JP3204769U - Skin opening closure device - Google Patents

Abstract

A skin opening closing device that can be used reliably and stably. A pair of generally identical closure members (101) each having an attachment base (109) having an attachment mechanism on a first side, a standoff assembly attached to a second side of the attachment base, and a first A toothed pull tab 113 having an end 115 and a second end 118 and coupled to the standoff assembly and defining a longitudinal axis. The stand-off assembly includes a pull tab attachment portion to which a first end of the pull tab is fixed, and a concave connection element that receives and joins the pull tab of the other closing member in use. The attachment base includes a stand-off attachment portion 131 to which the stand-off assembly is attached, a plurality of attachment sheets 132 arranged on the opposite side of the pull-tab of the stand-off attachment portion, and between each attachment sheet and the stand-off attachment portion. And a plurality of longitudinal cross-linking portions 133 disposed in the. [Selection] Figure 2

Description

  The present invention provides a skin opening closure device.

  Closure of skin openings (eg surgical cuts, unexpected tears or wounds) is very important for minimizing the risk of infection and optimal healing of the wounds and cuts. And minimizing these infection risks and optimal healing, such as wounds, all require that the wound be closed quickly and that the skin edge be carefully brought into close proximity. And in order to close a skin opening or a wound, the mechanism which brings together the both sides of a skin opening, promotes healing, and reduces the formation of scar tissue is required.

  In recent years, there are mainly invasive closure methods such as suture closure and staple closure as skin opening closure methods. Such a method has the advantage of being inexpensive, but causes double damage to the skin, which is not only aesthetic but also greatly increases the risk of wound infection.

  Recently, various different types of non-invasive closure methods have emerged, such as glue closure, non-steple closure, and the like. These non-invasive closure methods reduce the harmful effects of the invasive closure method to some extent, but cannot achieve a satisfactory closure effect.

  As an example of the above-described non-invasive closure method, a clasp type skin opening occluder is known.

  FIG. 7 is a bottom view of a closing member of a conventional skin opening obturator. The skin opening obturator has two identical closure members, each closure member having a base 209, as shown in FIG. Below the base 209, there is an attachment mechanism (not shown) attached to the skin. The base 209 includes an adhesion sheet 350 and a standoff adhesion part 351. A bridging portion 352 is provided between the adhesion sheet 350 and the standoff adhesion portion 351. Standoff assembly 211 is attached to base 209. One end of the pull tab 205 is fixed to the standoff assembly 211, and the other end extends to the pull tab housing portion of the other closing member. In use, pulling the pull tabs 205 of the two closure members outward moves the closure members toward each other to bring the skin on both sides of the wound together. When the standoff assemblies 211 of these closing members come into contact with each other, the skin opening is closed.

  This clasp type skin opening obturator fundamentally avoids double damage to skin and superficial subcutaneous tissue, does not require traditional skin penetration fixation method, ensures skin integrity on both sides of wound and avoids contamination it can. However, there are still problems with this clasp-type skin opening obturator. When used in areas with high tension (for example, knees, elbow joints, ankle joints, etc.), this single-adhesive sheet-type skin opening occluder receives high skin tension caused by muscle movements at these areas. Therefore, relative slip occurs between the attachment sheet and the attachment mechanism, and the skin opening occluder is likely to fall off.

[Content of device]
Therefore, there is a need for an improved skin opening closure device that can be used reliably and stably.

  In one embodiment of the present invention, a skin opening closure device comprising a pair of generally identical closure members, each of said closure members having an attachment base fixed to the skin with an attachment mechanism on a first side; A standoff assembly attached to the second side of the attachment base, a toothed pull tab having a first end and a second end and connected to the standoff assembly and defining a longitudinal axis. The standoff assembly includes a pull tab attachment portion to which a first end of the pull tab is fixed, and a concave connection element capable of receiving and joining the pull tab of the other closing member in use, and the attachment base portion. A standoff attachment portion to which the standoff assembly is attached, a plurality of attachment sheets disposed on the opposite side of the pulloff tab of the standoff attachment portion, and a plurality of longitudinal bridges It comprises a portion, to provide a skin opening closure device and a plurality of bridge portions which are disposed between the longitudinal cross section each respectively attached sheet and standoff attachment.

  According to another embodiment of the present invention, the length of the stand-off attachment portion is at least twice the length of the stand-off assembly in the direction perpendicular to the longitudinal axis of the pull tab. The assembly has a dimension of about 8.4 mm and the standoff attachment has a dimension of about 17.6 mm.

  According to another embodiment of the present invention, the bridging part further comprises a lateral bridging part for connecting adjacent adhering sheets, and the lateral bridging part has a size larger than that of the standoff adhering part and the adhering sheet. Small and bendable.

  According to another embodiment of the present invention, two or more transverse cross-linking portions are formed between two adjacent adhesive sheets, and the two adjacent adhesive sheets and the two or more lateral cross-linking portions are open. Form.

  According to another embodiment of the present invention, a protective layer is attached to the upper side of the attachment base, and preferably, the protective layer is a medical adhesive tape.

  According to another embodiment of the present invention, the skin opening closure device is made of a biodegradable polymer. The attachment mechanism includes at least one of a hook and an adhesive.

  According to another embodiment of the present invention, the stand-off attachment portion has a rectangular shape, and the plurality of attachment sheets are all rectangular and extend so as to be parallel to each other.

  According to another embodiment of the present invention, the corners of the standoff attachment part and the attachment sheet are rounded.

  According to another embodiment of the present invention, the stand-off assembly is disposed approximately in the middle of the stand-off attachment portion in a direction perpendicular to the longitudinal axis of the pull tab.

  According to another embodiment of the present invention, the plurality of adhesive sheets are two adhesive sheets.

FIG. 1 is a perspective view of a closing member of a skin opening closing device according to the present invention. FIG. 2 is a bottom view of the closing member of the skin opening closing device according to the present invention. FIG. 3 is a front view of a closing member of the skin opening closing device according to the present invention. FIG. 4 is a plan view of the closing member of the skin opening closing device according to the present invention. Fig.5 (a) is sectional explanatory drawing of the skin opening closure apparatus based on this invention. FIG. 5B is a plan view of a state in which the skin opening closing device according to the present invention is packaged. FIG. 6A is an explanatory diagram of a process of using the skin opening closing device according to the present invention. FIG. 6B is an explanatory diagram of a process of using the skin opening closing device according to the present invention. FIG. 7 is a bottom view of a closing member of a conventional skin opening obturator.

[Specific Embodiment]
The embodiments of the present invention will be more easily understood with reference to the following detailed description in conjunction with the drawings.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.
1 to 4 show a closing member of a skin opening closing device according to the present invention.
Overall structure
The skin opening closing device according to the present invention is manufactured from various materials. Such materials include, but are not limited to, plastics, metals, polypropylene, high density polypropylene, other polymers or thermoplastic materials, or combinations thereof. The skin opening closure device comprises a pair of generally identical closure members 101. The closing member 101 includes an attachment base 109 having an attachment mechanism on the first side (for example, the lower side). The attachment mechanism is for securing the attachment base 109 to the skin or other tissue (without limitation). An adhesive can be used as the adhesion mechanism. The adhesive is designed so that the user has time to make small installation adjustments before being adhered to the skin surface. The time range may be about 10 seconds to about 3 minutes, preferably about 1 minute. The pressure sensitive adhesive includes, but is not limited to, a pressure sensitive pressure sensitive adhesive. In other examples, the attachment mechanism may comprise one or more hooks to secure the attachment base to the skin or other tissue.

  The standoff assembly 111 is attached to the second side of the attachment base 109 of each closure member 101. Pull tab 113 is coupled to standoff assembly 111 and defines a longitudinal axis and has a first end 115 and a second end 118. The standoff assembly 111 includes a pull tab attachment portion 124. The first end 115 of the pull tab 113 is fixed to the pull tab attaching portion 124. Preferably, the pull tab 113 has a tapered shape that gradually decreases toward the longitudinal axis in the vicinity of the second end portion 118. The taper-shaped angle is preferably about 5 °.

  The standoff assembly 111 further includes a concave connection element 123. The concave connecting element 123 accommodates and joins the pull tab 113 of the other closing member. When the pair of closing members 101 are joined, the pull tab 113 of one closing member 101 penetrates the concave connection element 123 of the other closing member 101. The pull tab 113 has a tooth-shaped member 125 raised from its upper surface. When the pull tab 113 enters the mating concave connection element 123, the concave connection element 123 prevents the tooth profile member 125 penetrating the concave connection element 123 from retreating. The concave connection element 123 of each closure member 101 may have a puller block mechanism configured to lock the pull tab 113 in place.

  When pulling the pull tab 113 penetrating the concave connecting element 123 of the other closing member 101, the two closing members 101 move toward each other, so that the edge of the skin opening to which the attachment base 109 is attached moves toward each other. To do. When the pull tab 113 is further pulled, the standoff assemblies 111 of the closing member 101 basically come into contact with each other at the contact position 130. Then, each stand-off assembly 111 rotates around the axis of the contact position 130. As a result, the corresponding portion of the bottom surface of each attachment base 109 is pulled up, leading to a valgus of the tissue edge that defines the skin opening. In addition, the said corresponding part has an adhesive coat layer and is adhere | attached on skin or another structure | tissue during use. Further, in order to promote the valgus of the wound edge, it is preferable that the pull tab 113 is disposed at the lower third of the height of each standoff assembly 111, and the contact position 130 is the height of each standoff assembly 111. It is preferable to be arranged at the upper third position.

  It is preferred that the size of the skin opening to be treated is smaller than the length of the pull tab. On the other hand, with respect to a skin opening larger than the length of the pull tab, the closing member is applied to both sides of the opening manually so that the pull tab and the concave connecting element in the other closing member are allowed to join. May be collected.

  Depending on the type of adhesive used, the closure device will peel off naturally within a period of about 7-10 days. Instead, a solvent may be added to the adhesive to achieve faster removal of the closure device.

Adhesive base
Hereinafter, the specific structure of the adhesion base will be described with reference to FIG.

  The attachment base 109 of the closure member 101 may be porous for tissue respiration and tissue fluid drainage. Human tissue, unlike many other mammals, breathes and produces fats and moisture. This may lead to early displacement and movement of the device, leading to device expiration. However, this problem can be overcome by making the attachment base 109 porous. For example, the attachment base 109 can be made of a porous material and / or can include one or more predetermined holes 250 of critical mass. As a result, tissue respiration and tissue fluid and / or gas discharge are allowed without affecting the stickiness of the device.

  As shown in FIG. 2, the adhesion base 109 includes a standoff adhesion part 131, a plurality of adhesion sheets 132, and a plurality of bridging parts.

  In a preferred embodiment, the stand-off attachment part 131 has a rectangular shape, and the long side thereof extends so as to be orthogonal to the longitudinal axis direction of the pull tab. The standoff assembly 111 is disposed approximately in the middle of the standoff attachment portion 131 in the long side direction of the standoff attachment portion 131. One end of the stand-off assembly 111 extends from one end of the stand-off attachment part 131 and the other end is retracted from the other end of the stand-off attachment part 131 by a distance in the longitudinal axis direction of the pull tab. In the direction perpendicular to the longitudinal axis of the pull tab, the dimension of the standoff attachment part 131 is longer than the dimension of the standoff assembly 111, and preferably is twice or more the dimension of the standoff assembly 111. More preferably, the dimension of the standoff assembly 111 is about 8.4 mm, and the dimension of the standoff attachment portion 131 is about 17.6 mm. Moreover, you may round with respect to the corner | angular part of a standoff adhesion part.

  The plurality of adhesion sheets 132 extend so as to be parallel to each other, and are disposed on the opposite side of the standoff adhesion part 131 from the pull tab. Each adhesion sheet 132 has a rectangular shape, and the long side thereof extends so as to be parallel to the longitudinal axis direction of the pull tab. In the direction perpendicular to the longitudinal axis of the pull tab, the total size of the adhesive sheet is smaller than the size of the standoff attachment and larger than the size of the standoff assembly. Moreover, you may round with respect to the corner | angular part of an adhesion sheet.

  The bridging portion includes a plurality of longitudinal bridging portions 133. The plurality of longitudinal cross-linking portions 133 are respectively disposed between the adhesion sheets 132 and the standoff adhesion portions 131. In a preferred embodiment, the bridging portion further comprises a lateral bridging portion 134 for connecting adjacent adhering sheets 132. Since the longitudinal cross-linking portion 133 and the horizontal cross-linking portion 134 are smaller in size than the standoff adhering portion 131 and the adhering sheet 132, they are more easily curved. Thus, when the wound is closed with the skin opening closure device, the tissue edge of the skin opening when the standoff assembly 111 of the closure member 101 makes a basic contact at the contact position 130 and rotates about the axis of the contact position 130. Since the valgus of the skin opening can be more easily realized, the tensile force required to pull the pull tab is reduced, and the valgus to the outside of the tissue edge of the skin opening is promoted, which is advantageous for healing.

  As shown in FIG. 2, in the preferred embodiment of the present invention, two adhesion sheets 132 are provided on the adhesion base 109. Two lateral cross-linking portions 134 are provided between the adhesive sheets 132. The two adjacent adhesion sheets 132 and the two lateral cross-linking portions 134 form a rectangular frame, and an opening 135 is formed in the middle of the rectangular frame. However, the present invention is not limited to this, and three or more adhesion sheets 132 may be provided on the adhesion base 109, and one or three or more laterally cross-linking portions are provided between adjacent adhesion sheets 132. 134 may be provided.

  FIG. 5A is a cross-sectional explanatory view of a skin opening closing device according to the present invention, and FIG. 5B is a plan view of a state in which the skin opening closing device according to the present invention is packaged. FIG. 6A and FIG. 6B are explanatory diagrams of the process of using the skin opening closing device.

  As shown in FIG. 5A, the skin opening closing device includes a release paper bottom plate 1 and two closing members, and each closing member is provided with an attachment mechanism 2, an attachment base 109, and a standoff assembly 111 in order from the bottom. ing. The protective layer 4 is attached to the upper side of the attachment sheet of the attachment base 109. As the protective layer 4, a medical adhesive tape may be used. A pull tab 113 is fixed to the standoff assembly 111. One closure member pull tab 113 penetrates the other closure member standoff assembly 111. The two closing members are separated from each other by a certain distance before use.

  As shown in FIG. 6 (a), during use of the skin opening closing device, the release paper bottom plate 1 is peeled off, and then the attachment mechanisms 2 at both ends are each accurately attached to both sides of the cleaned wound edge. Next, as shown in FIG. 6B, when the pull tabs 113 on both sides are pulled outward and the contact positions 130 of the standoff assembly 111 abut against each other and rotate to some extent, the valgus closure of the wound is realized.

The present invention can achieve the following effects by the above-described structure installation of the closing member.
1. Since the length of the long side of the stand-off attachment portion increases, when closing the skin opening, the number of closing members required for use is reduced for the same length of the skin opening, and the use cost is reduced.
2. By installing multiple attachment sheets and stand-off attachment parts, the total area of the attachment base attached to the skin increases, so the adhesion of the skin opening closure device to the skin increases, and the stability and reliability of the product increases. improves.
3. Since the openings are formed between the plurality of cross-linking portions and the plurality of adhesion sheets and between the plurality of cross-linking portions and the plurality of stand-off adhesion portions, the adhesion base portion has a certain degree of flexibility and flexibility. Since it can bend, when the skin opening closing device is used for a part with high tension (for example, a part such as a knee, an elbow joint, an ankle joint, etc.), it can be well adapted to the skin movement of these parts and is not easily dropped.
4). Since the length of the long side of the stand-off attachment portion is increased, the dimensions of the stand-off assembly and the pull tab are also increased, the structural strength of the pull tab is improved, and it is difficult to tear.
5. Since a gap is provided between the adhering sheets adjacent to each other, a protective layer (for example, a medical adhesive tape) that covers all the adhering sheets from the upper side of the adhering base is directly adhered to the adhering mechanism during use. Can be sandwiched between the protective layer and the attachment mechanism. Therefore, the slip of the adhesion sheet with respect to the adhesion mechanism can be prevented, and the adhesion sheet can be better fixed.

  Although a plurality of embodiments of the present invention have been described above, it will be apparent to those skilled in the art that various changes and modifications that can achieve some effects of the present invention are possible without departing from the spirit of the present invention. It is. For example, if the total area of the adhesion base attached to the skin increases and a plurality of adhesion sheets are formed, those skilled in the art can determine the shape of the standoff adhesion base and the adhesion sheet according to specific usage requirements. The dimensions and the length and width of the standoff assembly and pull tab can be changed. Such modifications and other obvious modifications are within the scope of the appended claims.

Claims (15)

A skin opening closure device comprising a pair of generally identical closure members,
Each of the closure members is
An attachment base fixed to the skin with an attachment mechanism on the first side;
A standoff assembly attached to the second side of the attachment base;
A toothed pull tab having a first end and a second end, the toothed pull tab being coupled to the standoff assembly and defining a longitudinal axis;
The standoff assembly is
A pull tab attachment portion to which a first end of the pull tab is fixed;
A concave connection element capable of receiving and joining the pull tab of the other closure member in use,
The attachment base is
A standoff attachment portion to which the standoff assembly is attached;
A plurality of attachment sheets disposed on the opposite side of the standoff attachment portion from the pull tab;
A skin opening closing device comprising: a plurality of longitudinally cross-linking portions, and each of the longitudinal cross-linking portions including a plurality of bridging portions disposed between each adhesion sheet and the standoff adhesion portion.   The skin opening closure device according to claim 1, wherein the length of the standoff attachment portion is at least twice the length of the standoff assembly in a direction perpendicular to the longitudinal axis of the pull tab.   The skin according to claim 2, wherein, in a direction perpendicular to the longitudinal axis of the pull tab, the size of the standoff assembly is about 8.4 mm and the size of the standoff attachment portion is about 17.6 mm. Opening closing device. The bridging portion further includes a lateral bridging portion for connecting the adhering sheets adjacent to each other,
The skin opening closing device according to claim 1, wherein the cross-linking portion in the lateral direction has a size smaller than that of the stand-off attachment portion and the attachment sheet and can be bent.   5. The two or more lateral cross-linking portions are formed between two adjacent adhesive sheets, and the two adjacent adhesive sheets and the lateral cross-linking portion form an opening. Skin opening closure device.   The skin opening closing device according to claim 1, wherein a protective layer is attached to an upper side of the attachment base.   The skin opening closing device according to claim 6, wherein the protective layer is a medical adhesive tape.   2. A skin opening closure device according to claim 1, wherein the device is made of a biodegradable polymer.   The skin opening closing device according to claim 1, wherein the attachment mechanism includes at least one of a hook and an adhesive.   The skin opening closing device according to claim 1, wherein the standoff adhering portion has a rectangular shape.   2. The skin opening closing device according to claim 1, wherein all of the plurality of adhesion sheets have a rectangular shape and extend so as to be parallel to each other.   The skin opening closing device according to claim 1, wherein a corner portion of the standoff attachment portion is rounded.   The skin opening closing device according to claim 1, wherein corners of the adhesion sheet are rounded.   2. The skin opening closure device according to claim 1, wherein the stand-off assembly is disposed substantially in the middle of the stand-off attachment portion in a direction perpendicular to the longitudinal axis of the pull tab.   The skin opening closing device according to claim 1, wherein the plurality of adhesion sheets are two adhesion sheets.