JPWO2008133170A1 - Negative pressure closure therapy device and sealing means - Google Patents

Abstract

The main object of the present invention is to provide a negative pressure closure therapy device and a sealing means that can prevent generation of wrinkles and can provide a suitable negative pressure in close contact with the body. For example, the negative pressure closure therapy device of the present invention A bag-like cover for covering the affected area, an opening for inserting the affected area into the cover, a sealing means provided in the opening for fixing the cover to the body, and the cover A negative pressure closure therapy device comprising: a suction portion for connecting the inside of the suction device to a suction source; and the sealing means includes a base material, an adhesive layer formed on one surface of the base material, and the adhesive layer And a release sheet provided on the surface of the adhesive sheet, and at least a part of the release sheet projects from the base material.

Description

  The present invention relates to a negative pressure closure therapy device and sealing means, and more particularly to a negative pressure closure therapy device and a sealing means for use in a bag-like cover for covering an affected area.

  Conventionally, in the treatment of wounds, burns, pressure ulcers, ulcers and the like (hereinafter sometimes referred to simply as “affected areas”), protection from the physical irritation to the affected areas, absorption of excessive exudate and maintenance of a moist environment, For the purpose of preventing contamination from the outside, a method of disposing a sterilized absorbent pad or the like on an affected area and fixing it to the surrounding skin with a bandage or an adhesive tape has been generally performed.

  Currently, negative pressure closure therapy is used in combination as a method for further promoting healing. Here, negative pressure closure therapy is a treatment method that promotes healing by placing an affected area under negative pressure.

  Negative pressure closure therapy is performed by placing a tube for suction on the absorption pad as described above, and covering a wide area including the affected area from the top of the tube with a cover made of film material etc. with an adhesive layer on one side. There is a method (for example, see Patent Document 1) and a method for covering a wide area including the affected area with a bag-like cover provided with a suction tube (for example, see Patent Document 2).

  The former is an effective method mainly for the affected part of the plane of the body, and the latter is an effective method for the ends of the extremities such as limbs. In particular, the latter method is effective in places with a lot of unevenness such as fingers and heels because it is difficult to apply the film along the unevenness.

  By the way, in negative pressure closure therapy, in order to place an affected part under negative pressure, it is necessary to make the cover of a film material etc. and the opening part of a bag-shaped cover adhere to a body by an adhesive layer or an adhesive tape. In the case of a bag-shaped cover, a method of sticking to the body with a pressure-sensitive adhesive layer provided on the skin side of the opening part into which the limb is inserted conventionally, or covering with a plurality of adhesive tapes from above the opening part to the body The method of sticking to the body has been taken.

  However, when the bag-shaped cover is adhered by the pressure-sensitive adhesive layer, there is a problem in that the limbs are obstructive when the release sheet covering the adhesive layer is peeled off, making it difficult to remove the release sheet.

  Moreover, since the opening part of a bag-shaped cover is cylindrical, when a peeling sheet is removed at once, adhesive layers will adhere in the part which is not intended, and wrinkles generate | occur | produce. And there exists a problem that it is difficult to maintain a suitable negative pressure because external air flows in from the soot.

Furthermore, when it is made to adhere to the body by covering it with the adhesive tape from the top of the opening to the body, the opening of the bag-like cover is folded and gathered up to the thickness of the arm or leg, and then the body with the adhesive tape Therefore, there is a problem that it is difficult to maintain a suitable negative pressure by the outside air flowing in from the overlap of the folded covers.
JP-T 09-503923 Japanese Utility Model Publication No. 04-25754

  The present invention has been made in view of the above problems, and provides a negative pressure closure therapy device and a sealing means that can prevent generation of wrinkles and can provide a suitable negative pressure in close contact with the body. There is.

  The above-mentioned subject is achieved by the following.

  That is, the negative pressure closure therapy device of the present invention includes a bag-like cover for covering the affected part, an opening for inserting the affected part into the cover, and the opening for fixing the cover to the body. And a suction part for connecting the inside of the cover to a suction source, wherein the sealing means is formed on one surface of the base material. A negative pressure characterized by comprising a sticking material comprising at least a pressure-sensitive adhesive layer and a release sheet provided on a surface of the pressure-sensitive adhesive layer, wherein at least a part of the release sheet projects from the substrate. It is a closure therapy tool. The “bag shape” of the bag-shaped cover for covering the affected part means not only a bag shape but also a sleeve shape.

  The negative pressure closure therapy device of the present invention includes a bag-like cover for covering the affected area, an opening for inserting the affected area into the cover, and the opening for fixing the cover to the body. And a suction part for connecting the inside of the cover to a suction source, wherein the sealing means is formed on one surface of the base material. The adhesive layer and a release sheet provided on the surface of the adhesive layer are arranged so that the adhesive layers face each other, and the adhesive material is short in the longitudinal direction. The adhesive layer is covered with at least two release sheets, and the release sheet is provided along the longitudinal direction of the adhesive layer and is folded and folded. Release sheet Parts is negative pressure wound therapy devices, characterized in that it protrudes from the longitudinal end.

  Furthermore, the negative pressure closure therapy device of the present invention includes a bag-like cover for covering the affected area, an opening for inserting the affected area into the cover, and the opening for fixing the cover to the body. And a suction part for connecting the inside of the cover to a suction source, wherein the sealing means is formed on one surface of the base material. Two adhesives comprising at least a pressure-sensitive adhesive layer and a release sheet provided on the surface of the pressure-sensitive adhesive layer, wherein the two pressure-sensitive adhesive layers face each other, The patch has a longitudinal direction and a short direction, and the adhesive layers are bonded to each other at one end in the longitudinal direction, and the release sheet is also provided from the other end in the longitudinal direction of the patch to one end. And folded at one end It is negative pressure wound therapy devices, it characterized in that the end portion of the release sheet is returned protrudes from the other longitudinal end of the patch.

  Furthermore, the negative pressure closure therapy device of the present invention includes a bag-like cover for covering the affected area, an opening for inserting the affected area into the cover, and the opening for fixing the cover to the body. In a negative pressure closure therapy device comprising a sealing means provided in a part and a suction part for connecting the inside of the cover to a suction source, the sealing means is formed on a base material and one surface of the base material A pressure-sensitive adhesive layer and a release sheet provided on the surface of the pressure-sensitive adhesive layer, wherein two adhesives are arranged so that the pressure-sensitive adhesive layers face each other, and the pressure-sensitive adhesive layer Is covered with at least two release sheets, and the release sheet is also provided from the end of the adhesive material toward the center and is folded back substantially at the center, and the end of the folded release sheet is the end Both patch materials It is negative pressure wound therapy devices, characterized in that protrudes from the part.

  Further, the negative pressure closure therapy device of the present invention may have a structure in which the bag-like cover is formed into a sleeve shape.

  In addition, the negative pressure closure therapy device of the present invention may have a structure in which an airtight fastener is provided on the cover.

  Moreover, the negative pressure closure therapy device of the present invention can also have a structure provided with a placement mark for the affected area.

  The negative pressure closure therapy device of the present invention may have a structure in which a grip portion is provided on the sealing means.

  Further, the negative pressure closure therapy device of the present invention may have a structure in which the suction part includes a sealing means.

  Furthermore, in order to solve the above problems, the invention of the sealing means used for the bag-like cover for covering the affected part of the present invention includes a base material, an adhesive layer formed on one surface of the base material, and the adhesive A seal used for a bag-like cover for covering an affected area, wherein the release sheet is provided with a release sheet provided on the surface of the agent layer, and one end of the release sheet projects from the base material Means.

  The sealing means used for the bag-like cover for covering the affected part of the present invention includes a base material, an adhesive layer formed on one surface of the base material, and a release sheet provided on the surface of the adhesive layer. The two adhesives are arranged so that the adhesive layers face each other, and the two adhesives are provided with a longitudinal direction and a transverse direction, The pressure-sensitive adhesive layers are bonded to each other at one end, and the release sheet is also provided from the other end in the longitudinal direction of the adhesive material toward the one end and is folded at one end. It is a sealing means used for the bag-shaped cover for covering the affected part characterized by projecting from the other end in the longitudinal direction of the material.

  The sealing means used for the bag-like cover for covering the affected part of the present invention includes a base material, an adhesive layer formed on one surface of the base material, and a release sheet provided on the surface of the adhesive layer. And at least two sheets of adhesive material provided with the pressure-sensitive adhesive layers facing each other, wherein the pressure-sensitive adhesive layer is covered with at least two release sheets, For covering an affected part, characterized in that it is also provided from the end of the adhesive material toward the center and is folded at substantially the center, and the end portions of the peeled release sheet project from both ends of the adhesive material. It is a sealing means used for a bag-shaped cover.

The sealing means used for the bag-like cover for covering the affected part of the present invention includes a base material, an adhesive layer formed on one surface of the base material, and a release sheet provided on the surface of the adhesive layer. And a structure in which one adhesive material provided with at least is folded so that the adhesive layers face each other,
The patch is provided with a longitudinal direction and a lateral direction, and is covered with at least two release sheets,
The release sheet is provided toward the folded portion from the longitudinal end of the patch, and is folded back at the folded portion, and the end of the folded release sheet projects from the longitudinal end of the patch. It is the sealing means used for the bag-shaped cover for covering the affected part characterized by being.

  Furthermore, the sealing means used for the bag-shaped cover for covering the affected part of the present invention may have a structure in which the bag-shaped cover is formed into a sleeve shape.

It is a schematic explanatory drawing of the negative pressure closure therapy tool concerning a 1st embodiment, and (a) is a front view and (b) is an XX arrow line view of (a). 1. It is the XX arrow sectional drawing in FIG. 1 which showed the method for adhering a cover to a body in steps by the sealing means concerning 1st Embodiment. It is a top view of the negative pressure closure therapy device concerning a 2nd embodiment. It is sectional drawing which shows other embodiment of a sealing means, Comprising: (a) is the sealing means comprised using the adhesive material of 2 sheets, Comprising: The peeling sheet protruded from the both ends of the adhesive material, ( b) is formed by bending a single patch. It is a top view of the negative pressure closure therapy tool which can be used as a drainage management tool provided with the discharge port tool.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,1a Negative pressure closure therapy tool 10 Cover 20 Opening part 30 Sealing means 30a Suction part sealing means 31 Gripping part 300 Adhesive material 310 Base material 320 Adhesive layer 330 Release sheet 330a Overhang part 340 Support body 40 Suction part 41 Opening part 42 discharge port 42a plug 42b mouth body 45 supply unit 50 fastener B body T suction tube

  DESCRIPTION OF EMBODIMENTS Hereinafter, a negative pressure closure therapy device and a method for using a negative pressure closure therapy device according to embodiments of the present invention will be described in detail with reference to the drawings as appropriate.

In the description of each embodiment, the same constituent elements are denoted by the same reference numerals, and redundant descriptions are omitted.
(About the first embodiment)
FIG. 1 is a schematic explanatory view showing a negative pressure closure therapy device of the present invention, in which (a) is a plan view and (b) is a cross-sectional view taken along line XX in (a).

In the first embodiment, description will be made with the vertical and horizontal directions defined based on the state of FIG.
≪About negative pressure closure therapy device 1≫
First, the structure of the negative pressure closure therapy device of the present invention will be described.

As shown in FIG. 1 (a), the negative pressure closure therapy device 1 mainly includes a bag-like cover 10 for covering the affected part, an opening 20 for inserting the affected part into the cover 10, and the cover 10. The sealing means 30 provided in the opening part 20 for adhering to the body B, and the suction part 40 for connecting the inside of the cover 10 to a suction source are comprised.
<Cover 10>
The bag-like cover 10 in the first embodiment is for covering the affected part, and is configured by welding the peripheral edges of two films formed in a rectangular shape in plan view of 38 cm long × 30 cm wide, for example. Has been.

  The film of the cover 10 is an impermeable material for liquid and air, and has a flexibility that does not hurt the skin at the time of negative pressure or wearing, and a rigidity that does not break even if it operates while wearing the cover. It is preferable. Moreover, in order to prevent the skin from stuffiness and to keep the wound in a moist state, it is preferable to have appropriate water vapor permeability (moisture permeability).

  Specific film materials include, for example, polyolefins such as polyethylene, low density polyethylene, high density polyethylene, and polypropylene; ethylene / vinyl acetate copolymer (EVA), ethylene / ethyl acrylate copolymer (EEA), and ethylene / methyl. Olefin copolymers such as acrylate copolymer (EMA), ethylene / methyl methacrylate copolymer (EMMA), ethylene / methacrylic acid polymer (EMAA), ethylene / acrylic acid copolymer (EAA); polyvinyl chloride Polyvinylidene chloride; polyamides such as nylon 6 and nylon 66; polyesters such as polyethylene terephthalate and polybutylene terephthalate; polyvinyl alcohol; polyurethane;

  These materials may be used alone or in combination of two or more. In particular, a polyolefin or a chlorinated product thereof, an olefin copolymer, polyvinyl chloride, polyvinylidene chloride, polyurethane, polyester, or polyamide is more preferable.

  The film may be welded by heat welding, ultrasonic welding or high frequency welding, or may be bonded by an adhesive.

  In the first embodiment, the bag-like cover 10 is formed by heat-welding the left and right long edge portions of the periphery of the film and providing the fastener 50 described later on the upper short edge portion. .

  Moreover, in 1st Embodiment, the cover 10 whole is comprised with the transparent polyethylene sheet. However, the present invention is not limited to this, and some or all of them may be opaque. In addition, a visual field can be ensured also about the patient's body B other than an affected part by making the cover 10 transparent.

Furthermore, in the first embodiment, the cover 10 has a single-layer structure in order to reduce the price. However, a multi-layer structure may be used from the viewpoint of imparting strength, deodorizing effect, and adjusting the oxygen permeability.
<Opening 20>
The opening 20 is a hole for inserting the affected part into the bag-shaped cover 10 and communicates with the inside of the cover 10. In the first embodiment, the lower short edge of the film that is not thermally welded corresponds to the opening 20.

In addition, if it is easy to operate when putting the affected part in the cover 10, the width of the opening 20 is not particularly limited, and after the three sides of the film excluding the upper short side edge are welded by thermal welding. The opening 20 may be newly provided by cutting out.
<Sealing means 30>
The sealing means 30 is provided in the opening 20 to fix the cover 10 to the body B. The sealing means 30 in 1st Embodiment is comprised by the two adhesive materials 300, as shown in FIG.1 (b).
[Patch material 300]
In 1st Embodiment, as shown in FIG.1 (b), as the adhesive material 300, on the surface of the base material 310, the adhesive layer 320 formed in the one surface of the base material 310, and the adhesive layer 320, as shown in FIG. The release sheet 330 is provided, and a support 340 that is temporarily attached to the other surface of the substrate 310 and has higher rigidity than the substrate 310.

  In the first embodiment, as shown in FIG. 1, the adhesive material 300 is fixed to the cover 10 using approximately the upper half in the vertical width direction. In this case, the release sheet 330 is provided with a cut (not shown) that can be divided into two in the vertical width direction. By peeling the upper half release sheet 330, the upper half pressure-sensitive adhesive layer 320 is exposed. The upper half of the adhesive material 300 is fixed to the cover 10 via the exposed adhesive layer 320. In addition, the grip portion 31 is formed by bonding the adhesive layers 320 to each other at the left edge of the patch 300.

  In addition, in order to raise the adhesive force of the cover 10 and the adhesive material 300, you may adhere the adhesive material 300 to the cover 10 via a double-sided tape.

The patch 300 may be fixed to the outer surface of the cover 10 or may be fixed to the inner surface.
[Substrate 310]
Examples of the form of the substrate 310 in the first embodiment include plastic films, non-woven fabrics, knitted fabrics, fiber sheets such as woven fabrics, foam sheets, paper, and the like, and these substrates may be used alone. Alternatively, a base material having a laminated structure in which base materials of the same or different types are laminated may be used.

  Examples of plastic film materials include polyurethane; polyester such as polyethylene terephthalate and polybutylene terephthalate; polyamide such as nylon 6 and nylon 66; polyolefin such as polyethylene, low density polyethylene, high density polyethylene, and polypropylene; and ethylene / vinyl acetate. Polymer (EVA), ethylene / ethyl acrylate copolymer (EEA), ethylene / methyl acrylate copolymer (EMA), ethylene / methyl methacrylate copolymer (EMMA), ethylene / methacrylic acid polymer (EMAA), ethylene -Olefin-based copolymers such as acrylic acid copolymer (EAA); polyvinyl alcohol; polyvinyl chloride, polyvinylidene chloride; silicone;

  More preferably, polyurethane, polyester, polyamide or the like having good water vapor permeability and less disturbing insensitive transpiration is preferred.

  These materials may be used alone or in combination of two or more.

  Examples of fiber sheet materials include cellulose fibers such as cotton, viscose rayon, polynosic, copper ammonia rayon, and lyocell, polyester fibers, acrylic fibers, polyamide fibers, polyolefin fibers, polyurethane fibers, and vinylon fibers. Polyvinyl chloride fiber, polyvinylidene chloride fiber and the like can be used.

  These materials may be used alone or in combination of two or more.

  Examples of the foam sheet material include polyolefin, polyurethane, acrylic, chloroprene rubber, and silicone.

  As the paper, conventionally known high quality paper, kraft paper, glassine paper, coated paper and the like can be used.

  The thickness of the substrate 310 is preferably in the range of 10 to 150 μm, and more preferably in the range of 15 to 75 μm. If the thickness is less than 10 μm, the strength of the substrate 310 is not sufficient, and there is a possibility that it will be broken by repeated friction during use. On the other hand, if the thickness is greater than 150 μm, the film becomes bulky and uncomfortable when applied to the body B, and the followability to a curved surface portion may be particularly deteriorated.

As a form of the base material 310 used in the present invention, a transparent or translucent plastic film that has flexibility and stretchability that can follow the application site, that is, the body B, and allows easy observation of the application part is preferable.
[Adhesive layer 320]
As the pressure-sensitive adhesive layer 320 in the first embodiment, various pressure-sensitive pressure-sensitive adhesives can be used, and examples thereof include pressure-sensitive pressure-sensitive adhesives such as acrylic, silicone, urethane, vinyl ether, natural rubber, and synthetic rubber. It is done. Of these, acrylic and silicone are preferred.

  It is more preferable to use a so-called hydrocolloid pressure-sensitive adhesive obtained by adding a hydrophilic polymer compound such as carboxymethyl cellulose, karaya gum, pectin, gelatin, polyvinyl alcohol, sodium polyacrylate to these pressure-sensitive pressure-sensitive adhesives.

  By using a hydrocolloid pressure-sensitive adhesive, sweat, exudate from wounds, and the like can be absorbed, and fogging and pruritus caused by stuffiness can be reduced.

The pressure-sensitive adhesive layer 320 preferably has a thickness of 5 to 500 μm, more preferably 5 to 200 μm. Further, the coating weight of the adhesive layer 320 is preferably in the range of 10 to 500 g / m ^2, the range of 20 to 150 g / m ² is more preferable.

When the thickness and the coating weight of the pressure-sensitive adhesive layer 320 are within this range, an appropriate pressure-sensitive adhesive force is exhibited at the time of application, excellent adhesion to the skin and followability, and good moisture permeability can be obtained.
[Peeling sheet 330]
As the release sheet 330 used in the present invention, a known release paper or release film can be used, and a paper or film surface subjected to a silicone resin treatment or a fluorine resin treatment can be used.
[Support 340]
The support 340 according to the first embodiment may have any hardness that prevents the occurrence of wrinkling of the base material 310 when the base material 310 is affixed. Polyethylene, polypropylene, polyamide, ethylene / acetic acid Vinyl copolymers, plastic materials such as polyester, paper, nonwoven fabric, etc. can be used.

  The support 340 does not necessarily need to cover the entire upper surface of the base material 310 if the base material 310 can be maintained in a fixed state when the base material 310 is pasted. For example, only the peripheral edge of the base material 310 is covered in a window frame shape. And the center part of the base material 310 can also be made into the form which is not coat | covered.

  In addition, as a method of temporarily attaching the support body 340 to the base material 310, well-known methods, such as adhesion | attachment, thermocompression bonding, and temporary attachment by co-extrusion, can be used.

  As shown in FIG.1 (b), the peeling sheet 330 in 1st Embodiment is provided toward the left side edge part with which adhesive layer 320 was pasted together from the right side edge part of the adhesive layer 320. As shown in FIG. The release sheet 330 is folded back on the side where the adhesive layers 320 are bonded to each other (that is, one end in the longitudinal direction of the adhesive material 300), and the end of the folded release sheet 330 is on the right side of the adhesive layer 320. It extends toward the edge and protrudes from the right edge of the pressure-sensitive adhesive layer 320 (that is, the other end in the longitudinal direction of the adhesive material 300).

  Further, in the patch 300 facing each other, the release sheet 330 is provided in a mirror image symmetry with respect to the horizontal plane.

  Here, the end of the protruding release sheet 330 constitutes the protruding portion 330a.

  The length of the protruding portion 330a in the left-right width direction is preferably about 5 mm to 50 mm, more preferably 10 mm to 30 mm.

  The release sheet 330 is preferably mirror-image symmetric with respect to the horizontal plane so as to cover the adhesive layer 320 in the same manner up and down, but is not limited to this and can be changed as appropriate.

  The patch 300 used for the sealing means 30 can ensure moisture permeability, air tightness, and safety among the followability to the body B, moisture permeability, air tightness, and safety of the adhesive to the skin. There is no particular limitation as long as it is present.

The patch 300 is not limited to the configuration shown in the first embodiment, and is provided on the surface of the base material 310, the adhesive layer 320 formed on one surface of the base material 310, and the adhesive layer 320. The release sheet 330 is not particularly limited as long as the release sheet 330 is provided.
<Suction unit 40>
The suction part 40 is for connecting the inside of the cover 10 to a suction source. As shown in FIG. 1A, the suction part 40 is a right side long edge part of the cover 10 and extends in the vertical width direction of the cover 10. It is provided above the center.

  Further, the suction part 40 according to the first embodiment includes an opening 41 communicating with the inside of the cover 10 and a suction part sealing means 30 a provided so as to cover the opening 41. The structure of the suction portion sealing means 30a can be the same as that of the sealing means 30 although the dimensions are different.

  In the first embodiment, when the cover 10 is formed, the opening 41 is formed by not thermally welding a part of the right long side edge of the film, but the present invention is not limited to this. After the three sides of the film excluding the short side edge are welded by thermal welding, a new opening 41 may be provided by notching.

  In the first embodiment, the shape, size, and position of the opening 41 are not particularly limited as long as the tube for connecting to the suction source can be inserted, and can be appropriately changed.

The negative pressure closure therapy device 1 according to the first embodiment preferably further includes a fastener 50 as described below.
<Fastener 50>
The airtight fastener 50 is for facilitating treatment of the affected area by opening the fastener 50 even after the cover 10 is fixed to the body B by the sealing means 30.

  In 1st Embodiment, although provided in the upper side short side edge part of a film, you may provide not only in this but in a long side edge part on either side.

  Further, the configuration of the fastener 50 is not particularly limited as long as it is airtight and resealable. For example, the fastener 50 can be engaged by sliding a protrusion and a groove, an adhesive tape, a surface Examples include fasteners.

  In addition, in 1st Embodiment, although the fastener 50 was provided in the upper side short side edge part of the film, it is not restricted to this, You may provide in the center of a film. Thereby, since the fastener 50 comes on a wound, even if it is a case where the cover 10 adheres to skin, the treatment of an affected part can be performed.

  Moreover, it is preferable that the negative pressure closure therapy device 1 according to the first embodiment further includes a fastener opening holding member (not shown).

  Here, the fastener opening holding member is a member for maintaining the shape of the opening of the fastener 50 when the fastener 50 is opened, and is, for example, a member having a rectangular shape in a plan view of 1 cm vertically and 16 cm left and right. .

  Specifically, a configuration is provided directly below the fastener 50 and extending in the left-right width direction, and one is provided on each of the upper side and the lower side of the fastener 50.

In addition, the fastener opening holding member in the present embodiment is configured to be detachably provided around the fastener 50 via an adhesive, but is not limited thereto, such as adhesion, adhesion, and welding. It may be installed by a fixing means, or may be fixed by covering with an adhesive tape from above the fastener opening holding member.
≪How to use negative pressure closure therapy tool 1≫
Next, a method for using the negative pressure closure therapy device 1 will be described with reference to FIG. 1 and FIG. FIG. 2 is a cross-sectional view taken along the line XX in FIG. 1, and is a view showing stepwise a method for fixing the cover 10 to the body B by the sealing means 30.

  First, an absorption pad for covering the wound is disposed on the affected part. Then, one end of the suction tube is placed thereon, and the other end is pulled out from the opening 41 of the suction unit 40 and connected to a suction pump (not shown).

  By disposing the absorbent pad on the affected area, it serves as an appropriate cushion to alleviate physical stimulation from the cover 10 that occurs during decompression, and efficiently absorbs exudate. Moreover, uniform pressure reduction can be performed by being porous. Further, the film of the cover 10 may stick to each other under negative pressure, and the suction operation cannot be performed efficiently by the suction tube. However, since the space can be secured by providing the absorption pad, the suction operation is performed efficiently. be able to.

  Here, as the absorbent pad, fiber materials such as knitted fabrics, woven fabrics, and nonwoven fabrics, foam materials, and the like can be used. Further, as the fiber material and the foam material, the same material as the base material 310 of the patch 300 can be used.

  The suction tube is preferably disposed on the absorption pad or in the vicinity of the affected part, but the position of the suction tube is not particularly limited as long as the exudate is sucked and the affected part is located under a suitable negative pressure.

  Moreover, as a suction tube, you may use what provided the some opening in the tube side surface.

  Next, the affected part is inserted into the cover 10 through the opening 20, and the cover 10 is fixed to the body B.

  More specifically, after inserting the affected part into the cover 10, the medical staff pulls the protruding part 330 a protruding from one side of the patch 300 while grasping the grip part 31, and gradually removes the release sheet 330 from the adhesive layer. It peels from 320 (refer Fig.2 (a)).

  At this time, by providing a placement mark (not shown) of the affected part or body B on the cover 10 or the sealing means 30, the affected part can be guided to an appropriate position. The placement mark is, for example, a marking that displays an appropriate position range of the top, bottom, left, and right of the hand, and various forms such as a simple linear mark and a figure shape mark can be adopted as necessary.

  As shown to Fig.1 (a), since the sealing means 30 concerning 1st Embodiment is provided with the overhang | projection part 330a which the peeling sheet 330 protruded from the right side edge part of the adhesive material 300, it is easy to pick up the peeling sheet 330 .

  Further, as shown in FIG. 1B, the release sheets 330 are provided mirror-symmetrically with respect to the horizontal plane, so that the protruding portions 330a of the release sheets 330 can be pulled simultaneously. Thereby, since the peeling sheet 330 provided in mirror image symmetry can be peeled in the same way, even a medical worker can easily apply it and can improve workability.

  The medical staff continues to pull the release sheet 330 gradually while peeling the adhesive layer 320 together so that air does not enter between the exposed adhesive layers 320. (See FIG. 2 (b)).

  By doing in this way, since the peeling sheet 330 can be peeled off gradually sticking the adhesive layer 320 to the body B, generation | occurrence | production of wrinkles can be prevented.

  Finally, the cover 10 can be brought into close contact with the body B by removing all of the release sheet 330 and closely contacting the arm so as to wrap the arm (see FIG. 2C). Thereafter, by removing the temporarily attached support 340 (see FIG. 2D), the followability to the body B can be improved.

  By adhering to the body B as described above, generation of wrinkles can be prevented and airtightness can be ensured. Moreover, there is no possibility of the adhesive layers 320 sticking to each other at an unexpected location as in the case of peeling at a time. Thereby, the increase in the cost accompanying re-sticking can be suppressed.

  Furthermore, conventionally, when the film is folded to fit the thickness of the limbs and then sealed with an adhesive tape, congestion and pain have occurred depending on the thickness and location of the film. Moreover, when it stopped with a rubber band, the blood flow stopped, preventing early healing.

  However, as in the first embodiment, the cover 10 is fixed to the body B by the sealing means 30, thereby preventing the occurrence of congestion and pain and does not hinder early healing.

  Next, the suction tube pulled out from the opening 41 of the suction unit 40 is similarly sealed with the suction unit sealing means 30a.

  Here, “sealed” means that there is sufficient airtightness to maintain the inside of the cover 10 at a lower pressure than the surroundings when sucked by a suction pump. good.

  In the first embodiment, since the length of the suction tube can be sufficiently adjusted and then fixed by the suction portion sealing means 30a, there is no possibility that the length of the suction tube becomes insufficient. Moreover, since it can contact | adhere so that the circumference | surroundings of a suction tube may be wrapped, airtightness can also be ensured.

  Then, the other end of the drawn suction tube is connected to a suction pump (not shown) to perform suction. The negative pressure at this time is preferably reduced from atmospheric pressure to about 125 mmHg, but is not limited to this, and can be changed as appropriate by the judgment of the medical staff.

  In addition, when the negative pressure is temporarily released and the absorbent pad is replaced or the affected area is treated, the fastener 50 (see FIG. 1A) is opened and the cover 10 is lifted up easily. it can.

  At this time, it is possible to make the cover 10 easy to beat by making the cover 10 bellows.

  Thereby, when the cover 10 is lifted up, the inner surface of the cover 10 does not touch the outside, so that the inner surface of the cover 10 can be prevented from being contaminated. Further, when the inside of the cover 10 is contaminated, it is possible to prevent the internal contamination from expanding to the outside by lifting the cover 10.

  Further, it is economical because the negative pressure closure therapy device once attached does not need to be replaced every time the absorbent pad is replaced or the affected area is treated.

  In addition, in 1st Embodiment, it is good also as a structure which provided the fastener 50 in the center of the film and was provided with the fastener opening holding member.

  At this time, since the fastener opening holding member is harder than the film material of the cover 10 (because there is stiffness), the opening shape of the fastener 50 can be easily held.

  Thereby, since the opening shape of the fastener 50 can be hold | maintained, the treatment of a wound can be performed with both hands, or it can make it easy to examine an affected part.

  The shape of the fastener opening holding member can be appropriately changed to a rectangular shape, a linear shape, a wavy shape, or the like.

  In the method of using the negative pressure closure therapy device 1 in which the fastener 50 is provided at the center of the film, the affected part is inserted into the cover 10 through the opening 20, and the cover 10 is fixed to the body B by the sealing means 30. Then, the fastener 50 provided at the center of the film is opened and placed on the absorbent pad wound.

  After the absorption pad is placed on the affected area, the other end of the suction tube, one end of which is connected to the suction source, is drawn from the opening 41 of the suction part 40 and placed on the absorption pad. Then, the fastener 50 is closed. At this time, the fastener 50 can be sealed and closed by pressing the fastener 50 and the fastener opening holding member with a finger.

After that, it is as described above.
(About the second embodiment)
In the first embodiment, the negative pressure closure therapy device 1 for the extremities of the extremities has been described. However, the negative pressure closure therapy device 1a according to the second embodiment shown in FIG. 3 is provided with two openings 20. It can be a sleeve. Thereby, it can be used also for the affected part in joints, such as a knee and an elbow.

  Hereinafter, the sleeve-shaped negative pressure closure device 1a will be described with reference to FIG.

  As shown in FIG. 3, the second embodiment is almost the same as the structure in the first embodiment, but is characterized in that the opening 20 is provided at the upper and lower short edge portions and the sealing means 30 is provided in each of the openings. And Moreover, the fastener 50 is provided in the left long side edge part.

  With such a configuration, it can be used only for joint areas such as the elbows and knees, so there is no need to cover the tips of the hands and feet. Thereby, since the operation | movement about the hand and leg which are not an affected part is not restrict | limited, a patient's burden can be eased.

  In addition, since the fastener 50 is provided on the left long side edge, the negative pressure can be temporarily released, and the absorbent pad can be replaced and the affected area can be treated while the negative pressure closure therapy device 1a is attached. This is economical because the negative pressure closure therapy device 1a once attached does not need to be replaced every time the absorption pad is replaced or the affected part is treated.

  Next, another embodiment of the sealing means 30 will be described.

  4 is a cross-sectional view of a different embodiment corresponding to FIG. 1B, which is a cross-sectional view taken along the line XX of FIG.

  The modification of the sealing means shown in FIG. 4 can be used as appropriate as the sealing means 30 and the suction part sealing means 30a in the first and second embodiments.

  FIG. 4A is a sealing means using two sheets of adhesive material 300, and the release sheet 330 is folded back at the approximate center of the adhesive layer 320, and the end portions of the folded release sheet 330 are connected to both ends of the adhesive material 300. It overhangs from the part. Thus, the projecting portion 330a is provided at both ends. Further, in the patch 300 facing each other, the release sheet 330 is provided in a mirror image symmetry with respect to the horizontal plane.

  In such a configuration, the release sheet 330 can be easily peeled by pinching the support members 340 on the release sheet 330 side to be peeled with fingers and pulling the release sheet 330 on the other side by the overhanging portion 330a. Note that the side of the release sheet 330 that is not peeled off corresponds to the grip portion.

  By setting it as such a structure, a body (for example, arm) can be easily fixed to the approximate center of the patch 300. FIG.

  FIG. 4B shows the configuration of the sealing means when one sheet of adhesive material 300 is bent and used.

  More specifically, the adhesive material 300 is bent in a U shape so that the adhesive layers 320 face each other. And the peeling sheet 330 is provided toward the part (left side in this figure) bent from the edge (right side in this figure) of the adhesive layer 320. As shown in FIG. The release sheet 330 is folded back at the folded portion, and the end of the folded release sheet 330 extends toward the end of the pressure-sensitive adhesive layer 320, and the end of the pressure-sensitive adhesive layer 320 (that is, the adhesive material 300). Overhangs from the longitudinal end). Here, the end of the protruding release sheet 330 constitutes the protruding portion 330a.

  In the pressure-sensitive adhesive layer 320 facing each other, the release sheet 330 is provided in a mirror image symmetry with respect to the horizontal plane.

  By adopting such a configuration, the sealing means 30 can be configured by a single adhesive material 300, so that the number of manufactured parts and the number of manufacturing processes can be reduced. Thereby, manufacturing cost can be reduced.

  In addition, as shown in FIG.4 (b), you may stick the adhesive layer 320 of the center of the adhesive material 300 together beforehand, and may form the holding part 31. FIG.

  As described above, as another embodiment of the negative pressure closure therapy device, the configuration of the sealing means 30 provided in the opening 20 and the suction portion sealing means 30a provided in the opening 41 of the suction portion 40 are used. These configurations may be the same configuration, or may be a combination of configurations of the sealing means 30 of different forms shown in FIGS. 1 and 4.

  In the present invention, the negative pressure closure therapy device 1 provided with the sealing means 30 may be used in the following manner.

  As shown in FIG. 5, a discharge port 42 may be provided as the suction portion 40 instead of the sealing means 30 a (see FIG. 1).

  Here, the discharge mouthpiece 42 is comprised from the stopper 42a and the mouthpiece main body 42b. The stopper 42a is detachable from the mouthpiece main body 42b. Moreover, the mouthpiece main body 42b and the suction tube T provided in the cover 10 are detachably provided.

  Since exudate can keep the affected area in a moderately moist environment, it is useful for early healing.However, excessive exudate, etc. becomes a hotbed for breeding of miscellaneous bacteria, etc., and is known to hinder early healing. It has been.

  Therefore, the configuration shown in FIG. 5 is used as a negative pressure closure therapy device when the amount of exudate or the like is large, and when the amount of exudate or the like is small, the suction tube T provided in the cover 10 is used. Can be used as a drainage management tool.

  When negative pressure closure therapy is performed, excess exudate can be eliminated by connecting a catheter connected to a suction source to the mouthpiece main body 42b via a connector.

  On the other hand, when used as a drainage management tool, one end of the tube is directly connected to the drainage outlet main body 42b, and a drainage bag is connected to the other end, so that exudate in the cover 10 can be removed by natural fall. A structure that leads to a drainage bag (not shown) may be used. When the drainage bag is not connected, exudate accumulated in the cover 10 can be discharged to the outside by removing the stopper 42a of the discharge port 42 from the discharge port main body 42b.

  In addition, pressure ulcers and the like cannot exude exudate from necrotic tissue, and the affected area cannot be maintained in a moist environment. Therefore, there is a problem that healing is not promoted.

  Therefore, after the necrotic tissue is removed by surgery, healing can be promoted by placing the affected part in a wound dressing and maintaining a moist environment.

  As a method for creating a humid environment, as shown in FIG. 5, a suction unit 40 and a supply unit 45 are provided, fluid such as physiological saline and medicine is supplied from the supply unit 45, and fluid is sucked and discharged from the suction unit 40. By adopting such a configuration, a humid environment can be created. In the configuration illustrated in FIG. 5, the suction unit 40 and the supply unit 45 have the same configuration, and thus the description of the supply unit 45 is omitted.

  As a result, when the amount of drainage is large, the drainage is sucked and discharged from the suction unit 40, and when the affected part is dry, a fluid such as physiological saline is supplied from the supply unit 45 to create a moist environment. It is also possible. Moreover, since the necrotic tissue can be washed away by flowing physiological saline or the like, early healing can be achieved.

  Further, the same fluid may be supplied to the wound again by filtering and sterilizing the sucked fluid using a filter or the like. By adopting such a configuration, it is possible to remove dead tissue and the like contained in the fluid and to supply the cell growth factor and the like contained in the fluid to the affected area again, thereby promoting wound healing. It is considered possible.

  At this time, the fluid may be heated and supplied.

  In addition to providing the supply unit 45 in the negative pressure closure therapy device 1, a plurality of catheters may be inserted into the suction unit 40. The fluid is not limited to a liquid, and may be a gas such as mist as necessary.

  In the configuration shown in FIG. 5, a backflow prevention valve may be provided between the suction tube T and the discharge port device 42. Thus, even if the suction source is removed after suction by the suction source, the inside of the cover 10 can be kept at a negative pressure.

  Moreover, when performing negative pressure closure therapy, it is preferable that rehabilitation can be performed in the cover 10 so that joints and the like do not become stiff.

  For example, the discharge port body 42b of the suction unit 40 is closed with the stopper 42a, and the fluid is supplied from the supply unit 45. Thereby, the inside of the cover 10 can be pressurized. Then, by maintaining the inside of the cover 10 in a pressurized state, the cover 10 can be easily rehabilitated without hindering movement during rehabilitation.

  The pressure in the cover during rehabilitation is preferably atmospheric pressure or positive pressure.

  Moreover, in this invention, it is good also as a structure which adjusts the suction pressure of a suction source by using a skin tissue perfusion pressure measuring device. In the present invention, there is a possibility that blood flow may be inhibited by reducing the pressure inside the cover 10 and sticking the cover 10 to the body other than the affected part. In such a case, it is preferable to adjust the suction pressure according to the blood flow. For example, it is preferable that the suction pressure is reduced or the suction is stopped so that the perfusion rate exceeds 0.1% according to the well-known formula (1).

    Perfusion rate = (Doppler shift amount) / (total laser light) (1)

  Here, the perfusion rate is the perfusion rate of the skin microcirculation. This perfusion flow of the skin microcirculation is detected by the laser Doppler sensor as the movement of red blood cells existing up to 1.5 mm of the skin surface.

  As a principle, it is utilized that laser light is reflected with Doppler shift (phenomenon) by red blood cells flowing through the microcirculation when laser light is irradiated. The ratio of this Doppler shifted laser light to the total reflected laser light is used as an index of skin perfusion pressure (SPP) as skin microcirculation perfusion rate.

  The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and can be appropriately changed without departing from the spirit of the present invention. For example, the suction portion may be provided on the cover surface, and a known catheter connector may be provided there. By using the catheter connector, the catheter connector can be adjusted even during use.

  Further, the present invention is not limited to use as a negative pressure closure therapy tool or a drainage management tool, and can be widely used as a wound management tool. Furthermore, by providing the sealing means at the opening of the cover that does not include a suction part or a fastener, it can also be used as a waterproof cover for preventing the affected part from getting wet with water during bathing.

Industrial applicability

  According to the present invention, in the negative pressure closure therapy device, the pressure-sensitive adhesive layer can be easily adhered to the body without causing wrinkles. Therefore, inflow of outside air can be prevented, and a suitable negative pressure can be maintained.

  Further, when using a negative pressure closure therapy device, the release sheet can be gradually peeled off from the pressure-sensitive adhesive layer, so that the pressure-sensitive adhesive layers do not adhere at unintended locations. Therefore, it is easy to work and can be handled by one person.

  Furthermore, an increase in cost associated with re-sticking can be suppressed. In addition to the negative pressure closure therapy device, the present invention can be used for the positive pressure closure therapy device, the drainage management device, and the like.

Claims (16)

A bag-like cover for covering the affected area; an opening for inserting the affected area into the cover; a sealing means provided in the opening for securing the cover to the body; and an interior of the cover A negative pressure closure therapy device comprising: a suction portion for connecting a suction source to the suction source;
The sealing means comprises a patch comprising at least a base material, an adhesive layer formed on one surface of the base material, and a release sheet provided on the surface of the adhesive layer,
A negative pressure closure therapy device, wherein at least a part of the release sheet projects from the base material. A bag-like cover for covering the affected area; an opening for inserting the affected area into the cover; a sealing means provided in the opening for securing the cover to the body; and an interior of the cover A negative pressure closure therapy device comprising: a suction portion for connecting a suction source to the suction source;
The pressure-sensitive adhesive layer faces the adhesive material, which includes at least a base material, a pressure-sensitive adhesive layer formed on one surface of the base material, and a release sheet provided on the surface of the pressure-sensitive adhesive layer. The structure is arranged as follows,
The patch has a longitudinal direction and a short direction,
The pressure-sensitive adhesive layer is covered by at least two release sheets,
The negative pressure closure therapy device, wherein the release sheet is provided along the longitudinal direction of the pressure-sensitive adhesive layer and folded back, and an end portion of the folded release sheet projects from one end in the longitudinal direction. A bag-like cover for covering the affected area; an opening for inserting the affected area into the cover; a sealing means provided in the opening for securing the cover to the body; and an interior of the cover A negative pressure closure therapy device comprising: a suction portion for connecting a suction source to the suction source;
The sealing means includes two adhesives each including at least a base material, an adhesive layer formed on one surface of the base material, and a release sheet provided on a surface of the adhesive layer. It is a structure arranged so that they face each other,
The two adhesives have a longitudinal direction and a lateral direction, and the adhesive layers are bonded to each other at one end in the longitudinal direction,
The release sheet is also provided from one end to the other end in the longitudinal direction of the patch, and is folded at one end, and an end portion of the folded release sheet projects from the other end in the longitudinal direction of the patch. Negative pressure closure therapy device characterized by that. A bag-like cover for covering the affected area; an opening for inserting the affected area into the cover; a sealing means provided in the opening for securing the cover to the body; and an interior of the cover A negative pressure closure therapy device comprising: a suction portion for connecting a suction source to the suction source;
The sealing means includes two adhesives each including at least a base material, an adhesive layer formed on one surface of the base material, and a release sheet provided on a surface of the adhesive layer. It is a structure arranged so that they face each other,
The pressure-sensitive adhesive layer is covered with at least two release sheets,
The release sheet is also provided from the end of the adhesive material toward the center and is folded back at substantially the center, and the end portions of the release sheet folded out from both ends of the adhesive material. Negative pressure closure therapy device. A bag-like cover for covering the affected area; an opening for inserting the affected area into the cover; a sealing means provided in the opening for securing the cover to the body; and an interior of the cover A negative pressure closure therapy device comprising: a suction portion for connecting a suction source to the suction source;
The sealing means comprises a single adhesive material comprising at least a base material, a pressure-sensitive adhesive layer formed on one surface of the base material, and a release sheet provided on the surface of the pressure-sensitive adhesive layer. It is a structure that is folded so that they face each other,
The patch is provided with a longitudinal direction and a lateral direction, and is covered with at least two release sheets,
The release sheet is provided toward the folded portion from the longitudinal end of the patch, and is folded back at the folded portion, and the end of the folded release sheet projects from the longitudinal end of the patch. A negative pressure closure therapy device characterized by comprising: The negative pressure closure therapy device according to any one of claims 1 to 5, wherein the bag-like cover has a sleeve shape. The negative pressure closure therapy device according to any one of claims 1 to 6, wherein an airtight fastener is provided on the cover. The negative pressure closure therapy device according to any one of claims 1 to 7, wherein a placement mark for an affected area is provided on the negative pressure closure therapy device. 9. The negative pressure closure therapy device according to claim 1, wherein a grip portion is provided on the sealing means. The negative pressure closure therapy device according to any one of claims 1 to 9, wherein the suction part includes the sealing means according to any one of claims 1 to 5. . A sealing means used for a bag-like cover for covering an affected area,
The sealing means comprises a patch comprising at least a base material, an adhesive layer formed on one surface of the base material, and a release sheet provided on the surface of the adhesive layer,
One end of the release sheet projects from the base material. A sealing means used for a bag-like cover for covering an affected area,
The pressure-sensitive adhesive layer faces the adhesive material, which includes at least a base material, a pressure-sensitive adhesive layer formed on one surface of the base material, and a release sheet provided on the surface of the pressure-sensitive adhesive layer. The structure is arranged as follows,
The patch has a longitudinal direction and a short direction,
The pressure-sensitive adhesive layer is covered by at least two release sheets,
The sealing means, wherein the release sheet is provided along the longitudinal direction of the pressure-sensitive adhesive layer and folded, and an end portion of the folded release sheet projects from one end in the longitudinal direction. A sealing means used for a bag-like cover for covering an affected area,
The sealing means includes two adhesives each including at least a base material, an adhesive layer formed on one surface of the base material, and a release sheet provided on a surface of the adhesive layer. It is a structure arranged so that the layers face each other,
The two adhesives have a longitudinal direction and a lateral direction, and the adhesive layers are bonded to each other at one end in the longitudinal direction,
The release sheet is also provided from one end to the other end in the longitudinal direction of the patch, and is folded at one end, and an end portion of the folded release sheet projects from the other end in the longitudinal direction of the patch. Sealing means characterized in that. A sealing means used for a bag-like cover for covering an affected area,
The sealing means includes two adhesives each including at least a base material, an adhesive layer formed on one surface of the base material, and a release sheet provided on a surface of the adhesive layer. It is a structure arranged so that they face each other,
The pressure-sensitive adhesive layer is covered with at least two release sheets,
The release sheet is also provided from the end of the adhesive material toward the center and is folded back at substantially the center, and the end portions of the release sheet folded out from both ends of the adhesive material. Sealing means. A sealing means used for a bag-like cover for covering an affected area,
The sealing means comprises a single adhesive material comprising at least a base material, a pressure-sensitive adhesive layer formed on one surface of the base material, and a release sheet provided on the surface of the pressure-sensitive adhesive layer. It is a structure that is folded so that they face each other,
The patch is provided with a longitudinal direction and a lateral direction, and is covered with at least two release sheets,
The release sheet is provided toward the folded portion from the longitudinal end of the patch, and is folded back at the folded portion, and the end of the folded release sheet projects from the longitudinal end of the patch. A negative pressure closure therapy device characterized by comprising: The sealing means according to any one of claims 11 to 15, wherein a bag-like cover for covering the affected part has a sleeve shape.

Images