Tension reducing device for tension wound suture

By designing a protective box and a tension adjustment mechanism, the problems of adhesive patches falling off on the limbs and being difficult to adapt to different wound lengths were solved, achieving stable fixation and adaptability of the tension reducer, and promoting patient recovery.

CN121774577APending Publication Date: 2026-04-03THE FIRST AFFILIATED HOSPITAL OF MEDICAL COLLEGE OF XIAN JIAOTONG UNIV
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Patent Information

Application Number
CN202311602088.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-11-28
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In existing technologies, adhesive patches are prone to falling off on the limbs, and skin secretions affect the adhesion effect. It is difficult to effectively reduce tension on wounds of different lengths, resulting in wound dehiscence or poor healing after suturing.

Method used

A tension reducer for tension wound suturing was designed, comprising a protective box and a tension adjustment mechanism. Through components such as a rotating shaft, belt, gear meshing, and threaded rod, the tension and extension of the fixing belt can be adjusted to adapt to different wound lengths and sizes.

Benefits of technology

It improves the stability and fixation effect of the tension reducer, enhances its adaptability to different wounds, and promotes the patient's recovery speed and healing effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of medical instruments, in particular to a tension reducing device for tension wound suturing, which comprises a protection box, a tightness adjusting mechanism is arranged in the protection box, the tightness adjusting mechanism comprises a first rotating shaft arranged outside the protection box, and the outside of the first rotating shaft is fixedly connected with a third rotating shaft; the exterior of the third rotating shaft is fixedly connected with a second fixing belt, the exterior of the third rotating shaft is fixedly connected with a first rotating wheel, the exterior of the first rotating wheel is in transmission connection with a belt, the side, away from the first rotating wheel, of the belt is in transmission connection with a second rotating wheel, and the exterior of the second rotating wheel is fixedly connected with a fourth rotating shaft. Through meshing connection between a first rack arranged outside the first telescopic column and a second rack arranged outside the second telescopic column and a gear, the second telescopic column can stretch out or retract into the first telescopic column, the length of the telescopic plate can be adjusted according to different wound sizes of a patient, and the using effect of the tension reducing device is improved.
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Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a tension reducer for tension wound suturing. Background Technology

[0002] Surgery is a branch of modern medicine that primarily studies how to use surgical methods to remove pathogens from patients, thereby treating them. It is a specialized department that uses surgical resection and repair as its main treatment methods. It mainly studies the occurrence, development, and clinical manifestations of surgical diseases in order to prevent and treat them. During the suturing of surgical incisions, excessive tension often occurs, causing the sutures to pull and tug at the tissues at both ends of the incision, increasing the difficulty of suturing. Therefore, tension relievers are needed to bring the tissues on both sides of the incision closer together to assist in suturing.

[0003] In existing technologies, adhesive patches are typically used to assist suturing by attaching them to the skin. However, these patches are prone to falling off when attached to the limbs. Due to the frequent movement of the limbs, it is difficult to keep the patches firmly attached. Furthermore, sweat or oil secreted by the skin can greatly affect the adhesion effect, resulting in poor performance. In addition, existing technologies are not good at reducing tension on wounds of different lengths, leading to wound dehiscence or poor healing after suturing, which affects patient recovery. Therefore, there is a need to propose a tension reducer for tension wound suturing. Summary of the Invention

[0004] The purpose of this invention is to address the problems in the prior art, where adhesive patches are typically used to assist suturing on the skin. However, these patches are prone to falling off when applied to the limbs. Due to the frequent movement of the limbs, it is difficult to maintain the adhesion of the patches stably. Furthermore, sweat or oil secreted by the skin can greatly affect the adhesion effect, resulting in poor performance. In addition, the prior art is difficult to achieve a good tension reduction effect on wounds of different lengths, leading to wound dehiscence or poor healing after suturing, which affects the patient's recovery. Therefore, this invention proposes a tension reducer for tension wound suturing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tension reducer for tension wound suturing includes a protective housing. The protective housing has an internal tension adjustment mechanism. The tension adjustment mechanism includes a first rotating shaft located outside the protective housing, a third rotating shaft fixedly connected to the outside of the first rotating shaft, a second fixing belt fixedly connected to the outside of the third rotating shaft, a first rotating wheel fixedly connected to the outside of the third rotating shaft, a belt drivingly connected to the outside of the first rotating wheel, a second rotating wheel drivingly connected to the side of the belt away from the first rotating wheel, a fourth rotating shaft fixedly connected to the outside of the second rotating wheel, and a first fixing belt fixedly connected to the outside of the fourth rotating shaft.

[0007] The first fixing belt is provided with a telescopic mechanism. The telescopic mechanism includes a first telescopic post provided outside the first fixing belt, a first rack fixedly connected to the outside of the first telescopic post, a gear meshing with the outside of the first rack, a second rack meshing with the outside of the gear, and a second telescopic post fixedly connected to the outside of the second rack.

[0008] The telescopic mechanism is symmetrically arranged, meaning that both the first and second fixing straps are equipped with telescopic mechanisms on their exteriors, which facilitates effective tension reduction based on the different wound lengths of the patients.

[0009] The above technical solution further includes:

[0010] The third rotating shaft has a third opening on its exterior, and a first threaded rod is threadedly connected to the third opening. The first threaded rod is threadedly connected to the protective box.

[0011] The third opening is provided in multiple ways to facilitate the fixing of the first threaded rod.

[0012] The first fixing belt is externally fixedly connected to a telescopic plate, and the telescopic plate is fixedly connected to the second telescopic column;

[0013] The telescopic plates are arranged symmetrically, meaning that a telescopic plate is also provided outside the second fixing belt.

[0014] The first telescopic column is externally fixedly connected to a first fixing block, the first fixing block is externally threadedly connected to a second threaded rod, the second threaded rod is externally fixedly connected to a second rotating shaft, and the second rotating shaft and the first fixing block are rotatably connected.

[0015] The first fixing block, the second threaded rod, and the second rotating shaft are all configured in multiples and distributed outside the first telescopic column and the second telescopic column.

[0016] The second threaded rod is externally threaded to a connecting sleeve, and a third threaded rod is threaded to the side of the connecting sleeve away from the second threaded rod.

[0017] The connecting sleeve and the third threaded rod are configured in multiple ways. When the second threaded rod rotates, it will cause the externally threaded connecting sleeve to rotate. The connecting sleeve and the third threaded rod are threadedly connected, meaning that when the threaded sleeve rotates, the third threaded rod will rotate.

[0018] The third threaded rod is externally threaded to a third fixing block, and the third fixing block is externally fixedly connected to a third telescopic column. The third telescopic column and the second fixing band are fixedly connected.

[0019] The third fixing block is provided in multiple ways, and each of them is threadedly connected to the third threaded rod.

[0020] The third rotating shaft is rotatably connected to a fixed sleeve, and the fixed sleeve is fixedly connected to a second fixed block. The second fixed block is fixedly connected to the protective box.

[0021] The fixing sleeve and the second fixing block are symmetrically arranged to ensure that the rotation state of the third and fourth rotating shafts remains stable.

[0022] The protective box has a first opening on its exterior, and the first telescopic column has a second opening on its exterior.

[0023] The first opening is symmetrically arranged to facilitate the adjustment of the tension of the first and second fixing straps.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. In this invention, when in use, by rotating the first rotating shaft, the third rotating shaft fixedly connected to the outside of the first rotating shaft will rotate. Then, with the cooperation of parts such as belt, first rotating wheel, second rotating wheel and first threaded rod, the tightness of the first fixing belt and the second fixing belt can be adjusted, which makes it easy to fix to the wound position of different patients' limbs and improve the effect of the tension reducer.

[0026] 2. In this invention, during use, the meshing connection between the first rack outside the first telescopic column and the second rack outside the second telescopic column and the gear allows the second telescopic column to extend or retract into the first telescopic column, thus facilitating the adjustment of the length of the telescopic plate according to the different wound sizes of the patient and improving the effectiveness of the tension reducer.

[0027] 3. In this invention, during use, the first threaded rod and the third hole on the third rotating shaft can fix the adjusted first and second fixing belts, giving the tension reducer a good fixing effect during use. With the cooperation of the second threaded rod, connecting sleeve and third threaded rod and other parts, the tension reducer can have a good tension reduction effect on the patient's wound, improving the patient's recovery speed. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of a tension-reducing device for tension wound closure proposed in this invention;

[0029] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the third three-dimensional structure of the present invention;

[0031] Figure 4 This is a schematic diagram of the fourth three-dimensional structure of the present invention.

[0032] Figure 5 for Figure 1 Enlarged view of point A in the middle;

[0033] Figure 6 for Figure 2 Enlarged view of point B in the middle;

[0034] Figure 7 for Figure 3 Enlarged view of point C in the middle;

[0035] Figure 8 for Figure 4 Enlarged view of point D;

[0036] Figure 9 for Figure 1 Enlarged diagram of point E in the middle.

[0037] In the diagram: 1. Protective box; 2. First rotating shaft; 3. First threaded rod; 4. First fixing belt; 5. Second fixing belt; 6. Telescopic plate; 7. First telescopic column; 8. Second telescopic column; 9. Connecting sleeve; 10. Second threaded rod; 11. First fixing block; 12. Second rotating shaft; 13. First opening; 14. First rack; 15. Gear; 16. Second rack; 17. Second opening; 18. Third rotating shaft; 19. Fixing sleeve; 20. Second fixing block; 21. First rotating wheel; 22. Belt; 23. Third opening; 24. Second rotating wheel; 25. Fourth rotating shaft; 26. Third threaded rod; 27. Third fixing block; 28. Third telescopic column. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the invention.

[0040] Example 1

[0041] like Figure 1-9 As shown, the present invention proposes a tension reducer for tension wound suturing, comprising a protective box 1, an internal tension adjustment mechanism, a first rotating shaft 2 disposed outside the protective box 1, a third rotating shaft 18 fixedly connected to the outside of the first rotating shaft 2, a second fixing belt 5 fixedly connected to the outside of the third rotating shaft 18, a first rotating wheel 21 fixedly connected to the outside of the third rotating shaft 18, a belt 22 drivingly connected to the outside of the first rotating wheel 21, a second rotating wheel 24 drivingly connected to the side of the belt 22 away from the first rotating wheel 21, a fourth rotating shaft 25 fixedly connected to the outside of the second rotating wheel 24, and a first fixing belt 4 fixedly connected to the outside of the fourth rotating shaft 25.

[0042] The first fixed belt 4 is provided with a telescopic mechanism. The telescopic mechanism includes a first telescopic column 7 provided outside the first fixed belt 4. A first rack 14 is fixedly connected to the outside of the first telescopic column 7. A gear 15 is meshed with the outside of the first rack 14. A second rack 16 is meshed with the outside of the gear 15. A second telescopic column 8 is fixedly connected to the outside of the second rack 16.

[0043] The working principle of the tension reducer for tension wound suturing proposed in this invention is as follows: rotating the first rotating shaft 2 causes the externally fixed third rotating shaft 18 to rotate. After the third rotating shaft 18 rotates, it causes the externally fixed second fixing belt 5 to contract on the third rotating shaft 18. After the third rotating shaft 18 rotates, it causes the externally fixed first rotating wheel 21 to rotate. The first rotating wheel 21 drives the externally driven belt 22 to drive the transmission. The belt 22 causes the transmission connected second rotating wheel 24 to rotate. After the second rotating wheel 24 rotates, it causes the externally fixed first fixing belt 4 to contract on the second rotating wheel 24, which facilitates the tension adjustment of the first fixing belt 4 and the second fixing belt 5.

[0044] The telescopic mechanism is symmetrically arranged, meaning that both the first fixing belt 4 and the second fixing belt 5 are equipped with telescopic mechanisms on their exteriors. This facilitates effective tension reduction based on the different wound lengths of the patients. Pushing the first telescopic column 7 causes the first rack 14, which is fixedly connected to the outside of the first telescopic column 7, to rotate the gear 15, which is meshed with the second rack 16. The gear 15 is meshed with the second rack 16, meaning that the rotation of the gear 15 will cause the second rack 16 to move. The second rack 16 is fixedly connected to the outside of the second telescopic column 8, meaning that the movement of the second rack 16 will cause the externally fixed second telescopic column 8 to extend or retract. This allows the length of the second telescopic column 8 to be adjusted according to the different wound sizes of the patients, improving the effectiveness of the tension reducer.

[0045] Example 2

[0046] like Figure 1-9As shown, based on Embodiment 1, a third opening 23 is provided on the outside of the third rotating shaft 18. A first threaded rod 3 is threadedly connected to the third opening 23. The first threaded rod 3 is threadedly connected to the protective box 1. A telescopic plate 6 is fixedly connected to the outside of the first fixing belt 4. The telescopic plate 6 is fixedly connected to the second telescopic column 8. A first fixing block 11 is fixedly connected to the outside of the first telescopic column 7. A second threaded rod 10 is threadedly connected to the outside of the first fixing block 11. A second rotating shaft 12 is fixedly connected to the outside of the second threaded rod 10. The second rotating shaft 12 is rotatably connected to the first fixing block 11. A connecting sleeve 9 is threadedly connected to the outside of the second threaded rod 10.

[0047] A third threaded rod 26 is threadedly connected to the side of the connecting sleeve 9 away from the second threaded rod 10. A third fixing block 27 is threadedly connected to the outside of the third threaded rod 26. A third telescopic column 28 is fixedly connected to the outside of the third fixing block 27. The third telescopic column 28 is fixedly connected to the second fixing band 5. A fixing sleeve 19 is rotatably connected to the outside of the third rotating shaft 18. A second fixing block 20 is fixedly connected to the outside of the fixing sleeve 19. The second fixing block 20 is fixedly connected to the protective box 1. A first opening 13 is opened on the outside of the protective box 1. A second opening 17 is opened on the outside of the first telescopic column 7.

[0048] The working principle of the tension-reducing device for tension wound suturing proposed in this invention is as follows: Based on Embodiment 1, multiple third openings 23 are provided to facilitate the fixation of the first threaded rod 3. That is, when it is necessary to adjust the tension of the first fixing band 4 and the second fixing band 5, the first threaded rod 3 is rotated. The first threaded rod 3 is threadedly connected to the protective box 1. At this time, the first threaded rod 3 is removed from the third opening 23. Then, the first rotating shaft 2 can be rotated to adjust the tension of the first fixing band 4 and the second fixing band 5. After the tension adjustment is completed, the first threaded rod 3 is rotated again to reinsert it into the third opening 23. At this time, due to the obstruction of the third rotating shaft 18 by the first threaded rod 3, the third rotating shaft 18 remains stable and cannot rotate, thus keeping the adjusted tension stable.

[0049] The telescopic plates 6 are symmetrically arranged, meaning that the telescopic plates 6 are also provided on the outside of the second fixing belt 5. The symmetrical arrangement of the telescopic plates 6 allows the second telescopic column 8 to extend and retract when it extends or retracts, which facilitates the adjustment of the length of the second telescopic column 8 and provides a good tension reduction effect on the patient's wound. There are multiple first fixing blocks 11, second threaded rods 10, and second rotating shafts 12, which are distributed on the outside of the first telescopic column 7 and the second telescopic column 8. When the length of the second telescopic column 8 is adjusted, the second telescopic column 8 will cause the externally fixed first fixing block 11 to extend or retract into the inside of the first telescopic column 7. After the length of the second telescopic column 8 is adjusted, the second rotating shaft 12 is rotated. The outside of the second rotating shaft 12 is fixedly connected to the second threaded rod 10, and the second threaded rod 10 is threadedly connected to the first fixing block 11. That is, rotating the second rotating shaft 12 will cause the second threaded rod 10 to rotate. There are multiple connecting sleeves 9 and third threaded rods 26. When the second threaded rod 10 rotates, it will cause the externally threaded connecting sleeve 9 to rotate.

[0050] The connecting sleeve 9 and the third threaded rod 26 are threadedly connected. That is, when the connecting sleeve 9 rotates, the third threaded rod 26 will rotate. There are multiple third fixing blocks 27, which are threadedly connected to the third threaded rod 26 respectively. The thread direction of the third threaded rod 26 is opposite to that of the second threaded rod 10. That is, when the third threaded rod 26 and the second threaded rod 10 rotate, the third fixing block 27 connected to the external thread of the third threaded rod 26 and the first fixing block 11 connected to the external thread of the second threaded rod 10 will move closer or further away from each other. This will drive the symmetrically arranged telescopic plates 6 to move closer or further away from each other, which can have a good tension reduction effect on the patient's wound and improve the patient's recovery speed and healing effect.

[0051] The fixing sleeve 19 and the second fixing block 20 are symmetrically arranged to ensure the stability of the rotation of the third rotating shaft 18 and the fourth rotating shaft 25. The fixing sleeve 19 is rotatably connected to the third rotating shaft 18 and fixedly connected to the second fixing block 20. The second fixing block 20 is fixedly connected to the protective box 1. That is, the fixing sleeve 19 supports the third rotating shaft 18 without affecting its rotation. The first opening 13 is symmetrically arranged to facilitate the adjustment of the tension of the first fixing belt 4 and the second fixing belt 5. The second opening 17 facilitates the meshing connection between the gear 15 and the first rack 14 and the second rack 16, so that the first telescopic column 7 and the second telescopic column 8 can extend and retract.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tension reducer for tension wound suturing, comprising a protective housing (1), characterized in that, The protective box (1) is provided with a tension adjustment mechanism. The tension adjustment mechanism includes a first rotating shaft (2) located outside the protective box (1). A third rotating shaft (18) is fixedly connected to the outside of the first rotating shaft (2). A second fixing belt (5) is fixedly connected to the outside of the third rotating shaft (18). A first rotating wheel (21) is fixedly connected to the outside of the third rotating shaft (18). A belt (22) is driven to the outside of the first rotating wheel (21). A second rotating wheel (24) is driven to the side of the belt (22) away from the first rotating wheel (21). A fourth rotating shaft (25) is fixedly connected to the outside of the second rotating wheel (24). A first fixing belt (4) is fixedly connected to the outside of the fourth rotating shaft (25). The first fixing belt (4) is provided with a telescopic mechanism. The telescopic mechanism includes a first telescopic column (7) provided outside the first fixing belt (4). A first rack (14) is fixedly connected to the outside of the first telescopic column (7). A gear (15) is meshed with the outside of the first rack (14). A second rack (16) is meshed with the outside of the gear (15). A second telescopic column (8) is fixedly connected to the outside of the second rack (16).

2. A tension reducer for tension wound closure according to claim 1, characterized in that, The third rotating shaft (18) has a third opening (23) on its outside. The third opening (23) is threadedly connected to a first threaded rod (3). The first threaded rod (3) is threadedly connected to the protective box (1).

3. A tension reliever for tension wound closure according to claim 1, characterized in that, The first fixing belt (4) is externally fixedly connected to a telescopic plate (6), and the telescopic plate (6) is fixedly connected to the second telescopic column (8).

4. A tension reliever for tension wound closure according to claim 1, characterized in that, The first telescopic column (7) is externally fixedly connected to a first fixing block (11), the first fixing block (11) is externally threadedly connected to a second threaded rod (10), the second threaded rod (10) is externally fixedly connected to a second rotating shaft (12), and the second rotating shaft (12) and the first fixing block (11) are rotatably connected.

5. A tension reliever for tension wound closure according to claim 4, characterized in that, The second threaded rod (10) is externally threaded with a connecting sleeve (9), and the connecting sleeve (9) is threaded with a third threaded rod (26) on the side away from the second threaded rod (10).

6. A tension reliever for tension wound closure according to claim 5, characterized in that, The third threaded rod (26) is externally threaded to a third fixing block (27), and the third fixing block (27) is externally fixedly connected to a third telescopic column (28). The third telescopic column (28) is fixedly connected to the second fixing band (5).

7. A tension reliever for tension wound closure according to claim 1, characterized in that, The third rotating shaft (18) is externally rotatably connected to a fixed sleeve (19), and the fixed sleeve (19) is externally fixedly connected to a second fixed block (20). The second fixed block (20) is fixedly connected to the protective box (1).

8. A tension reliever for tension wound closure according to claim 1, characterized in that, The protective box (1) has a first opening (13) on its exterior, and the first telescopic column (7) has a second opening (17) on its exterior.