or a hemostatic fiber of purified plant starch, a hydrophilic super-absorbent fiber fabric, or a pre-compressed dehydrated fiber fabric. The following benefits are also achieved by using a liquid-absorbent self-expanding dressing material: on one hand, the dressing body 32 can effectively absorb seepage generated at the wound 18, on the other hand, the expansion amount of the dressing body 32 can be automatically adjusted according to the seepage amount of the seepage, so that the pressure acting on the wound can be feedback-controlled, the compression effect can be further improved, the seepage amount can be reduced, and the effect of automatically feedback-adjusting the pressure applied to the wound can be realized; namely, the swelling amount of the dressing body 32 can be automatically adjusted according to the seepage amount seeping from the wound 18, and further the pressure applied to the wound part can be adjusted, namely, the larger the seepage amount at the wound 18 is, the larger the swelling amount of the dressing body 32 is, the larger the pressure generated on the wound 18 is, and the larger the pressure is, the larger the tissue at the wound 18 is pressed, so that the stronger the compression hemostasis effect is achieved, and further seepage of seepage is prevented. In addition, rather than the dressing body 32 being formed as a liquid-imbibed self-expanding dressing, a composite dressing matrix may be provided that includes at least one layer of a liquid-imbibed self-expanding material, and the composite layer structure may be formed after the liquid-imbibed self-expanding material layer is disposed on the dressing body 32; wherein, the liquid-absorbing self-expanding material layer is made of a material which can generate an expansion effect after absorbing liquid.

Without loss of generality, the structure of the shell 31 in the present invention can adopt different structural forms, and can adopt a cuboid structure according to actual conditions, as shown in fig. 7; it may also be arranged to have a semi-ellipsoidal configuration as shown in figure 6. In addition, to the front and rear ends of the housing 31, the present invention should perform a corresponding sealing process, so that the housing 31 only has an open bottom structure, as shown in fig. 7, a corresponding circle of the adhesive 17 should be disposed on the entire edge of the open bottom of the housing 31.

In addition, when the dressing subassembly is expandable volume's composite dressing filler, the utility model provides a casing 31 can set up to the not expandable structure of inside cavity, sets up the inflation effect of its inside composite dressing filler in this way and can only expand out through lieing in casing 31 bottom opening, and then improves and can exert pressure to the wound side effectively through the inflation effect of composite dressing filler. More specifically, it is preferable to provide the shell 31 made of an inelastic flexible material as a whole, such as a non-elastic flexible plastic film, a flexible cloth or non-woven fabric, etc., as long as it is ensured that the composite dressing filler can be expanded out from the opening at the bottom of the shell 31 to generate pressure on the wound side after being expanded.

In addition, the use of the above-mentioned non-elastic flexible material for the housing 31 has the following advantages: firstly, the adaptability of the pressurized wound dressing structure to wounds with different shapes can be further improved, namely, the pressurized wound dressing structure can be placed along with the shape of the wound in a bending way to be adapted; second, other wound closing structures, such as the wound dressing frame 15 provided in this patent, can be provided in a matched manner, so that the two sides of the wound 18 can be allowed to be closed towards the middle by means of the deformation of the shell 31, so that the skin edges at the two sides of the wound 18 are aligned towards the middle, and the healing effect of the wound after being closed is ensured.

In addition, the utility model discloses in further set up the opening border of casing 31 bottom and be connected with the middle part of pasting the piece 17 and divide into the extension 26 that extends towards the casing 31 outside and the interior extension 27 that extends towards the casing 31 inside pasting the piece 17, and be equipped with the abdicating mouth 28 that corresponds with wound 18 between the interior extension 27 of pasting the piece 17 that is located casing 31 both sides, the dressing subassembly that sets up in the casing 31 inside can cover above wound 18 and the interior extension 27 of both sides; i.e. the open edge at the bottom of the housing 31 and the adhesive member 17, is in a substantially butterfly connection, as shown in the drawings. The benefits of this arrangement are: on one hand, the influence of the distraction action of the shell 31 on the adhesive part 17 on the adhesion firmness of the adhesive part 17 in the expansion process of the expandable composite dressing filler is reduced, namely, the situation that the adhesive part 17 is easy to peel from the skin surface at the edge because the peeling force generated by the shell 31 on the adhesive part 17 is pulled from the edge of the adhesive part 17 can be avoided; on the other hand, by forming the corresponding inward extending portions 27 and further clamping the inward extending portions 27 by means of the expandable composite dressing filler during the process of expanding and pressing down the wound 18, the adhesive effect of the adhesive member 17 can be further improved, and the problem of the adhesive member 17 falling off during the pressing process can be prevented. Without loss of generality, the internal extension 27 should be positioned as far as possible so as not to overlie the wound 18, and thus a relief port 28 is correspondingly reserved for contact of the wound 18 with the dressing assembly.

Additionally, the utility model discloses in further still be provided with stress dispersion layer 34 between the opening border of pasting piece 17 and casing 31 bottom, stress dispersion layer 34 laminates and sets up in the upper surface of pasting piece 17, stress dispersion layer 34's rigidity is greater than the rigidity of pasting piece 17, and the opening border of casing 31 bottom is connected with stress dispersion layer 34's non-border position. After the stress dispersion layer 34 is arranged, the acting force F of the shell 31 on the pasting piece 17 can be uniformly dispersed through the stress dispersion layer 34, so that the stress concentration can be avoided, and the problem of skin strain caused by the corresponding stress concentration area 16 formed by the stress concentration condition shown in fig. 14 under the condition that only the pasting piece 17 with one layer of film layer is arranged can be avoided. Without loss of generality, the stiffness requirement of the stress dispersion layer 34 should be at least that the stress dispersion layer 34 does not deform more than the skin under the same applied force F to ensure that the stress dispersion layer 34 can effectively resist the applied force F and avoid stress concentration.

More specifically, the adhesive surface 19 is used to adhesively connect the housing 31 to the skin. Specifically, the adhesive surface 19 can be formed by applying a layer of adhesive on the lower side of the adhesive member 17 during use; or can be coated on the pasting member 17 in advance and protected by covering a protective layer, and the pasting can be carried out after the protective layer is uncovered when in use.

In addition, for guaranteeing that the pressure that the wound surface receives is even and to the wound to do the roughness moulding to the surface to closing, the utility model discloses in further set up moulding dull and stereotyped 29 in the bottom of dressing subassembly, moulding dull and stereotyped 29's bottom surface is the smooth wound of surface and closes reference plane 30. The bottom surface of the shaping flat plate 29 should be flat and not easy to deform, so as to ensure that the irregular surface of the initial matching of the wound 18 is further shaped into a flat matching surface by the uniform pressure generated by the shaping flat plate 29 through the wound matching reference plane 30, and the surface is flat and beautiful after the wound is healed.

In addition, as shown in fig. 15 and 16, the present invention further provides a pressurized wound closure device, comprising the above-mentioned pressurized wound dressing structure 33 of the present invention, further comprising a wound dressing frame 15, wherein the wound dressing frame 15 comprises a pulling and closing member 1, a fixing member 2 and a dressing rail 3, a dressing placing area 4 is formed inside the dressing rail 3, the fixing member 2 is disposed along both sides of the dressing rail 3, at least one pulling and closing member 1 is disposed corresponding to each fixing member 2, one end of each pulling and closing member 1 is connected to the corresponding fixing member 2, the other end of each pulling and closing member 1 is connected to one side of the dressing rail 3 close to the corresponding fixing member 2, and the distance between the fixing member 2 and the dressing rail 3 can be adjusted by the pulling and closing member 1, and the bottom surface of the fixing member 2 is set as a fixing and sticking surface 5 for sticking on the skin; the pressurized wound dressing structure 33 is disposed within the dressing placement zone 4.

In use, the fixing member 2 is fixedly adhered to the skin on the periphery of the wound 18 through the fixing and adhering surface 5, then the dressing enclosure 3 is surrounded on the periphery of the wound 18, and the dressing enclosure 3 is connected with the fixing member 2 by the pull closing member 1 so as to be positioned above the wound 18 relative to the position where the dressing enclosure 3 is fixed. Through the dressing placing area 4 formed inside the dressing enclosure 3, the pressurized wound dressing structure 33 is placed in the dressing placing area 4, and the limiting and shaping effects on the pressurized wound dressing structure 33 can be realized. Without loss of generality, the fixing and sticking surface 5 can be formed by coating a layer of adhesive on the lower side surface of the fixing piece 2 in use; or the adhesive can be coated on the fixing piece 2 in advance and protected by covering a protective layer, and the adhesive can be pasted after the protective layer is uncovered when in use.

Without loss of generality, since the dressing enclosure 3 needs to bear the pulling-in force of the pulling-in member 1, the dressing enclosure 3 should adopt a structural stable frame structure, for example, a stainless steel prefabricated member with a certain thickness can be adopted as the dressing enclosure 3, so as to ensure that the dressing enclosure 3 cannot deform and fail under the pulling force of the pulling-in members 1 on two sides.

In addition, the effect of the pulling and closing piece 1 can be applied with corresponding pulling and closing acting force between the dressing rail 3 and the fixing piece 2, and then the acting force is applied to the skin on two sides of the wound through the fixing piece 2, so that the pulling and closing effect on the wound can be realized, and the wound is pulled to the middle and closed. Specifically, the pulling element 1 may be a ratchet structure or a lacing structure. The ratchet structure is characterized in that a corresponding ratchet rack is arranged on the pulling-closing piece 1, a ratchet seat locked with the ratchet rack is arranged on the fixing piece 2, and the pulling-closing piece 1 is adjusted through the matching of the ratchet rack and the ratchet seat. The fastening structure is specifically a flexible fastening strip provided with the pulling and closing member 1, one end of which can be fixed on the dressing enclosure 3, and the other end of which is folded back and fastened to itself after being wound around the fastening strip provided on the fixing member 2, for example, the pulling and closing member 1 can be adjusted by folding and pulling the fastening strip.

Claims (13)

1. Pressurization formula wound dressing structure, its characterized in that: including casing (31), paste piece (17) and dressing subassembly, the bottom opening of casing (31), paste piece (17) and set up on the opening border of casing (31) bottom, be provided with in the bottom of pasting piece (17) and be used for pasting to paste face (19) of pasting on the skin surface around wound (18), the dressing subassembly of telling sets up inside casing (31) to clearance between dressing subassembly and casing (31) inner wall is compressible regulation setting so that the dressing subassembly is located casing (31) bottom open-ended position and is extrudeed outwards.

2. The pressurized wound dressing structure of claim 1, wherein: the shell (31) is of a structure with a contractible and deformable inner cavity volume.

3. The pressurized wound dressing structure of claim 2, wherein: the shell (31) comprises a left side sealing film (6) and a right side sealing film (7), and sealing strips (8) which can be mutually matched in a sealing mode are respectively arranged on the left side sealing film (6) and the right side sealing film (7).

4. The pressurized wound dressing structure of claim 2, wherein: casing (31) include left side baffle (9), right side baffle (10) and push down top cap (11), push down top cap (11) and can reciprocate to set up between left side baffle (9) and right side baffle (10) with adjusting, the dressing subassembly is located and pushes down top cap (11) below.

5. The pressurized wound dressing structure of claim 2, wherein: the shell (31) is a flexible sealing membrane, a sealing cavity (12) can be formed inside the shell (31) after the adhesive piece (17) is adhered to the skin surface around the wound (18), and the sealing cavity (12) is connected with the outside through a vacuumizing tube (13) penetrating through the shell (31); an air-extracting one-way valve (14) is arranged in the vacuum-extracting pipe (13).

6. The pressurized wound dressing structure of claim 1, wherein: the dressing assembly is an expandable volume of composite dressing filler.

7. The pressurized wound dressing structure of claim 6, wherein: the composite dressing filler comprises a dressing body (32) and a spring (23), wherein the spring (23) is arranged between the top part in the shell (31) and the dressing body (32) or is arranged in the dressing body (32).

8. The pressurized wound dressing structure of claim 6, wherein: the composite dressing filler comprising a dressing body (32) and an expanding bladder (24), the expanding bladder (24) being disposed between the top within the casing (31) and the dressing body (32) or the expanding bladder (24) being disposed within the dressing body (32); the expansion bladder (24) is connected with the outside through a pressurizing pipeline (25) penetrating through the shell (31); a charging one-way valve (22) is arranged on the charging pipeline (25).

9. The pressurized wound dressing structure of claim 6, wherein: the composite dressing filler includes a dressing body (32), the dressing body (32) being formed from a liquid-imbibing self-expanding dressing.

10. The pressurized wound dressing structure of claim 1, wherein: the opening edge of the bottom of the shell (31) is connected with the middle of the adhesive part (17) and divides the adhesive part (17) into an outer extension part (26) extending towards the outside of the shell (31) and an inner extension part (27) extending towards the inside of the shell (31), an abdicating opening (28) corresponding to the wound (18) is arranged between the inner extension parts (27) of the adhesive part (17) positioned at two sides of the shell (31), and the dressing assembly arranged inside the shell (31) can cover the wound (18) and the upper parts of the inner extension parts (27) at two sides.

11. The pressurized wound dressing structure of claim 1, wherein: still be provided with stress dispersion layer (34) between the opening border of pasting a piece (17) and casing (31) bottom, stress dispersion layer (34) laminating sets up in the upper surface of pasting a piece (17), the rigidity of stress dispersion layer (34) is greater than the rigidity of pasting a piece (17), and the opening border and the non-border position of stress dispersion layer (34) of casing (31) bottom are connected.

12. A pressurised wound dressing construction according to any of claims 1 to 11, wherein: a shaping flat plate (29) is arranged at the bottom of the dressing component, and the bottom surface of the shaping flat plate (29) is a wound involution reference plane (30) with a flat surface.

13. A pressurized wound closure comprising a pressurized wound dressing structure (33) according to any of the preceding claims 1 to 12, characterized in that: the wound dressing frame (15) comprises a pulling and closing part (1), fixing parts (2) and a dressing fence (3), a dressing placing area (4) is formed inside the dressing fence (3), the fixing parts (2) are arranged along two sides of the dressing fence (3), at least one pulling and closing part (1) is arranged corresponding to each fixing part (2), one end of each pulling and closing part (1) is connected with the corresponding fixing part (2), the other end of each pulling and closing part (1) is connected with one side, close to the corresponding fixing part (2), of the dressing fence (3), the distance between each fixing part (2) and the corresponding fence dressing (3) can be adjusted through the pulling and closing part (1), and the bottom surface of each fixing part (2) is provided with a fixing and sticking surface (5) for being stuck on the skin; the pressurised wound dressing structure (33) is disposed within the dressing placement zone (4).

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