Skin incision tension testing device
By designing a skin incision tension testing device, which uses a traction device to hook onto both sides of the skin incision and measure the incision tension, the problem of lack of accurate measurement in clinical practice is solved, and the reliability of incision healing is improved.
Patent Information
- Application Number
- CN202422468389.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-10-12
AI Technical Summary
The lack of accurate methods for measuring incision tension in clinical practice leads doctors to rely on tactile experience to estimate it, which affects the wound healing effect.
A skin incision tension testing device was designed, including a transverse tension meter, a movable test rod, a fixed test rod, and first and second traction devices. The traction devices hook the skin edges on both sides of the incision, and the transverse tension meter is used to measure the incision tension.
It enables accurate measurement of incision tension, helping doctors assess the risk of incision healing and reduce the occurrence of complications such as incision dehiscence and ischemic necrosis.
Smart Images
Figure CN223614822U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a skin incision tension testing device. Background Technology
[0002] Clinically, incision tension is a key factor affecting wound healing; the larger the tissue defect area, the greater the incision tension. In plastic surgery, large tissue defects are often repaired using a tissue donor site and closed with direct apposition, resulting in significant tension at the incision site. When tension exceeds a certain level, complications such as poor wound healing, wound dehiscence, and ischemic necrosis are likely to occur. Currently, there is a lack of methods for measuring incision tension in clinical practice; doctors estimate it based on tactile experience, which is not accurate enough. Utility Model Content
[0003] This invention provides a skin incision tension testing device to solve the above-mentioned technical problems.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows:
[0005] A skin incision tension testing device includes: a transverse tension meter, a movable test rod, a fixed test rod, a first traction device, and a second traction device;
[0006] The movable test rod is fixed to the measuring head of the transverse tension meter. The axis of the movable test rod passes through the rotation center of the measuring head, and the movable test rod swings synchronously with the measuring head.
[0007] The first traction device is fixed at the end of the movable test rod away from the measuring head. The first traction device is used to pull the skin edge on one side of the skin incision.
[0008] The fixed test rod is fixed to the housing of the transverse tension meter, and the second traction device is fixed to the end of the fixed test rod away from the housing. The second traction device is used to pull the skin edge on the other side of the skin incision.
[0009] Preferably, the first traction device is a traction hook, which is used to hook onto the skin tissue.
[0010] Preferably, the second traction device is a traction hook, which is used to hook onto the skin tissue.
[0011] Preferably, both the first and second traction devices employ traction hooks, which are used to hook onto skin tissue.
[0012] Preferably, the traction hook includes a hook handle and a hook body in sequence; the hook handle of the first traction device is coaxial and fixedly connected to the movable test rod, and the hook handle of the second traction device is coaxial and fixedly connected to the fixed test rod; the hook tip of the hook body is conical and used to pierce and hook onto skin tissue.
[0013] Preferably, the traction hooks of the first and second traction devices are both parallel to the rotation plane of the measuring head. The hook tip of the first traction device is located on one side of the hook shank along the first rotation direction of the measuring head, and the hook tip of the second traction device is located on one side of the hook shank along the second rotation direction of the measuring head. The first and second rotation directions are opposite.
[0014] Preferably, the test rod is fixed on the mounting base, and the mounting base is fixed on the housing.
[0015] Preferably, the fixed test rod is located on one side of the plane of rotation of the measuring head.
[0016] Preferably, the fixed test rod is parallel to the movable test rod, and when the measuring pointer of the transverse tension meter returns to zero, the fixed test rod aligns with the movable test rod.
[0017] Preferably, the measuring head has a first through hole and the mounting base has a second through hole. The first through hole and the second through hole are set correspondingly. After the fixing buckle is inserted into the first through hole and the second through hole, the measuring pointer of the transverse tension meter returns to zero.
[0018] Beneficial effects:
[0019] The skin incision tension testing device disclosed in this application uses a first traction device and a second traction device to pull the skin edges on both sides of the skin incision, respectively. The first traction device drives the movable testing rod and then reads the incision tension value through a transverse tension meter. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the movable test rod and the fixed test rod in the locked state of the skin incision tension testing device disclosed in this utility model.
[0022] Figure 2 This is a schematic diagram of the unlocked state of the movable test rod and the fixed test rod of the skin incision tension testing device disclosed in this utility model.
[0023] Figure 3 This is a side view of the skin incision tension testing device disclosed in this utility model;
[0024] Figure 4 This is a rear view of the skin incision tension testing device disclosed in this utility model;
[0025] Figure 5 This is a front view of the skin incision tension testing device disclosed in this utility model;
[0026] Figure 6 This is a schematic diagram of the traction hook structure of the skin incision tension testing device disclosed in this utility model.
[0027] 1. Transverse tension gauge; 11. Measuring head; 2. Movable test rod; 3. Fixed test rod; 4. First puller; 5. Second puller; 61. Hook handle; 62. Hook body; 7. Mounting base; 8. Fixing buckle. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0029] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, where Figure 1 , Figure 2 and Figure 4The diagram shows the structure behind the cover of the transverse tension meter 1. The skin incision tension testing device includes: a transverse tension meter 1, a movable test rod 2, a fixed test rod 3, a first traction device 4, and a second traction device 5; the movable test rod 2 is fixed to the measuring head 11 of the transverse tension meter 1, and the axis of the movable test rod 2 passes through the rotation center of the measuring head 11, and the movable test rod 2 swings synchronously with the measuring head 11; the first traction device 4 is fixed to the end of the movable test rod 2 away from the measuring head 11, and the first traction device 4 is used to pull one side of the skin edge of the skin incision; the fixed test rod 3 is fixed to the housing of the transverse tension meter 1, and the second traction device 5 is fixed to the end of the fixed test rod 3 away from the housing, and the second traction device 5 is used to pull the other side of the skin edge of the skin incision. The first traction device 4 and the second traction device 5 respectively pull on both sides of the skin incision. The second traction device 5, fixed to the fixed test rod 3, remains stationary as a reference. Under the tension of the skin incision, the first traction device 4 drives the movable test rod 2 and the measuring head 11 to swing synchronously, thus displaying the tension value on the dial of the transverse tension meter 1. This tension testing device can accurately measure the tension, which is helpful in understanding the risk of skin incision suturing and selecting a more appropriate method for incision treatment. This tension testing device also features small size, simple structure, and easy operation.
[0030] Preferably, both the first traction device 4 and the second traction device 5 employ traction hooks. The traction hooks are used to hook onto the skin tissue, and the second traction device 5 pulls on one side of the skin edge. The first traction device 4, driven by the other side of the skin edge, causes the movable test rod 2 and the measuring head 11 to swing, thereby measuring the skin incision tension. Furthermore, the way the traction hooks hook onto the skin edge makes the measurement operation simple and quick, and can also simulate the state during suturing, which is beneficial for observing whether there is a risk of skin incision dehiscence.
[0031] Preferably, the traction hook includes a hook shank 61 and a hook body 62 in sequence; the hook shank 61 of the first traction device 4 is coaxial and fixedly connected to the movable test rod 2, and the hook shank 61 of the second traction device 5 is coaxial and fixedly connected to the fixed test rod 3; the hook tip of the hook body 62 is conical, used to pierce and hook onto skin tissue. The conical hook tip facilitates piercing the skin so that the hook body 62 hooks onto the skin tissue, and the hook shank 61 is used for connecting the traction hook.
[0032] Preferably, the traction hooks of the first puller 4 and the second puller 5 are both parallel to the rotation plane of the measuring head 11. The hook tip of the hook body 62 of the first puller 4 is located on one side of the hook shank 61 along the first rotation direction of the measuring head 11, and the hook tip of the hook body 62 of the second puller 5 is located on one side of the hook shank 61 along the second rotation direction of the measuring head 11. The first rotation direction and the second rotation direction are opposite. Figure 5As indicated by the arrows, the first rotation direction is the clockwise rotation of the measuring head 11, and the second rotation direction is the counterclockwise rotation of the measuring head 11. By setting the traction hooks of the first puller 4 and the second puller 5 back to back, it is convenient to hook the two sides of the leather edge respectively during operation.
[0033] Preferably, the fixed test rod 3 is fixed on the mounting base 7, and the mounting base 7 is fixed on the housing, so that the fixed test rod 3 is reliably fixed.
[0034] Specifically, the mounting base 7 is L-shaped and includes a vertical part and a horizontal part. The vertical part is parallel to the measuring head 11, and the horizontal part connects to the vertical part and extends away from the measuring head 11. The horizontal part can be fixed to the housing of the transverse tension meter 1 by countersunk screws (not shown in the figure). The vertical part has a mounting hole, and one end of the fixed test rod 3 is inserted into the mounting hole for fixation.
[0035] Preferably, the fixed test rod 3 is located on one side of the rotating plane of the measuring head 11, so that the fixed test rod 3 does not interfere with the swing of the movable test rod 2, and provides the possibility for the fixed test rod 3 and the movable test rod 2 to be aligned.
[0036] Preferably, the fixed test rod 3 is parallel to the movable test rod 2, and when the measuring pointer of the transverse tension meter 1 returns to zero, the fixed test rod 3 aligns with the movable test rod 2. This design facilitates zeroing and alignment between measurements.
[0037] Specifically, the movable test rod 2 and the fixed test rod 3 are thin round rods with the same outer diameter, making it easy to observe whether they are aligned. A through groove is provided at the end of the movable test rod 2. After the measuring head 11 is inserted into the through groove, the movable test rod 2 and the measuring head 11 are laser-welded together. The traction hook can also be laser-welded to the movable test rod 2, and to the fixed test rod 3.
[0038] Preferably, the measuring head 11 has a first through hole, and the mounting base 7 has a second through hole. The first and second through holes are correspondingly arranged. After the fixing buckle 8 is inserted into the first and second through holes, the measuring pointer of the transverse tension meter 1 returns to zero. The fixing buckle 8 locks the movable test rod 2 and the fixed test rod 3, so that the relative positions of the movable test rod 2 and the fixed test rod 3 remain unchanged after zeroing, allowing the hooks to be attached to the skin edges on both sides to observe whether the skin incision is aligned and closed.
[0039] Specifically, the first and second through holes are elongated oval holes of the same shape. The second through hole is located on the vertical part, and its orientation is along the tangent of the swing of the measuring head 11. The sidewall of the second through hole coincides with the upper surface of the horizontal part. The cross-sectional shape of the fixing buckle 8 is the same as that of the elongated oval hole. After the fixing buckle 8 is attached to the upper surface of the horizontal part, pushing the fixing buckle 8 will insert it into the first and second through holes to achieve locking.
[0040] Specifically, the housing of the transverse tension gauge 1 may also be provided with a slot (not shown in the figure) for storing the fixing buckle 8.
[0041] The measurement method of the device in this application:
[0042] 1. Align and overlap the movable test rod 2 and the fixed test rod 3, and lock them with the fixing buckle 8 to ensure that the scale reading of the transverse tension meter 1 is zero at this time.
[0043] 2. Hook the first traction device 4 and the second traction device 5 onto the skin edges on both sides of the skin incision to pull the skin incision closer together.
[0044] 3. Observe whether the skin incision edge closes at this time. If it closes, it indicates that the first traction device 4 and the second traction device 5 are hooked correctly. If it does not close, remove the first traction device 4 from the skin edge, adjust its position, and re-hook it until the scale reading is zero, at which point the skin incision edge closes. For example, if the skin incision edge does not close, adjust the hook position of the first traction device 4 away from the skin incision edge. However, during the pulling process, carefully observe whether there is a tendency for the skin tissue hooked by the first traction device 4 to crack. If there is a tendency for cracking, stop pulling immediately.
[0045] 4. Remove the fixing buckle 8 to unlock it. Due to the skin tension, the first traction device 4 will be moved, which will cause the movable test rod 2 and the fixed test rod 3 to separate. The scale reading is the skin incision tension value.
[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A skin incision tension testing device, characterized in that, include: Transverse tension meter (1), movable test rod (2), fixed test rod (3), first tensioner (4) and second tensioner (5); The movable test rod (2) is fixed on the measuring head (11) of the transverse tension meter (1). The axis of the movable test rod (2) passes through the rotation center of the measuring head (11), and the movable test rod (2) swings synchronously with the measuring head (11). The first traction device (4) is fixed to the end of the movable test rod (2) away from the measuring head (11), and the first traction device (4) is used to pull the edge of the skin incision on one side; The fixed test rod (3) is fixed on the housing of the transverse tension meter (1), and the second traction device (5) is fixed on the end of the fixed test rod (3) away from the housing. The second traction device (5) is used to pull the skin edge on the other side of the skin incision.
2. The skin incision tension testing device according to claim 1, characterized in that, The first traction device (4) employs a traction hook, which is used to hook onto skin tissue.
3. The skin incision tension testing device according to claim 1, characterized in that, The second traction device (5) employs a traction hook, which is used to hook onto skin tissue.
4. The skin incision tension testing device according to claim 1, characterized in that, Both the first traction device (4) and the second traction device (5) employ traction hooks, which are used to hook onto skin tissue.
5. The skin incision tension testing device according to claim 4, characterized in that, The traction hook includes a hook handle (61) and a hook body (62) in sequence; the hook handle (61) of the first traction device (4) is coaxial and fixedly connected to the movable test rod (2), and the hook handle (61) of the second traction device (5) is coaxial and fixedly connected to the fixed test rod (3); the hook tip of the hook body (62) is conical and is used to pierce and hook the skin tissue.
6. The skin incision tension testing device according to claim 5, characterized in that, The traction hooks of the first puller (4) and the second puller (5) are both parallel to the rotation plane of the measuring head (11). The hook tip of the hook body (62) of the first puller (4) is located on one side of the hook shank (61) along the first rotation direction of the measuring head (11), and the hook tip of the hook body (62) of the second puller (5) is located on one side of the hook shank (61) along the second rotation direction of the measuring head (11). The first rotation direction and the second rotation direction are opposite.
7. The skin incision tension testing device according to claim 1, characterized in that, The fixed test rod (3) is fixed on the mounting base (7), and the mounting base (7) is fixed on the housing.
8. The skin incision tension testing device according to claim 7, characterized in that, The fixed test rod (3) is located on one side of the rotating plane of the measuring head (11).
9. The skin incision tension testing device according to claim 8, characterized in that, The fixed test rod (3) is parallel to the movable test rod (2). When the measuring pointer of the transverse tension meter (1) returns to zero, the fixed test rod (3) aligns with the movable test rod (2).
10. The skin incision tension testing device according to claim 8 or 9, characterized in that, The measuring head (11) has a first through hole, and the mounting base (7) has a second through hole. The first through hole and the second through hole are set in a corresponding manner. After the fixing buckle (8) is inserted into the first through hole and the second through hole, the measuring pointer of the transverse tension meter (1) returns to zero.