TWM528735U - Skin opening closure device - Google Patents

Description

Skin opening closure

The present invention provides a skin opening closure device.

Closure of skin openings, such as surgical incisions and accidental tears or wounds, is critical to minimizing the risk of infection and promoting optimal healing of the wound or incision. Both of these results require rapid wound closure and careful approach to the edges of the skin. Closing the skin opening or wound requires a mechanism for pulling the two sides of the skin opening together to promote healing and reduce the formation of scar tissue.

For many years, the way the skin opening is closed is mainly an invasive closure method such as needle closure, staple closure and the like. The advantage is that the price is low, but it causes secondary damage to the skin, which not only does not look good, but also increases the chance of infection of the wound.

Recently, various types of non-invasive closure methods have emerged, such as glue closure and needle-free closure. These non-invasive closure methods, although to some extent reduce the damage caused by invasive closure to the skin, do not achieve a satisfactory closure effect.

As an example of the above non-invasive closure, a pull-type skin opener is known.

Figure 7 is a bottom plan view of a closure component of a prior art skin opener. The skin opening closure comprises two identical closure members, as shown in Figure 7, each closure member having Base 209. The underside of the base 209 has an attachment mechanism (not shown) for attachment to the skin. The base 209 includes an attachment tab 350 and a bracket attachment portion 351. A bridge portion 352 is provided between the attachment piece 350 and the bracket attachment portion 351. The bracket assembly 211 is mounted on the base 209, one end of the pull tab 205 is fixed to the bracket member 211, and the other end extends into the tab receiving portion of the other closure member. In use, by pulling the pull tabs 205 of the two closure members outward, the two closure members are moved toward each other, causing the skin on both sides of the wound to be closed until the bracket members 211 of the two closure members abut each other, thereby achieving The opening of the skin opening.

The pull-type skin opener occlusion substantially avoids secondary damage to the skin and superficial subcutaneous tissue, and does not require a conventional form of invasive skin fixation, so that the skin on both sides of the wound is intact and free from contamination. However, such a pull-type skin opener still has problems. When used in areas with high tension (such as knees, elbow joints, ankle joints, etc.), the skin opening closer in the form of a single attachment piece cannot withstand greater skin tension due to muscle movement at these locations. The greater skin tension causes the attachment tab to be relatively slipped with the attachment mechanism, thereby causing the skin opening closure to fall off easily.

Therefore, there is a need for an improved skin opening closure device that is reliable and stable to use.

In one embodiment of the present disclosure, a skin opening closure device is provided that includes a pair of substantially identical closure members, each closure member having an attachment base at the An attachment mechanism on one side to secure the attachment base to the skin; a bracket element mounted on the second side of the attachment base; a toothed tab having a first end And a second end portion, and the pull tab is coupled to the bracket assembly and defines a longitudinal axis, the bracket member having: a tab attachment portion, the first end of the tab being secured to the tab attachment portion; a female coupling member that, in use, receives and engages a tab from another closure member, wherein the attachment base includes: a bracket attachment portion on which the bracket member is mounted a plurality of attachment tabs on a side of the bracket attachment portion opposite the pull tab; a plurality of bridging portions including a plurality of longitudinal bridging portions, each of the longitudinal bridging portions being attached Between the sheet and the attachment portion of the bracket.

According to other embodiments of the present invention, the length of the bracket attachment portion is at least twice the length of the bracket member in a direction perpendicular to the longitudinal axis of the pull tab, preferably the bracket assembly has a size of about 8.4 mm. The size of the bracket attachment portion is about 17.6 mm.

According to other embodiments of the present invention, the bridging portion further includes a lateral bridging portion for connecting adjacent attachment tabs, the lateral bridging portion being smaller in size than the bracket attachment portion and the attachment tab, and Can bend.

According to other embodiments of the present invention, between two adjacent attachment tabs, more than two lateral bridging portions are formed, the adjacent two attachment tabs and the two or more bridging portions together forming an opening.

According to other embodiments of the present invention, a protective layer is attached to the upper side of the attachment base, preferably the protective layer is a medical tape.

According to other embodiments of the present creation, 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 other embodiments of the present creation, the bracket attachment portion is rectangular in shape, the plurality of attachment tabs being rectangular in shape and extending parallel to each other.

According to other embodiments of the present creation, the corners of the bracket attachment portion and the attachment tab are rounded.

According to other embodiments of the present creation, the bracket element is disposed approximately centrally on the bracket attachment portion in a direction perpendicular to the longitudinal axis of the pull tab.

According to other embodiments of the present creation, the plurality of attachment tabs are two attachment tabs.

1‧‧‧ release paper base plate

2‧‧‧ Attachment

4‧‧‧Protective layer

101‧‧‧Closed parts

109‧‧‧ Attachment base

111‧‧‧ bracket components

113, 205‧‧‧ pull-up

115, 118‧‧‧ end

123‧‧‧ concave connecting element

124‧‧‧ Pull tab attachment part

125‧‧‧ toothed parts

130‧‧‧Contact location

131, 351‧‧‧ bracket attachment part

132, 350‧‧‧ Attachment

133‧‧‧ longitudinal bridging section

134‧‧‧Horizontal bridging

135‧‧‧ openings

209‧‧‧ base

211‧‧‧ bracket assembly

250‧‧‧Prescribed hole

352‧‧‧Bridge section

Embodiments of the present invention will be more readily understood by reference to the following detailed description, in which: FIG. 1 is a perspective view of a closure member of a skin opening closure device according to the present invention.

Figure 2 is a bottom plan view of the closure member of the skin opening closure device in accordance with the present invention.

Figure 3 is a front elevational view of the closure member of the skin opening closure device in accordance with the present invention.

Figure 4 is a top plan view of the closure member of the skin opening closure device in accordance with the present invention.

Fig. 5(a) is a schematic cross-sectional view of the skin opening closure device of the present invention, and Fig. 5(b) is a plan view of the skin opening closure device in a packaged state.

Figures 6(a) and 6(b) are schematic views illustrating the use of the skin opening closure device.

Figure 7 is a bottom plan view of a closure member of a skin opener according to the prior art.

Specific embodiments of the present creation will be described in detail below with reference to the accompanying drawings.

Figures 1 through 4 show the closure members of the skin opening closure device according to the present invention.

The overall structure

The skin opening closure device of the present invention is made from a variety of materials including, but not limited to, plastic, metal, polypropylene, high density polypropylene, and other polymeric or thermoplastic materials or combinations thereof. The skin opening closure device comprises two substantially identical closure members 101. The closure member 101 includes an attachment base 109 having a first side (eg, a lower side of the attachment base 109) Attachment mechanism. An attachment mechanism is used to secure the attachment base 109 to the skin or other tissue (not limited). The attachment mechanism can be a binder. The adhesive can be designed such that the user has some time to make minor adjustments before the adhesive adheres to the skin surface. The time can range from about ten seconds to about three minutes, and in the preferred embodiment the time is about one minute. The binder can be, but is not limited to, a pressure sensitive adhesive. In other embodiments, the attachment mechanism can include one or more hooks to secure the attachment base to the skin or other tissue.

A bracket element 111 is mounted on the second side of the attachment base 109 of each closure member 101. The pull tab 113 is coupled to the bracket member 111 and defines a longitudinal axis, and the pull tab 113 has a first end 115 and a second end 118. The bracket element 111 includes a tab attachment portion 124. The first end portion 115 of the pull tab 113 is fixed to the pull tab attachment portion 124. Preferably, the tab 113 has a tapered shape that tapers slightly toward its longitudinal axis near the second end 118, and the angle of the tapered shape is preferably about 5°.

The bracket element 111 also includes a female coupling element 123. The female coupling element 123 receives and engages the tab 113 from another component. When the two closure members 101 are engaged, the tabs 113 of each closure member 101 pass through the female coupling members 123 of the other closure member 101. The pull tab 113 has a toothed member 125 that is raised from its upper surface. When the pull tab 113 enters the female coupling element 123 associated therewith, the female coupling element 123 prevents the toothing 125 passing through the female coupling element 123 from retracting. Each of the female coupling members 123 of the closure member 101 can have a pull tab locking mechanism that is configured to lock the pull tab 113 in place.

When the pull tab 113 is pulled through the female connecting member 123 of the other closing member 101, the two closing members 101 move closer to each other, and thus the edges of the skin opening to which the attachment base 109 is attached move closer to each other. Further pulling causes the bracket elements 111 of the closure member 101 to substantially contact each other at the contact location 130, such that each of the bracket members 111 pivots about the contact position 130. When this occurs, the respective portions of the bottom surface of each attachment base 109 are lifted, causing a flip of the tissue edge defining the skin opening, which has an adhesive coating during use and adheres to the skin or other group Weaving. In order to facilitate the inversion of the wound edge, preferably the pull tab 113 is disposed at the lower third of the height of each of the bracket members 111, and preferably the contact position 130 is disposed at the upper third of the height of each of the bracket members 111. One place.

Preferably, the skin opening to be treated is smaller than the length of the tab. However, even for skin openings larger than the length of the tab, it is possible to apply the member to both sides of the opening and manually bring the members together to allow the tab to engage the female connecting member on the other closure member Engaged.

Depending on the type of adhesive used, the closure will naturally peel off in about seven to ten days. Alternatively, the user can apply a solvent to the adhesive for faster removal.

Attachment base

The specific structure of the attachment base will be described below with reference to Fig. 2.

The attachment base 109 of the closure member 101 can be porous to allow tissue breathing and drainage of tissue fluid. Unlike many other mammalian species, human tissue breathes and produces oil and moisture. These physiological processes can cause premature displacing and movement of the device and thus cause device failure. This can be overcome by making the attachment base 109 porous. For example, the attachment base 109 can include a porous material, and/or one or more predetermined apertures 250 of critical mass that allow tissue to breathe and expel fluid and/or gas from the tissue without affecting the adhesive properties of the device.

As shown in FIG. 2, the attachment base 109 includes a bracket attachment portion 131, a plurality of attachment tabs 132, and a plurality of bridging portions.

In the preferred embodiment, the bracket attachment portion 131 has a rectangular shape with a long side extending perpendicularly to the longitudinal axis direction of the pull tab. The bracket member 111 is disposed approximately centrally on the bracket attachment portion 131 in the longitudinal direction of the bracket attachment portion 131. In the longitudinal axis direction of the pull tab, one end of the bracket member 111 extends beyond one end of the bracket attachment portion 131, and the other end of the bracket member 111 is retracted inward from the other end of the bracket attachment portion 131 by a distance. The bracket attachment portion 131 is sized to be longer than the bracket member 111 in a direction perpendicular to the longitudinal axis of the tab, preferably twice the size of the bracket assembly 111. on. More preferably, the size of the bracket member 111 is about 8.4 mm, and the size of the bracket attachment portion 131 is about 17.6 mm. Further, the corner portion of the bracket attachment portion can be rounded.

The plurality of attachment tabs 132 extend parallel to each other and are located on the opposite side of the bracket attachment portion 131 from the tab. Each of the attachment pieces 132 has a rectangular shape with a long side extending parallel to the longitudinal axis direction of the pull tab. In a direction perpendicular to the longitudinal axis of the tab, the total size of the attachment tab is less than the size of the bracket attachment portion and greater than the size of the bracket member. In addition, the corners of the attachment tabs can be rounded.

The bridging portion includes a plurality of longitudinal bridging portions 133 that are respectively located between each of the attachment tabs 132 and the bracket attachment portion 131. In a preferred embodiment, the bridging portion further includes a lateral bridging portion 134 for connecting adjacent attachment tabs 132. The longitudinal bridging portion 133 and the lateral bridging portion 134 are smaller in size than the bracket attachment portion 131 and the attachment tab 132 and are therefore more susceptible to bending so that when the wound is closed using the skin closure device, when the stent component of the closure member 101 is closed When the 111 is substantially in contact at the contact location 130 and pivots about the contact location 130, the flipping of the tissue edge of the skin opening is easier to achieve, thereby reducing the pulling force required to pull the tab and promoting the tissue edge eversion of the skin opening. Conducive to healing.

As shown in FIG. 2, in the preferred embodiment of the present invention, the attachment base 109 is provided with two attachment tabs 132. Two lateral bridging portions 133 are provided between the two attachment tabs 132. Two adjacent attachment tabs 132 and two lateral bridging portions 134 form a rectangular frame with an opening 135 formed in the middle of the rectangular frame. However, the present invention is not limited thereto, and the attachment base 109 may also be provided with more than two attachment tabs 132, and one or more than two lateral bridging portions 134 may also be disposed between adjacent attachment tabs 132.

Fig. 5(a) is a schematic cross-sectional view of the skin opening closure device of the embodiment of the present invention, and Fig. 5(b) is a plan view of the skin opening closure device in a packaged state. Figures 6(a) and 6(b) are schematic views illustrating the use of the skin opening closure device.

As shown in Fig. 5(a), the skin opening closure device includes a release liner 1 and two closure members, each closure member being provided with an attachment mechanism 2, an attachment base 109 and a bracket member 111 from bottom to top. On the upper side of the attachment piece of the attachment base 109, a protective layer 4 is attached. The protective layer can be, for example, a medical tape. The bracket assembly 111 is fixed with a pull tab 113. The pull tab 113 of one closure member passes through the bracket member 111 of the other closure member and the two closure members 111 are spaced apart from one another prior to use.

During use of the skin opener, the release liner 1 is peeled off and the attachment mechanisms 2 at both ends are accurately placed on either side of the cleaned wound skin, as shown in Figure 6(a). Next, the pull tabs 113 on both sides are pulled outward until the contact positions 130 of the bracket members 111 abut each other and a certain degree of pivoting occurs, thereby achieving the eversion closure of the wound, as shown in Fig. 6(b).

By the above structural arrangement of the closure member, the creation can achieve the following advantages:

1. The length of the long side of the stent attachment portion is increased so that the number of closure devices required to be used for the same length of skin opening is reduced when the skin opening is closed, thereby reducing the cost of use.

2. Through the arrangement of the plurality of attachment tabs and the attachment portion of the stent, the total area of the attachment base attached to the skin is increased, so that the adhesion of the skin opening closure device to the skin is increased, thereby increasing the stability of the product. Sexuality and reliability.

3. Since the opening is formed between the plurality of bridge portions, the plurality of attachment tabs, and the bracket attachment portion such that the attachment base has a certain degree of flexibility and flexibility, the attachment base can be bent to some extent, and thus the skin opening The closing device can well conform to the skin movement of these parts when used in places with high tension (such as knees, elbow joints, ankle joints, etc.), so that the skin opening closure device is not easy to fall off.

4. Since the length of the long side of the bracket attachment portion is increased, the size of the bracket member and the pull tab can also be increased, thereby increasing the structural strength of the pull tab so that it is not easily broken.

5. Since a gap is left between two adjacent attachment tabs, in use, a protective layer (eg, medical tape) covering all of the attachment tabs on the upper side of the attachment base can be directly bonded to the attachment mechanism The attachment tab is clamped between the protective layer and the attachment mechanism to prevent slippage of the attachment tab relative to the attachment mechanism for better attachment of the attachment tab.

Although a plurality of exemplary embodiments of the present invention have been disclosed, it will be apparent to those skilled in the art that various changes that will achieve some of the advantages of the present invention can be made without departing from the true scope of the present invention. And modified. For example, as long as the total area of the attachment base attached to the skin is increased, and a plurality of attachment tabs are formed, those skilled in the art can change the shape and size of the stent attachment base and the attachment tab according to specific application requirements. And the length and width of the bracket assembly and tab. These and other obvious modifications are intended to be covered by the scope of the accompanying claims.

101‧‧‧Closed parts

109‧‧‧ Attachment base

113‧‧‧ pull-up

115, 118‧‧‧ end

131‧‧‧ bracket attachment part

132‧‧‧ Attachment

133‧‧‧ longitudinal bridging section

134‧‧‧Horizontal bridging

135‧‧‧ openings

Claims (15)

A skin opening closure device comprising: a pair of substantially identical closure members, each closure member having: an attachment base having an attachment mechanism on a first side thereof to An attachment base is secured to the skin; a bracket member mounted on the second side of the attachment base; a toothed tab having a first end and a second end, and the tab coupling To the bracket assembly and defining a longitudinal axis, the bracket element has: a tab attachment portion to which the first end of the tab is secured; a female coupling element, the female connection in use The component is capable of receiving and engaging a pull tab from another closure component, wherein the attachment base comprises: a bracket attachment portion on which the bracket component is mounted; a plurality of attachment tabs, the attachment tab being located a side of the bracket attachment portion opposite the pull tab; a plurality of bridging portions including a plurality of longitudinal bridging portions, the longitudinal bridging portions being respectively attached to each of the attachment tabs and the bracket Between points. The skin opening closure device of claim 1, wherein the length of the stent attachment portion is at least twice the length of the stent member in a direction perpendicular to the longitudinal axis of the tab. The skin opening closure device of claim 2, wherein the stent assembly has a dimension of about 8.4 mm and a stent attachment portion has a dimension of about 17.6 mm in a direction perpendicular to the longitudinal axis of the tab. The skin opening closure device of claim 1, wherein the bridging portion further comprises a lateral bridging portion for connecting adjacent attachment tabs, the lateral bridging portion being sized to be attached to the bracket The attachment piece is small in size and can be bent. The skin opening closure device of claim 4, wherein between the two adjacent attachment pieces, two or more lateral bridging portions are formed, the adjacent two attachment pieces and the bridging portion Together they form an opening. The skin opening closure device according to claim 1, wherein a protective layer is attached to an upper side of the attachment base. The skin opening closure device of claim 6, wherein the protective layer is a medical tape. The skin opening closure device of claim 1, wherein the skin opening closure device is made of a biodegradable polymer. The skin opening closure device of claim 1, wherein the attachment mechanism comprises at least one of a hook and an adhesive. The skin opening closure device of claim 1, wherein the stent attachment portion has a rectangular shape. The skin opening closure device of claim 1, wherein the plurality of attachment tabs are rectangular in shape and extend parallel to each other. The skin opening closure device of claim 1, wherein the corner of the attachment portion of the stent is rounded. The skin opening closure device of claim 1, wherein the corner of the attachment piece is rounded. The skin opening closure device of claim 1, wherein the stent member is disposed approximately centrally on the stent attachment portion in a direction perpendicular to the longitudinal axis of the pull tab. The skin opening closure device of claim 1, wherein the plurality of attachment tabs are two attachment tabs.