Wound anastomat

Abstract

The utility model discloses a wound anastomat. The wound anastomat comprises a left sticking sheet, a right sticking sheet, a bidirectional handle, a tapered end and a limiting bulge, wherein the limiting bulge is arranged on the bidirectional handle or arranged on the left sticking sheet and the right sticking sheet or arranged on the tapered end. By designing a limiting protrusion, in the process that the left side pasting piece and the right side pasting piece are pulled close through the two-way handle, the situation that a wound between the left side pasting piece and the right side pasting piece is extruded and deformed due to the fact that the left side pasting piece and the right side pasting piece are excessively close can be effectively prevented; meanwhile, the situation that the wound is shielded due to the fact that the left-side pasting piece and the right-side pasting piece are excessively close to each other, and observation and evaluation of medical staff on wound conditions are affected is avoided, and rapid healing of the wound is promoted.

Description

Technical Field

[0001] This utility model relates to medical auxiliary devices, specifically to a wound anastomosis device, and belongs to the field of medical auxiliary device technology. Background Technology

[0002] In traditional surgical procedures, skin wounds are typically treated with sutures. However, this method is time-consuming, requires highly skilled medical personnel, and can increase patient discomfort. Furthermore, it can lead to permanent scarring.

[0003] To address the aforementioned issues, a wound management tool that is easy to operate, saves time and effort, and significantly reduces patient suffering—the wound anastomosis device—has emerged. It also minimizes postoperative scarring. As a convenient medical aid, the wound anastomosis device typically consists of two main parts: an adhesive section and a connecting section. The adhesive section mainly comprises adhesive strips that adhere tightly to both sides of the wound, providing necessary support for wound closure. The connecting section is usually made of cable ties, which can be flexibly adjusted to pull the adhesive strips closer together, effectively promoting wound closure. Using a wound anastomosis device avoids the complex process of traditional suturing surgery. Through innovative design concepts and techniques, it can complete wound closure in a very short time, greatly shortening surgical time, reducing patient suffering, alleviating the workload of medical staff, and reducing the risk of secondary injury caused by improper suturing. Furthermore, the use of a wound anastomosis device effectively reduces the likelihood of postoperative scarring. Existing wound anastomosis devices consist of an adhesive patch and a connecting band. Medical staff pull the connecting band based on experience to bring the adhesive patch together and achieve wound closure. However, while wound anastomosis devices offer many conveniences, they also present some problems in practical use. When the adhesive patch is applied, the entire operating space is completely open, allowing for precise positioning. However, when using the connecting band, the device itself obstructs the view, making it impossible to monitor the tightness of the band connection in real time, often resulting in the band being too loose or too tight. Excessive tension on the band during medical procedures can also have adverse effects. Specifically, an overly tight band exerts excessive pressure on the tissues on both sides of the wound, potentially interfering with the normal healing process. Furthermore, an overly tight band can obstruct the wound, hindering subsequent observation and treatment and making it difficult for medical staff to assess the wound condition. Such a situation is clearly detrimental to normal wound healing. On the other hand, if the ligature is not properly tightened, causing the entire stapler to be in a loose state, then the stapler cannot perform its intended function. In this case, the wound may not close adequately, leading to incomplete wound healing and potentially causing more serious medical problems.

[0004] Clinical observations have shown that the proper use of wound staplers plays a crucial role in wound healing. Staplers mechanically align tissues on both sides of the incision, ensuring a tight seal and reducing healing delays caused by tissue misalignment. The evenly distributed connecting sections (bandages) apply appropriate pressure to the wound, maintaining tissue stability while avoiding excessive pressure that could impair local blood supply. Even tension distribution reduces abnormal collagen deposition, resulting in finer, smoother scars. After using a wound stapler, timely and accurate monitoring of the wound healing process is essential to prevent inflammation, suppuration, and necrosis. Furthermore, regular disinfection after using a wound stapler is necessary to accelerate wound closure. Therefore, the proper use of wound staplers has a positive promoting effect on wound healing.

[0005] However, due to design flaws in existing wound staplers, it is difficult to guarantee the condition of the wound after using a wound stapler, thus affecting wound healing. Therefore, although wound staplers play an important role in modern medicine, their structural design still has shortcomings and cannot better serve clinical treatment. Utility Model Content

[0006] To address the problems of existing wound anastomosis devices that compress tissues on both sides of the wound and obstruct wound healing, this invention proposes an improved wound anastomosis device. This device features pre-set limiting protrusions on the bidirectional handle, adhesive pad, or locking head. These protrusions allow medical personnel to precisely adjust the tension of the bidirectional handle during operation, preventing excessive tightening and reducing unnecessary compression of tissues on both sides of the wound. Furthermore, a wound observation window is provided above the wound, allowing medical personnel to observe, clean, and assess the wound condition in real time, thereby more effectively promoting rapid wound healing.

[0007] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0008] A wound anastomosis device includes a left adhesive patch, a right adhesive patch, a bidirectional handle, and a locking head. The left and right adhesive patches are arranged side by side, and a locking head is provided on both the left and right adhesive patches. The left end of the bidirectional handle passes through the locking head on the left adhesive patch, and the right end of the bidirectional handle passes through the locking head on the right adhesive patch. The wound anastomosis device also includes a limiting protrusion, which may be provided on the bidirectional handle, on the left and right adhesive patches, or on the locking head.

[0009] It should be noted that the terms "left" and "right" in this utility model are merely distinguishing descriptions used for ease of description and differentiation of components, and should not be regarded as a limitation on the scope of the technical solution claimed by this utility model. Substantially equivalent modifications should all fall within the protection scope of this utility model.

[0010] Preferably, the limiting protrusion is provided at at least one position on the upper surface, lower surface, and side surface (referring to the two side surfaces in the width direction, which refers to another horizontal direction perpendicular to the horizontal axis of the bidirectional handle) of the two-way handle.

[0011] Preferably, the limiting protrusion is located in the middle of the two-way handle (referring to the middle of the horizontal axis, i.e., the belt of the two-way handle located between the left adhesive piece and the right adhesive piece).

[0012] Preferably, the limiting protrusion is a block-shaped protrusion, a columnar protrusion, a spherical protrusion, or a strip-shaped protrusion, etc.

[0013] Preferably, the height of the limiting protrusion protruding from the surface of the bidirectional handle is 0.2-10mm, and more preferably 0.5-5mm.

[0014] It should be noted that the term "surface" includes the upper surface, lower surface, and side surface. For example, if the limiting protrusion is located on the upper surface, then the "height" refers to the "vertical height protruding above the upper surface of the bidirectional handle." If the limiting protrusion is located on the lower surface, then the "height" refers to the "vertical height protruding below the lower surface of the bidirectional handle." If the limiting protrusion is located on the side surface, then the "height" refers to the "horizontal distance beyond the side surface in the width direction of the bidirectional handle."

[0015] Preferably, the limiting protrusion includes a left limiting protrusion and a right limiting protrusion. The left limiting protrusion is disposed at at least one position on the upper surface, lower surface, and side surface of the left end of the two-way handle (referring to the part of the handle body located to the left of the center point of the two-way handle). The right limiting protrusion is disposed at at least one position on the upper surface, lower surface, and side surface of the right end of the two-way handle (referring to the part of the handle body located to the right of the center point of the two-way handle).

[0016] Preferably, the left limiting protrusion and the right limiting protrusion are each independently a block-shaped protrusion, a columnar protrusion, a spherical protrusion, or a strip-shaped protrusion, etc.

[0017] Preferably, the height of the left and right limiting protrusions protruding from the surface of the bidirectional handle is 0.2-10mm, and more preferably 0.5-5mm.

[0018] Preferably, the horizontal distance between the left limiting protrusion and the right limiting protrusion is 1-30mm, and more preferably 2-20mm.

[0019] Preferably, the limiting protrusion includes a left limiting protrusion and a right limiting protrusion. The left limiting protrusion is a block-shaped protrusion disposed on the upper surface of the left adhesive piece, and the left limiting protrusion is located to the left of the lock head at the left end of the two-way handle. The right limiting protrusion is a block-shaped protrusion disposed on the upper surface of the right adhesive piece, and the right limiting protrusion is located to the right of the lock head at the right end of the two-way handle.

[0020] Preferably, the height of the left limiting protrusion protruding from the left adhesive piece is greater than the thickness of the bidirectional handle. The height of the right limiting protrusion protruding from the right adhesive piece is greater than the thickness of the bidirectional handle.

[0021] Preferably, the limiting protrusion is a left limiting protrusion provided on the lock head located on the left adhesive piece, and the left limiting protrusion is a strip-shaped protrusion, a block-shaped protrusion, or a column-shaped protrusion extending to the right.

[0022] Preferably, the limiting protrusion is a right limiting protrusion provided on the lock head located on the right adhesive piece, and the right limiting protrusion is a strip-shaped protrusion, a block-shaped protrusion, or a column-shaped protrusion extending to the left.

[0023] In other words, the limiting protrusion can be a left limiting protrusion only on the lock head located on the left adhesive piece, or a right limiting protrusion only on the lock head located on the right adhesive piece, or both left and right limiting protrusions can be set on two lock heads that are opposite each other, in which case the height of the left limiting protrusion and the right limiting protrusion are the same.

[0024] It should be noted that if the limiting protrusion is located on the lock head, then at least one position on both the lock head on the left and right adhesive patches will have a limiting protrusion. That is, the limiting protrusion can be located on one side of the lock head, or it can be located on both sides of the lock head.

[0025] Preferably, the left limiting protrusion is set at the same height as the right limiting protrusion.

[0026] Preferably, the length of the left limiting protrusion and / or the right limiting protrusion extending in the horizontal direction is 0.5~20mm, more preferably 2~15mm.

[0027] Preferably, both the left and right adhesive pads are multi-layer adhesive pads, which are hydrocolloids or include a connecting layer, an adhesive layer, and a release film layer from top to bottom. The bottom of the lock head is provided with a hydrocolloid surface, or is provided on the connecting layer (including being provided on the surface of the connecting layer or embedded therein), or on the adhesive layer (including being provided on the surface of the adhesive layer or embedded therein), or is located between the connecting layer and the adhesive layer.

[0028] Preferably, the bidirectional handle includes a belt body, a left limiting tooth, and a right limiting tooth. The left limiting tooth is located on the left side of the upper surface of the belt body, and the right limiting tooth is located on the right side of the upper surface of the belt body. The limiting directions of the left and right limiting teeth are opposite.

[0029] Preferably, the lock head includes a lock body and a bolt. The lock body has a rectangular block structure and a through-hole for a two-way handle to pass through. The bolt is located inside the bolt and has protruding teeth that mesh with the left or right limiting teeth.

[0030] Preferably, the latch includes an unlocking handle, positioning teeth, a pin, and an elastic body. The pin is located on the upper part of the two opposite sidewalls of the keyhole. Grooves corresponding to the pins are formed on both sides of the inner end of the unlocking handle, and the other end of the unlocking handle extends outward to the outside of the keyhole. The elastic body is fitted onto the pin, with one end connected to the sidewall of the keyhole and the other end extending into the groove at the inner end of the unlocking handle. The lower part of the inner end of the unlocking handle tapers downward to form positioning teeth (i.e., protruding teeth).

[0031] Preferably, an axial groove is provided on the top wall of the keyhole for the unlocking handle to rotate through.

[0032] In this invention, the left and right adhesive patches are typically connected by one or more bidirectional handles, using a limiting protrusion design. The purpose of setting the limiting protrusion on the bidirectional handle, the adhesive patches (left and right), or the locking mechanism is to prevent the left and right adhesive patches from getting too close during the process of pulling them together using the bidirectional handle. This prevents the wound between the left and right adhesive patches from being squeezed and deformed, or from the left and right adhesive patches obscuring the wound due to excessive proximity. Furthermore, the position of the limiting protrusion (which can be visually observed after the entire stapler is used) allows for the assessment of the tension of the stapler adhesive patches, ensuring consistent tension on each bidirectional handle and preventing poor adhesion in localized areas of the wound.

[0033] In a preferred embodiment of this utility model, the limiting protrusion is a single-piece protrusion (e.g., a rectangular block protrusion) disposed in the middle of the upper surface of the two-way handle. That is, the limiting protrusion evenly divides the two-way handle into two segments, and the longitudinal width of the single-piece protrusion is greater than the longitudinal width of the two-way handle (referring to the horizontal direction perpendicular to the length direction of the two-way handle, i.e., the width direction of the two-way handle) and / or the vertical height of the single-piece protrusion is greater than the vertical height of the lock head and keyhole. In other words, when using it, first insert one end of the two-way handle into the lock on any adhesive patch (left or right), leaving enough space between the limiting protrusion and the patch. Then insert the other end of the two-way handle into the lock on another adhesive patch (left or right), making sure the limiting protrusion contacts the lock on that patch (since the width of the limiting protrusion is greater than the width of the lock eye, the limiting protrusion cannot pass through the lock eye after they come into contact). Each two-way handle is installed in this way, so that both ends of all the two-way handles are inserted into the locks on the same side to the same degree, so that the distance between the left and right adhesive patches is basically the same, thus ensuring the overall fit of the wound and leaving an observation window above the wound.

[0034] In a preferred embodiment of this invention, the limiting protrusions include a left limiting protrusion located near the left side of the bidirectional handle and a right limiting protrusion located near the right side of the bidirectional handle. The left and right limiting protrusions have identical structures (e.g., both are rectangular block protrusions, columnar protrusions, or spherical protrusions with a longitudinal width greater than the longitudinal width of the lock head and keyhole), and a certain axial (i.e., the length direction of the bidirectional handle) horizontal distance is maintained between them. In other words, the left and right limiting protrusions are located on the left and right sides of the midpoint of the bidirectional handle, respectively, thus dividing the bidirectional handle into three segments. During use, the left end of the bidirectional handle passes through the lock head on the left adhesive piece until the left limiting protrusion contacts the left lock head; the right end of the bidirectional handle passes through the lock head on the right adhesive piece until the right limiting protrusion contacts the right lock head. This ensures that the distance between the left and right adhesive pieces is essentially the same, thereby guaranteeing an overall wound adhesion effect while also allowing for an observation window above the wound.

[0035] It should be noted that the left and right limiting protrusions can be located either on the upper surface of the bidirectional handle or on the two sides of the bidirectional handle in the width direction. When the left or right limiting protrusion is a symmetrical block or columnar protrusion located on the two sides of the bidirectional handle in the width direction, the longitudinal width of the left or right limiting protrusion refers to the maximum longitudinal span between the block or columnar protrusions located on the two sides of the bidirectional handle in the width direction.

[0036] In a preferred embodiment of this invention, the limiting protrusion is a strip-shaped, block-shaped, or columnar protrusion on the left side of the lock head on the left adhesive patch (left limiting protrusion) and / or a strip-shaped, block-shaped, or columnar protrusion on the right side of the lock head on the right adhesive patch (right limiting protrusion). In a preferred embodiment, opposing left and right limiting protrusions are respectively provided on the two opposing lock heads. A certain axial horizontal distance is reserved between the left limiting protrusion and the left lock head, and a certain axial horizontal distance is reserved between the right limiting protrusion and the right lock head. During use, the left end of the bidirectional handle passes through the lock head on the left adhesive patch, extends to the left, and rests on the left limiting protrusion; the right end of the bidirectional handle passes through the lock head on the right adhesive patch, extends to the right, and rests on the right limiting protrusion. That is, the lengths of the two ends of the bidirectional handle passing through the two lock heads are basically the same, so that the distance between the left and right adhesive patches is basically the same, thereby ensuring the overall fit of the wound, while also leaving an observation window above the wound.

[0037] In a preferred embodiment of this utility model, the limiting protrusion is a horizontal strip-shaped or columnar protrusion on the right side wall of the lock head on the left adhesive piece (left limiting protrusion) and / or a horizontal strip-shaped or columnar protrusion on the left side wall of the lock head on the right adhesive piece (right limiting protrusion). The left limiting protrusion extends a certain length in the axial horizontal direction away from the left side of the lock head, and the right limiting protrusion extends a certain length in the axial horizontal direction away from the right side of the lock head (generally, the extension length of the left limiting protrusion and the right limiting protrusion are the same and their vertical height is the same, that is, the left limiting protrusion and the right limiting protrusion are symmetrically designed). During use, the left end of the two-way handle passes through the lock on the left adhesive plate and extends to the left, while the right end of the two-way handle passes through the lock on the right adhesive plate and extends to the right. As the left and right ends of the two-way handle continue to extend to the left and right respectively, the relatively set left and right limit protrusions will gradually approach each other and eventually abut together. Due to the mutual abutment of the left and right limit protrusions, the left and right ends of the two-way handle cannot continue to extend to the left or right, thus achieving the limiting function. (In addition, when only the left or right limit protrusion is set, the horizontal extension length of the left or right limit protrusion will be relatively longer than the horizontal extension length when both the left and right limit protrusions are set at the same time. And when the right end of the left limit protrusion or the left end of the right limit protrusion abuts against the right or left lock as the two-way handle is pulled, the limiting function can be achieved.) Generally, the horizontal width of the left and right limit protrusions is no greater than the horizontal width of the bidirectional handle, so as not to obscure or affect the size of the observation window reserved between the two adjacent bidirectional handles.

[0038] In this invention, a limiting protrusion can be set on the lock head of the left adhesive piece alone, a limiting protrusion can be set on the lock head of the right adhesive piece alone, or a limiting protrusion can be set on the lock head of both the left and right adhesive pieces at the same time.

[0039] In this invention, the left and right adhesive patches have the same structure, both being multi-layered designs, including a connecting layer, an adhesive layer, and a release film layer from top to bottom. The bottom of the lock head is embedded in the connecting layer, the adhesive layer is located on the lower surface of the connecting layer (the side without the lock head), and the release film layer is attached to the adhesive layer to protect its adhesion. In use, simply peel off the release film and then stick the adhesive layer to the skin on one side of the wound.

[0040] In this invention, the two-way handle includes a belt body, a left limiting tooth, and a right limiting tooth. The limiting directions of the left and right limiting teeth are opposite (for example, when both the left and right limiting teeth are right-angled triangular convex teeth with inclined surfaces and limiting vertical surfaces, the limiting vertical surface of the left limiting tooth faces right, while the limiting vertical surface of the right limiting tooth faces left). Simultaneously, the locking tongues of the two corresponding lock heads on the left and right adhesive pieces also face opposite directions, thus matching the left and right limiting teeth of the two-way handle to achieve locking and limiting at both ends of the two-way handle. The two-way handle serves to fix the left and right adhesive pieces; however, in this design, the limiting directions of the limiting teeth on the left and right sides of the two-way handle are reversed. Through the cooperation of the lock heads and the two-way handle, the left and right adhesive pieces are fixed.

[0041] In this invention, the lock head is designed with an unlocking function to achieve unlocking. Specifically, it includes a lock body and a bolt. The bolt includes an unlocking handle, positioning teeth, a pin, and an elastic body (e.g., a torsion spring or torsion sheet). The positioning teeth are protruding teeth that can mesh with the left and right limiting teeth for positioning. They are mainly formed by the downward tapering of the lower surface of the inner end of the unlocking handle (the end that extends into the keyhole). The inner end of the unlocking handle is connected to the sidewall of the keyhole via the pin and the elastic body on both longitudinal sides. The outer end of the unlocking handle extends axially and protrudes outside the keyhole for easy operation by the operator. Without external force, the preload of the elastic body causes the bottom of the positioning teeth to be lower than the upper ends of the left and right limiting teeth, thus providing a limiting effect. When unlocking is required, the operator holds the outer end of the unlocking handle and presses it downwards (or pulls it upwards), causing it to rotate under the action of the pin. This causes the bottom of the positioning teeth to rotate a certain angle and no longer limit the left and right limiting teeth. It should be noted that when the unlocking handle is pulled upwards to unlock, the outer end of the unlocking handle extends downwards at an angle, allowing it to rotate more than 90 degrees outside the keyhole (or, the angle through which the unlocking handle rotates upwards until it abuts against the top wall of the keyhole is greater than 90 degrees, thus allowing the vertically downward-facing positioning tooth to rotate to a horizontal position and no longer restrict the left and right limiting teeth). At this point, rotating the unlocking handle upwards causes the protruding tooth to rotate. Because the contact depth between the protruding tooth and the limiting tooth is relatively small, and the bidirectional handle can move axially within a small range, the protruding tooth can rotate within this small range, pushing the limiting tooth and disengaging from it, thus unlocking the key. Alternatively, the unlocking handle and positioning tooth can be integrally manufactured from a plastic material with a certain degree of elasticity. Therefore, when the positioning tooth rotates a certain angle, although the lowest point of the positioning tooth is still slightly lower than the upper edges of the left and right limiting teeth, its elastic deformation prevents it from effectively restricting the left and right limiting teeth. Alternatively, an axial groove can be provided on the top wall of the keyhole, allowing the unlocking handle to rotate at an angle greater than 90°. When the two-way handle is in the unlocked state, the handle can be retracted.

[0042] During the application of a wound stapler, the left and right adhesive patches must first be carefully attached to their respective positions on the wound, which is then in an "open" state that allows for clear observation. This allows medical personnel to precisely determine the optimal placement of the left and right adhesive patches. After the left and right adhesive patches are correctly attached, the next step is to use the handle to secure them. This design incorporates a limiting protrusion structure, ensuring that the left and right adhesive patches receive appropriate tightness when secured using the handle. This design avoids excessive pressure on the wound while ensuring proper adhesion, thus aiding in the wound healing process.

[0043] Further research revealed that the inventors observed in clinical practice that the multiple handles or ties on the left and right adhesive pads of wound anastomosis devices present new challenges in actual clinical treatment. Specifically, the tension and position of multiple ties on the same left and right adhesive pads often differ. For example, adjacent ties may have inconsistent tension on the left or right (e.g., the first ties may be biased to the left, while the second ties may be biased to the right). If all ties have inconsistent tension on the left or right, this can lead to wound displacement and misalignment during healing. Ultimately, this can result in curved scars that are often much larger than normal straight scars.

[0044] To address this issue, the inventors have proposed an innovative solution. The design of the novel wound anastomosis device places particular emphasis on the uniform tension and precise positioning of the ligatures. By adding limiting protrusions to the device's structure, it is ensured that each ligature maintains a consistent direction and force when tightened. This design not only prevents wound displacement and misalignment during the healing process but also effectively reduces the area of ​​the scar after healing, resulting in a smoother and more aesthetically pleasing scar.

[0045] In this invention, the length of the two-way handle is 1-50cm, preferably 1.5-30cm, and more preferably 2-20cm. The width of the two-way handle is 0.5-20mm, preferably 0.8-15mm, and more preferably 1-10mm.

[0046] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0047] 1. The wound anastomosis device designed in this utility model, through the ingenious design of a limiting protrusion structure, effectively prevents the left and right adhesive patches from getting too close due to improper operation during the process of pulling the left and right adhesive patches closer together to close the wound using the bidirectional handles. This avoids unnecessary compression and deformation of the wound between the two adhesive patches. This design not only protects the wound from excessive pressure but also ensures that the natural healing process of the wound is not disturbed. Simultaneously, it prevents the left and right adhesive patches from obscuring the wound due to excessive closeness, allowing medical personnel to clearly observe and assess the actual condition of the wound, thus making more accurate medical judgments. Furthermore, the position and shape of the limiting protrusions allow for a direct assessment of the tension of the left and right adhesive patches, ensuring they do not become excessively loose, which is crucial for promoting rapid wound healing. Moreover, the design of the limiting protrusions ensures that the tension of each handle remains consistent, which helps ensure that each local area of ​​the wound receives uniform and appropriate adhesion, thereby avoiding poor healing problems caused by uneven adhesion. In summary, this wound anastomosis device design not only improves the convenience and safety of operation, but also significantly enhances the overall effectiveness and quality of wound healing; while ensuring wound healing, it greatly avoids medical accidents caused by the use of the anastomosis device.

[0048] 2. In the design of this utility model, the setting position of the limiting protrusion is highly flexible and can be selectively installed at any position on different components such as the two-way handle, lock head, and adhesive plate. This design allows users to set one or more limiting protrusions according to actual needs, thus providing a wide range of choices. Since the position and number of limiting protrusions can be adjusted according to the wound in different locations, it has strong adaptability and can meet various different usage scenarios and needs.

[0049] 3. The wound anastomosis device of this utility model has a very simple and clear overall structure design, making it very convenient to operate and use. It is not only easy to manufacture but also inexpensive, possessing high practical value and wide applicability, capable of meeting different occasions and needs. Attached Figure Description

[0050] Figure 1 This is a top view of the wound anastomosis device described in this utility model.

[0051] Figure 2 This is a side view of the wound anastomosis device of this utility model.

[0052] Figure 3 This is a simplified lateral sectional view of the wound anastomosis device described in this utility model.

[0053] Figure 4 This is a simplified side view of the wound anastomosis device of the present invention, which has multiple upper limit protrusions.

[0054] Figure 5 This is a simplified side view of the wound anastomosis device of the present invention, which has multiple upper limit protrusions.

[0055] Figure 6 This is a simplified side view of the wound anastomosis device of the present invention, which has multiple locking head upper limit protrusions.

[0056] Figure 7 This is a top view of the present invention, which has multiple bidirectional handles (a) with upper limit protrusions.

[0057] Figure 8 This is a top view of the present invention, which has multiple bidirectional handles (II) with upper limit protrusions.

[0058] Figure 9 This is a top view of the present invention, which has multiple bidirectional handles (three) with upper limit protrusions.

[0059] Figure 10 This is a simplified sectional view of the lock head from top view.

[0060] Reference numerals: 1: Left adhesive piece; 2: Right adhesive piece; 3: Two-way handle; 301: Belt body; 302: Left limiting tooth; 303: Right limiting tooth; 4: Lock head; 401: Lock body; 402: Lock tongue; 4021: Unlock handle; 4022: Positioning tooth; 4023: Pin; 4024: Elastic body; 5: Limiting protrusion; 501: Left limiting protrusion; 502: Right limiting protrusion. Detailed Implementation

[0061] The technical solution of this utility model is illustrated below. The scope of protection of this utility model includes, but is not limited to, the following embodiments.

[0062] A wound anastomosis device includes a left adhesive patch 1, a right adhesive patch 2, a bidirectional handle 3, and a locking head 4. The left adhesive patch 1 and the right adhesive patch 2 are arranged side-by-side, and a locking head 4 is provided on both. The left end of the bidirectional handle 3 passes through the locking head 4 on the left adhesive patch 1, and the right end of the bidirectional handle 3 passes through the locking head 4 on the right adhesive patch 2. The wound anastomosis device also includes a limiting protrusion 5, which may be located on the bidirectional handle 3, on the left adhesive patch 1 and the right adhesive patch 2, or on the locking head 4.

[0063] Preferably, the limiting protrusion 5 is provided at at least one position on the upper surface, lower surface, and side of the two-way handle 3.

[0064] Preferably, the limiting protrusion 5 is located in the middle of the bidirectional handle 3.

[0065] Preferably, the limiting protrusion 5 is a block-shaped protrusion, a columnar protrusion, a spherical protrusion, or a strip-shaped protrusion.

[0066] Preferably, the height of the limiting protrusion 5 protruding from the surface of the bidirectional handle 3 is 0.2-10mm, and more preferably 0.5-5mm.

[0067] Preferably, the limiting protrusion 5 includes a left limiting protrusion 501 and a right limiting protrusion 502. The left limiting protrusion 501 is disposed at at least one position on the upper surface, lower surface, and side surface of the left end of the bidirectional handle 3. The right limiting protrusion 502 is disposed at at least one position on the upper surface, lower surface, and side surface of the right end of the bidirectional handle 3.

[0068] Preferably, the left limiting protrusion 501 and the right limiting protrusion 502 are each independently a block-shaped protrusion, a columnar protrusion, a spherical protrusion, or a strip-shaped protrusion.

[0069] Preferably, the height of the left limiting protrusion 501 and the right limiting protrusion 502 protruding from the surface of the bidirectional handle 3 is 0.2-10mm, and more preferably 0.5-5mm.

[0070] Preferably, the horizontal distance between the left limiting protrusion 501 and the right limiting protrusion 502 is 1-30mm, and more preferably 2-20mm.

[0071] Preferably, the limiting protrusion 5 includes a left limiting protrusion 501 and a right limiting protrusion 502. The left limiting protrusion 501 is a block-shaped protrusion provided on the upper surface of the left adhesive piece 1, and the left limiting protrusion 501 is located to the left of the lock head 4 at the left end of the bidirectional handle 3. The right limiting protrusion 502 is a block-shaped protrusion provided on the upper surface of the right adhesive piece 2, and the right limiting protrusion 502 is located to the right of the lock head 4 at the right end of the bidirectional handle 3.

[0072] Preferably, the left limiting protrusion 501 protrudes beyond the left adhesive piece 1 at a height greater than the thickness of the bidirectional handle 3. The right limiting protrusion 502 protrudes beyond the right adhesive piece 2 at a height greater than the thickness of the bidirectional handle 3.

[0073] Preferably, the limiting protrusion 5 is a left limiting protrusion 501 provided on the lock head 4 located on the left adhesive piece 1. The left limiting protrusion 501 is a strip-shaped protrusion, a block-shaped protrusion, or a column-shaped protrusion extending to the right.

[0074] Preferably, the limiting protrusion 5 is a right limiting protrusion 502 provided on the lock head 4 located on the right adhesive piece 2. The right limiting protrusion 502 is a strip-shaped protrusion, a block-shaped protrusion, or a column-shaped protrusion extending to the left.

[0075] Preferably, the setting height of the left limiting protrusion 501 is the same as the setting height of the right limiting protrusion 502.

[0076] Preferably, the limiting protrusion is as follows: Figure 4 , Figure 5 , Figure 6 As shown, the left limiting protrusion 501 and the right limiting protrusion 502 can be set opposite to each other, staggered vertically or horizontally, or at least set on one side.

[0077] Preferably, the left limiting protrusion 501 and the right limiting protrusion 502 each extend in the horizontal direction for a length of 0.5~20mm, preferably 2~15mm.

[0078] Preferably, both the left adhesive patch 1 and the right adhesive patch 2 are multi-layer adhesive patches, which are hydrocolloids or include a connecting layer, an adhesive layer, and a release film layer from top to bottom. The bottom of the lock head 4 is disposed on the connecting layer, the adhesive layer, or between the connecting layer and the adhesive layer.

[0079] Preferably, the bidirectional handle 3 includes a belt body 301, a left limiting tooth 302, and a right limiting tooth 303. The left limiting tooth 302 is located on the left side of the upper surface of the belt body 301, and the right limiting tooth 303 is located on the right side of the upper surface of the belt body 301. The limiting directions of the left limiting tooth 302 and the right limiting tooth 303 are opposite.

[0080] Preferably, the lock head 4 includes a lock body 401 and a bolt 402. The lock body 401 has a rectangular block structure and a through-hole for the bidirectional handle 3 to pass through. The bolt 402 is disposed in the bolt and has protruding teeth that mesh with the left limiting tooth 302 or the right limiting tooth 303.

[0081] Preferably, the latch 402 includes an unlocking handle 4021, a positioning tooth 4022, a pin 4023, and an elastic body 4024. The pin is provided on the upper part of the two opposite sidewalls of the keyhole. Grooves corresponding to the pin 4023 are respectively formed on both sides of the inner end of the unlocking handle 4021, and the other end of the unlocking handle 4021 extends outward to the outside of the keyhole. The elastic body 4024 is sleeved on the pin 4023, with one end of the elastic body 4024 connected to the sidewall of the keyhole, and the other end extending into the groove at the inner end of the unlocking handle 4021. The lower part of the inner end of the unlocking handle 4021 tapers downward to form the positioning tooth 4022.

[0082] Preferably, an axial groove is provided on the top wall of the keyhole for the unlocking handle 4021 to rotate through. Example 1

[0083] like Figure 1-3As shown, a wound anastomosis device includes a left adhesive patch 1, a right adhesive patch 2, a bidirectional handle 3, and a locking head 4. The left adhesive patch 1 and the right adhesive patch 2 are arranged side-by-side, and a locking head 4 is provided on both. The left end of the bidirectional handle 3 passes through the locking head 4 on the left adhesive patch 1, and the right end of the bidirectional handle 3 passes through the locking head 4 on the right adhesive patch 2. The wound anastomosis device also includes a limiting protrusion 5, which is disposed on the bidirectional handle 3. Example 2

[0084] The embodiment 1 is repeated, except that the limiting protrusion 5 is provided at at least one position on the upper surface, lower surface, and side of the bidirectional handle 3. Example 3

[0085] Repeat Example 2, except that the limiting protrusion 5 is located in the middle of the bidirectional handle 3. Example 4

[0086] Repeat Example 3, except that the limiting protrusion 5 is a columnar protrusion. Example 5

[0087] Repeat Example 3, except that the limiting protrusion 5 is a spherical protrusion. Example 6

[0088] Repeat Example 3, except that the limiting protrusion 5 is a block protrusion. Example 7

[0089] Repeat Example 6, except that the height of the limiting protrusion 5 protruding from the surface of the bidirectional handle 3 is 0.5mm. Example 8

[0090] Repeat Example 6, except that the surface of the limiting protrusion 5 protrudes 1 mm above the surface of the bidirectional handle 3. Example 9

[0091] Repeat Example 6, except that the surface of the limiting protrusion 5 protrudes 5 from the surface of the bidirectional handle 3 by 5 mm. Example 10

[0092] Repeat Example 1, as follows Figure 4 , 7 As shown in Figure -9, the limiting protrusion 5 includes a left limiting protrusion 501 and a right limiting protrusion 502. The left limiting protrusion 501 is located at at least one position on the upper surface, lower surface, and side surface of the left end of the bidirectional handle 3. The right limiting protrusion 502 is located at at least one position on the upper surface, lower surface, and side surface of the right end of the bidirectional handle 3. Example 11

[0093] The same embodiment 10 is repeated, except that the left limiting protrusion 501 and the right limiting protrusion 502 are both block protrusions. Example 12

[0094] The embodiment 11 is repeated, except that the left limiting protrusion 501 and the right limiting protrusion 502 protrude 5mm from the surface of the bidirectional handle 3. Example 13

[0095] Repeat Example 12, except that the horizontal distance between the left limiting protrusion 501 and the right limiting protrusion 502 is 0.02 times the total length of the bidirectional handle 3. Example 14

[0096] Repeat Example 12, except that the horizontal distance between the left limiting protrusion 501 and the right limiting protrusion 502 is 20mm. Example 15

[0097] Repeat Example 12, except that the horizontal distance between the left limiting protrusion 501 and the right limiting protrusion 502 is 30mm. Example 16

[0098] Repeat Example 1, as follows Figure 5 As shown, the limiting protrusions 5 are simply provided on the left adhesive piece 1 and the right adhesive piece 2. The limiting protrusions 5 include a left limiting protrusion 501 and a right limiting protrusion 502. The left limiting protrusion 501 is a block-shaped protrusion provided on the upper surface of the left adhesive piece 1, and the left limiting protrusion 501 is located to the left of the lock head 4 at the left end of the bidirectional handle 3. The right limiting protrusion 502 is a block-shaped protrusion provided on the upper surface of the right adhesive piece 2, and the right limiting protrusion 502 is located to the right of the lock head 4 at the right end of the bidirectional handle 3. Example 17

[0099] Example 16 is repeated, except that the height of the left limiting protrusion 501 protruding from the left adhesive piece 1 is greater than the thickness of the bidirectional handle 3. The height of the right limiting protrusion 502 protruding from the right adhesive piece 2 is greater than the thickness of the bidirectional handle 3. Example 18

[0100] Repeat Example 1, except that the limiting protrusion 5 is a left limiting protrusion 501 provided on the lock head 4 located on the left adhesive piece 1, and the left limiting protrusion 501 is a strip-shaped protrusion extending horizontally to the right. Example 19

[0101] Repeat Example 1, except that the limiting protrusion 5 is a right limiting protrusion 502 provided on the lock head 4 located on the right adhesive piece 2, and the right limiting protrusion 502 is a strip-shaped protrusion extending horizontally to the left. Example 20

[0102] Repeat Example 1, as follows Figure 6 As shown, the limiting protrusion 5 is simply located on the lock head 4. The limiting protrusion 5 includes a left limiting protrusion 501 and a right limiting protrusion 502. The left limiting protrusion 501 is located on the lock head 4 on the left adhesive piece 1 and extends to the right. The right limiting protrusion 502 is located on the lock head 4 on the right adhesive piece 2 and extends to the left. The setting height of the left limiting protrusion 501 is the same as the setting height of the right limiting protrusion 502. Example 21

[0103] Example 20 is repeated, except that the left limiting protrusion 501 and the right limiting protrusion 502 each extend 5mm in the horizontal direction. Example 22

[0104] Example 9 is repeated, except that both the left adhesive patch 1 and the right adhesive patch 2 are multi-layer adhesive patches, and the multi-layer adhesive patches are hydrocolloids. The bottom of the lock head 4 is disposed on the surface of the hydrocolloid. Example 23

[0105] Example 9 is repeated, except that both the left adhesive sheet 1 and the right adhesive sheet 2 are multi-layer adhesive sheets, each comprising a connecting layer, an adhesive layer, and a release film layer from top to bottom. The bottom of the lock head 4 is disposed on the surface of the connecting layer. Example 24

[0106] Repeat embodiment 23, except that the bottom of the lock head 4 is embedded in the connecting layer. Example 25

[0107] Repeat Example 23, as follows Figure 3 As shown, the bidirectional handle 3 includes a belt body 301, a left limiting tooth 302, and a right limiting tooth 303. The left limiting tooth 302 is located on the left side of the upper surface of the belt body 301, and the right limiting tooth 303 is located on the right side of the upper surface of the belt body 301. The limiting directions of the left limiting tooth 302 and the right limiting tooth 303 are opposite. Example 26

[0108] Repeat Example 25, as follows Figure 10 As shown, the lock head 4 includes a lock body 401 and a bolt 402. The lock body 401 is a rectangular block structure, and a through-hole is provided on the lock body 401 for the bidirectional handle 3 to pass through. The bolt 402 is located in the bolt, and the bolt 402 has protruding teeth that mesh with the left limiting tooth 302 or the right limiting tooth 303. Example 27

[0109] The embodiment 26 is repeated, except that the latch 402 includes an unlocking handle 4021, a positioning tooth 4022, a pin 4023, and an elastic body 4024. A pin is provided on the upper part of the two opposite sidewalls of the keyhole. Grooves corresponding to the pin 4023 are respectively formed on both sides of the inner end of the unlocking handle 4021, and the other end of the unlocking handle 4021 extends outward to the outside of the keyhole. The elastic body 4024 is sleeved on the pin 4023, with one end of the elastic body 4024 connected to the sidewall of the keyhole, and the other end extending into the groove at the inner end of the unlocking handle 4021. The lower part of the inner end of the unlocking handle 4021 tapers downward to form the positioning tooth 4022. Example 28

[0110] The embodiment 27 is repeated, except that an axial groove is also provided on the top wall of the keyhole for the unlocking handle 4021 to rotate through.

[0111] When using, first peel off the release film from the bottom of the left adhesive patch 1 and the right adhesive patch 2. Then, attach the left adhesive patch 1 to the left side of the wound. Next, insert the left end of the bidirectional handle 3 into the locking head 4 on the left adhesive patch 1 and adjust the distance between the limiting protrusion 5 and the locking head 4 on the left adhesive patch 1 (repeat this operation for all bidirectional handles 3). Then, attach the right adhesive patch 2 to the right side of the wound, and simultaneously insert the right end of the bidirectional handle 3 into the locking head 4 on the right adhesive patch 2, adjusting the distance between the limiting protrusion 5 and the locking head 4 on the right adhesive patch 2 (repeat this operation for all bidirectional handles 3). Based on the position of the limiting protrusion 5, leave sufficient gap between the left adhesive patch 1 and the right adhesive patch 2 while ensuring adequate wound adhesion to facilitate subsequent operations such as wound observation, cleaning, disinfection, and medication application. At the same time, based on the position of the limiting protrusion 5, ensure that the left adhesive patch 1 and the right adhesive patch 2 are properly taut to ensure wound healing.

Claims

1. A wound anastomosis device, the wound anastomosis device comprising a left adhesive patch (1), a right adhesive patch (2), a bidirectional handle (3), and a locking head (4); the left adhesive patch (1) and the right adhesive patch (2) are arranged side by side, and a locking head (4) is provided on both the left adhesive patch (1) and the right adhesive patch (2); the left end of the bidirectional handle (3) passes through the locking head (4) on the left adhesive patch (1), and the right end of the bidirectional handle (3) passes through the locking head (4) on the right adhesive patch (2); characterized in that: The wound anastomosis device also includes a limiting protrusion (5), which is disposed on the bidirectional handle (3), or on the left adhesive patch (1) and the right adhesive patch (2), or on the lock head (4).

2. The wound anastomosis device according to claim 1, characterized in that: The limiting protrusion (5) is provided at least one position on the upper surface, lower surface and side of the two-way handle (3); Preferably, the limiting protrusion (5) is located in the middle of the two-way handle (3); Preferably, the limiting protrusion (5) is a block-shaped protrusion, a columnar protrusion, a spherical protrusion, or a strip-shaped protrusion; and / or The height of the limiting protrusion (5) protruding from the surface of the bidirectional handle (3) is 0.2-10mm, preferably 0.5-5mm.

3. The wound anastomosis device according to claim 1, characterized in that: The limiting protrusion (5) includes a left limiting protrusion (501) and a right limiting protrusion (502); the left limiting protrusion (501) is located at at least one position on the upper surface, lower surface and side surface of the left end of the two-way handle (3); the right limiting protrusion (502) is located at at least one position on the upper surface, lower surface and side surface of the right end of the two-way handle (3).

4. The wound anastomosis device according to claim 3, characterized in that: The left limiting protrusion (501) and the right limiting protrusion (502) are each independently a block-shaped protrusion, a columnar protrusion, a spherical protrusion, or a strip-shaped protrusion; and / or The left limiting protrusion (501) and the right limiting protrusion (502) protrude from the surface of the bidirectional handle (3) at a height of 0.2-10mm, preferably 0.5-5mm; Preferably, the horizontal distance between the left limiting protrusion (501) and the right limiting protrusion (502) is 1-30mm, preferably 2-20mm.

5. The wound anastomosis device according to claim 1, characterized in that: The limiting protrusion (5) includes a left limiting protrusion (501) and a right limiting protrusion (502); the left limiting protrusion (501) is a block-shaped protrusion provided on the upper surface of the left adhesive piece (1), and the left limiting protrusion (501) is located on the left side of the lock head (4) at the left end of the two-way handle (3); the right limiting protrusion (502) is a block-shaped protrusion provided on the upper surface of the right adhesive piece (2), and the right limiting protrusion (502) is located on the right side of the lock head (4) at the right end of the two-way handle (3); Preferably, the left limiting protrusion (501) protrudes from the left adhesive piece (1) at a height greater than the thickness of the two-way handle (3); the right limiting protrusion (502) protrudes from the right adhesive piece (2) at a height greater than the thickness of the two-way handle (3).

6. The wound anastomosis device according to claim 1, characterized in that: The limiting protrusion (5) is a left limiting protrusion (501) provided on the lock head (4) located on the left adhesive piece (1). The left limiting protrusion (501) is a strip-shaped protrusion, a block-shaped protrusion, or a column-shaped protrusion extending to the right; and / or The limiting protrusion (5) is a right limiting protrusion (502) provided on the lock head (4) located on the right adhesive piece (2). The right limiting protrusion (502) is a strip-shaped protrusion, a block-shaped protrusion, or a column-shaped protrusion extending to the left. Preferably, the left limiting protrusion (501) and / or the right limiting protrusion (502) each extend in the horizontal direction for a length of 0.5 to 20 mm, preferably 2 to 15 mm.

7. The wound anastomosis device according to any one of claims 1-6, characterized in that: The left adhesive sheet (1) and the right adhesive sheet (2) are both multi-layer adhesive sheets. The multi-layer adhesive sheet is a hydrocolloid, or includes a connecting layer, an adhesive layer and a release film layer from top to bottom. The bottom of the lock head (4) is disposed on the surface of the hydrocolloid, or on the connecting layer or the adhesive layer, or located between the connecting layer and the adhesive layer.

8. The wound anastomosis device according to any one of claims 1-7, characterized in that: The bidirectional handle (3) includes a belt body (301), a left limiting tooth (302), and a right limiting tooth (303); the left limiting tooth (302) is located on the left side of the upper surface of the belt body (301), and the right limiting tooth (303) is located on the right side of the upper surface of the belt body (301); the limiting directions of the left limiting tooth (302) and the right limiting tooth (303) are opposite.

9. The wound anastomosis device according to claim 8, characterized in that: The lock head (4) includes a lock body (401) and a lock tongue (402); the lock body (401) is a rectangular block structure, and a through keyhole is provided on the lock body (401) for the two-way handle (3) to pass through; the lock tongue (402) is located in the keyhole, and the lock tongue (402) is provided with convex teeth that mesh with the left limiting tooth (302) or the right limiting tooth (303).

10. The wound anastomosis device according to claim 9, characterized in that: The latch (402) includes an unlocking handle (4021), a positioning tooth (4022), a pin (4023), and an elastic body (4024). A pin is provided on the upper part of the two opposite side walls of the keyhole. Grooves corresponding to the pin (4023) are respectively opened on both sides of the inner end of the unlocking handle (4021), and the other end of the unlocking handle (4021) extends outward to the outside of the keyhole. The elastic body (4024) is sleeved on the pin (4023), and one end of the elastic body (4024) is connected to the side wall of the keyhole, and the other end extends into the groove at the inner end of the unlocking handle (4021). The lower part of the inner end of the unlocking handle (4021) gradually extends downward to form the positioning tooth (4022).

Images