Tension-reducing stitching instrument for skin

Abstract

The utility model discloses a tension-reducing stitching instrument for skin, the tension-reducing stitching instrument is arranged in pairs, each tension-reducing stitching instrument comprises a base plate, a base, a locking bar, a first elastic sheet and a second elastic sheet, and the base plate is attached to one side of a wound. The base is fixed on the base plate, the base comprises a vertical plate and a horizontal plate, a through hole is formed in the vertical plate, and the horizontal plate is parallel to the base plate and located above the vertical plate. The locking bar is fixed to the first face of the vertical plate and extends in the horizontal direction, and a plurality of ratchets are arranged on the locking bar in the length direction of the locking bar. One end of the first elastic piece is fixed to the second face, opposite to the first face, of the base, the other end of the first elastic piece is located on the side, away from the cable strip, of the vertical plate and suspended, the first elastic piece is located below the horizontal plate, and at least one pawl clamped with the ratchets is arranged on the lower surface of the first elastic piece. One end of the second elastic piece is fixed on the upper surface of the first elastic piece, and the other end is suspended and abuts against the horizontal plate. The stitching instrument adopts a double-elastic-sheet structure, so that the connection stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of skin suture technology, and more particularly to a tension-reducing suture for skin. Background Technology

[0002] Tension-reducing suture devices come in pairs, including a base plate, a locking mechanism on the base plate, and a locking bar. The base plate is fixed to the skin near the wound, and the locking bar is inserted into the locking mechanism of the tension-reducing suture device on the other side of the wound. During the wound closure process, the locking bar needs to be pulled sequentially to adjust the position of the base plates on both sides of the wound, causing the wound to tighten and close towards the center. After adjustment, the support structure engages with the locking bar to secure it. However, in existing technologies, the support structure and locking bar engagement structure are relatively simple and may separate, thus failing to achieve the desired wound closure effect. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a tension-reducing suture for skin, which adopts a double-spring plate structure, which can tightly lock the ratchet on the locking bar and the pawl on the first spring plate, thereby improving the connection stability.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a tension-reducing suture device for skin, wherein the tension-reducing suture devices are arranged in pairs, and the tension-reducing suture device includes:

[0005] A substrate, which is attached to one side of the wound;

[0006] A base fixed to the substrate, the base including a vertical plate and a horizontal plate, the vertical plate having through holes, the horizontal plate being parallel to the substrate and located above the vertical plate;

[0007] A locking bar, which is fixed to the first surface of the upright plate and extends horizontally, and the locking bar is provided with multiple ratchet teeth along its length;

[0008] The first spring piece has one end fixed to the second surface of the base opposite to the first surface, and the other end located on the side of the upright plate away from the cable and suspended in the air. The first spring piece is located below the horizontal plate, and at least one pawl that engages with the ratchet is provided on the lower surface of the first spring piece.

[0009] The second spring has one end fixed to the upper surface of the first spring, and the other end suspended and abutting against the horizontal plate.

[0010] The beneficial effects of this invention are as follows: By adding a horizontal plate and a second spring that cooperate with each other, when the first spring swings upward, it will squeeze the second spring, causing it to deform. At this time, the second spring stores force, applying a force to the first spring to reset, so that the pawl on the first spring can be locked into the ratchet teeth of the locking bar. At the same time, the cooperation between the second spring and the horizontal plate can limit the upward swing distance of the first spring, preventing the first spring from swinging too much and breaking, thus preventing it from resetting.

[0011] Furthermore, the second spring includes a connecting portion and an inclined portion. The connecting portion is fixed to the upper surface of the first spring and extends vertically. The inclined portion is inclined from bottom to top towards the vertical plate. When the first spring swings upward, the fixed end of the second spring moves upward simultaneously. Due to the limitation of the horizontal plate, the second spring is pressed and begins to accumulate force. The inclination direction of the inclined portion ensures that the second spring is pressed when the first spring swings upward.

[0012] Furthermore, the first spring includes a spring portion and a pressing portion connected in sequence. The spring portion is fixed to the upright plate, and the pressing portion is inclined from top to bottom toward the upright plate. The inclination direction of the pressing portion gradually increases the distance between the pressing portion and the base plate, making it easier to insert a finger under the pressing portion and push the first spring to swing upward.

[0013] Furthermore, both the second spring and the pawl are located on the side of the spring portion closer to the pressing portion, where the displacement is relatively large when the first spring swings.

[0014] Furthermore, the upper surface of the connecting part is an inclined surface, the inclination direction of the inclined surface is the same as the inclination direction of the pressing part, and the inclination angle of the inclined surface is smaller than the inclination angle of the pressing part.

[0015] Furthermore, the base, the first spring, the second spring, and the locking bar are integrally molded injection molded parts.

[0016] Furthermore, the perforations and the locking bars are staggered horizontally, with the perforations located on one side of the locking bars. In this configuration, when the two tension-reducing sutures are joined, the two locking bars are at the same height and will not interfere with each other.

[0017] Furthermore, the locking bar is provided with a tear, which is located along the width of the cable. After the locking bar is fixed in position, it is cut along the tear to prevent the locking bar from being too long and causing the end of the locking bar away from the base to come into contact with the skin, resulting in discomfort.

[0018] Furthermore, the base also includes two reinforcing plates fixed to the second surface, the two reinforcing plates being fixed to the base plate, and the first spring sheet and the horizontal plate being located between the two reinforcing plates. The reinforcement plates provide stability and strength to the entire base.

[0019] Furthermore, the end of the lock bar furthest from the base is provided with anti-slip protrusions to increase friction and facilitate operation. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 This is a cross-sectional view of an embodiment of the present utility model.

[0023] In the picture:

[0024] 1. Substrate;

[0025] 2. Base; 21. Vertical plate; 211. Perforation; 22. Horizontal plate; 23. Reinforcing plate;

[0026] 3. Locking bar; 31. Racket tooth; 32. Tear opening; 33. Anti-slip protrusion;

[0027] 4. First spring; 41. Spring part; 411. Pawl; 42. Pressing part;

[0028] 5. Second spring; 51. Connecting part; 52. Inclined part. Detailed Implementation

[0029] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0030] Example

[0031] This invention relates to a tension-reducing suture device for skin, used for suturing wounds on the skin. The tension-reducing suture devices are arranged in pairs, and the pair of tension-reducing suture devices can interlock with each other and tighten the wound to keep the wound in a closed state.

[0032] See appendix Figure 1 and attached Figure 2 As shown, the tension-reducing suture includes a base plate 1, a base 2, a first spring 4, and a locking bar 3.

[0033] The base plate 1 is attached to one side of the wound, and an adhesive layer is fixed on the base plate 1, which can be adhered to the skin. The base 2 is fixed on the base plate 1, and the base 2 includes a vertical plate 21, on which a perforation 211 is provided. The locking bar 3 is fixed to the first surface of the vertical plate 21 and extends horizontally, and the locking bar 3 is provided with a plurality of ratchet teeth 31 along its length. One end of the first spring plate 4 is fixed to the second surface of the base 2 opposite to the first surface, and the other end is located on the side of the vertical plate 21 away from the cable and is suspended. The first spring plate 4 is located below the horizontal plate 22, and at least one pawl 411 that engages with the ratchet teeth 31 is provided on the lower surface of the first spring plate 4.

[0034] When the tension-reducing suture is in use, the locking bar 3 of one tension-reducing suture is inserted into the perforation 211 of another tension-reducing suture. When the locking bar 3 is pulled into place, the pawl 411 of one tension-reducing suture engages with the ratchet 31 of the other tension-reducing suture, thereby fixing the locking bar 3.

[0035] During the pulling of the locking bar 3, the ratchet 31 pushes the first spring plate 4 upward. The first spring plate 4 then returns to its original position using its own elasticity and engages with the next ratchet 31. However, sometimes the locking bar 3 may be pulled excessively, requiring external force to make the first spring plate 4 swing upward. In this case, relying solely on the elasticity of the first spring plate 4 may not be sufficient to properly engage the ratchet 31 and the pawl 411, causing the locking bar 3 to loosen and preventing the stitching effect from being achieved.

[0036] Therefore, in one embodiment, see Appendix Figure 1 and attached Figure 3 As shown, the base 2 also includes a horizontal plate 22, which is parallel to the base plate 1 and located above the vertical plate 21. A second spring 5 is provided on the upper surface of the first spring 4, one end of the second spring 5 is fixed to the upper surface of the first spring 4, and the other end is suspended and abuts against the horizontal plate 22.

[0037] In this embodiment, a horizontal plate 22 and a second spring 5 are added to cooperate with each other. When the first spring 4 swings upward, it will squeeze the second spring 5, causing the second spring 5 to deform. At this time, the second spring 5 stores force to apply force for the reset of the first spring 4, so that the pawl 411 on the first spring 4 can be engaged only in the ratchet 31 of the locking bar 3. At the same time, the cooperation between the second spring 5 and the horizontal plate 22 can limit the upward swing distance of the first spring 4, preventing the first spring 4 from swinging too much and breaking, thus preventing it from being unable to reset.

[0038] In this embodiment, by adding a second spring 5 and a corresponding horizontal plate 22, the stability and tightness of the engagement between the pawl 411 on the spring 5 and the ratchet 31 on the locking bar 3 are improved, thereby enhancing the safety of skin suturing.

[0039] In one embodiment, the cross-sectional area of ​​the substrate 1 in the horizontal plane is greater than that of the base 2 in the horizontal plane. In this case, the substrate 1 has good fixation to the skin and can stably fix the base 2.

[0040] See appendix Figure 3 As shown, the second spring piece 5 includes a connecting portion 51 and an inclined portion 52. The connecting portion 51 is fixed to the upper surface of the first spring piece 4 and extends vertically. The inclined portion 52 is inclined upwards towards the vertical plate 21. The connecting portion 51 has a small height and only serves a connecting function. When the first spring piece 4 swings upwards, the fixed end of the second spring piece 5 moves upwards synchronously. Due to the limitation of the horizontal plate 22, the second spring piece 5 is pressed and begins to accumulate force. The inclined direction of the inclined portion 52 ensures that the second spring piece 5 is pressed when the first spring piece 4 swings upwards.

[0041] In one embodiment, a spring can be used instead of the second spring 5, but considering cost, processing technology and application, the structure of the second spring 5 is adopted in this embodiment.

[0042] The first spring piece 4 includes a spring piece portion 41 and a pressing portion 42 connected in sequence. The spring piece portion 41 is fixed to the upright plate 21. The pressing portion 42 is inclined from top to bottom toward the upright plate 21. At this time, the inclination direction of the pressing portion 42 and the inclined portion 52 are opposite. The inclination direction of the pressing portion 42 makes the distance between the pressing portion 42 and the base plate 1 gradually increase, which makes it easier to insert a finger under the pressing portion 42 and push the first spring piece 4 to swing upward.

[0043] In one embodiment, the second spring 5 and the pawl 411 are both located on the side of the spring portion 41 near the pressing portion 42. When the first spring 4 swings, the position of the spring portion 41 near the pressing portion 42 has the largest displacement. Therefore, the pawl 411 and the second spring 5 are positioned at this position so that the fixed ends of the pawl 411 and the second spring 5 have the maximum displacement.

[0044] In one embodiment, the upper surface of the connecting portion 51 is an inclined surface, the inclination direction of which is the same as that of the pressing portion 42, and the inclination angle of the inclined surface is smaller than that of the pressing portion 42. Setting the upper surface of the connecting portion 51 as an inclined surface, with an inclination direction opposite to that of the inclined portion 52, reduces the size of the second spring piece 5 on it, and allows for greater displacement during up-and-down movement, enabling rapid compression of the second spring piece 5. However, the inclination angle of this inclined surface should not be too large, leaving sufficient space for the placement of the second spring piece 5.

[0045] In this embodiment, the base 2, the first spring 4, the second spring 5, and the locking bar 3 are integrally molded injection molded parts. The injection molded parts themselves are elastic, and the integral molding facilitates processing.

[0046] In one embodiment, the upright plate 21, the first spring 4, the second spring 5, and the locking strip 3 of the base 2 can also be integrally molded parts, but the horizontal plate 22 of the base 2 is snapped together with the upright plate 21 by a connecting frame. In this case, the horizontal plate 22 can be added or removed as needed.

[0047] The perforation 211 and the locking bar 3 are staggered in the horizontal direction, with the perforation 211 located on one side of the locking bar 3. When the two tension-reducing sutures are joined, the two locking bars 3 are at the same height and will not interfere with each other.

[0048] In one embodiment, the locking bar 3 is provided with a tear 32, which is provided along the width direction of the cable. The locking bar 3 can be broken along the tear 32. After the locking bar 3 is fixed in position, the locking bar 3 is cut off to prevent the locking bar 3 from being too long, causing the end of the locking bar 3 away from the base 2 to come into contact with the skin and cause discomfort.

[0049] The locking bar 3 is provided with an anti-slip protrusion 33 at the end away from the base 2. Holding the anti-slip protrusion 33 and pulling the locking bar 3 increases friction and facilitates operation.

[0050] In one embodiment, the base 2 further includes two reinforcing plates 23 fixed to the second surface. The two reinforcing plates 23 are fixed to the base plate 1, and the first spring sheet 4 and the horizontal plate 22 are located between the two reinforcing plates 23. The arrangement of the reinforcing plates 23 provides stability and strength to the entire base 2.

[0051] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A tension-reducing suture device for skin, said tension-reducing suture devices being arranged in pairs, characterized in that: The tension-reducing suture includes: A substrate, which is attached to one side of the wound; A base fixed to the substrate, the base including a vertical plate and a horizontal plate, the vertical plate having through holes, the horizontal plate being parallel to the substrate and located above the vertical plate; A locking bar, which is fixed to the first surface of the upright plate and extends horizontally, and the locking bar is provided with multiple ratchet teeth along its length; The first spring piece has one end fixed to the second surface of the base opposite to the first surface, and the other end located on the side of the upright plate away from the cable and suspended in the air. The first spring piece is located below the horizontal plate, and at least one pawl that engages with the ratchet is provided on the lower surface of the first spring piece. The second spring has one end fixed to the upper surface of the first spring, and the other end suspended and abutting against the horizontal plate.

2. The tension-reducing suture device for skin according to claim 1, characterized in that: The second spring includes a connecting part and an inclined part. The connecting part is fixed to the upper surface of the first spring and extends in a vertical direction. The inclined part is inclined and tilts towards the upright plate from bottom to top.

3. The tension-reducing suture device for skin according to claim 2, characterized in that: The first spring includes a spring part and a pressing part connected in sequence. The spring part and the upright plate are fixed together, and the pressing part is inclined from top to bottom toward the upright plate.

4. The tension-reducing suture device for skin according to claim 3, characterized in that: The second spring and the pawl are both located on the side of the spring portion near the pressing portion.

5. The tension-reducing suture device for skin according to claim 3, characterized in that: The upper surface of the connecting part is an inclined surface, the inclination direction of the inclined surface is the same as the inclination direction of the pressing part, and the inclination angle of the inclined surface is smaller than the inclination angle of the pressing part.

6. The tension-reducing suture device for skin according to claim 1, characterized in that: The base, the first spring, the second spring, and the locking bar are integrally molded injection parts.

7. The tension-reducing suture device for skin according to claim 1, characterized in that: The perforations and the lock bar are staggered in the horizontal direction, with the perforations located on one side of the lock bar.

8. The tension-reducing suture device for skin according to claim 1, characterized in that: The locking bar is provided with a tear opening, which is located along the width direction of the cable bar.

9. The tension-reducing suture device for skin according to claim 1, characterized in that: The base also includes two reinforcing plates fixed to the second surface, the two reinforcing plates being fixed to the base plate, and the first spring sheet and the horizontal plate being located between the two reinforcing plates.

10. The tension-reducing suture for skin according to claim 1, characterized in that: The end of the lock bar away from the base is provided with an anti-slip protrusion.

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