A tool for soft tissue flap traction and tension testing

Abstract

The utility model discloses a tool for soft tissue flap traction and tension test, including tool body, the both ends of tool body are equipped with first work head and second work head respectively, first work head and second work head are all the curved structure of edge smooth, the section of first work head and second work head are all flat obtuse structure, first work head tail end is equipped with round hole, the side of first work head is equipped with opening, and the round hole is connected through the passage with the opening, and the round hole, opening, passage all pass through first work head. The utility model discloses the tool has integrated suture fixation, soft tissue traction and the function such as testable soft tissue tension, can significantly simplify the operation, reduce the damage to the transplant tissue to improve the precision and efficiency of operation.

Description

Technical Field

[0001] This utility model relates to a tool for soft tissue flap traction and tension testing, used in periodontal tunnel surgery, and belongs to the field of medical device technology. Background Technology

[0002] In oral soft tissue transplantation surgery (such as connective tissue transplantation, free gingival transplantation, etc.), it is often necessary to prepare a submucosal tunnel flap in the recipient area. The traditional procedure is as follows: first, the mucosa is cut with a scalpel, and then blunt dissection is performed using instruments such as periosteal elevators to form a tunnel. Subsequently, the surgeon needs to grasp the sutured soft tissue flap with instruments and painstakingly pass it through the narrow tunnel and pull it to the predetermined position.

[0003] However, existing technologies have the following obvious drawbacks: 1. Difficulty in threading: In narrow tunnels, especially periodontal tunnels that require threading multiple teeth, the tunnels are long and narrow, making it very inconvenient to hold the sutures with instruments and thread them. The sutures are prone to slipping and are difficult to pass through. Furthermore, the tissues need to be held multiple times, which increases the trauma to the transplanted tissues and affects their survival rate.

[0004] 2. Risk of soft tissue flap perforation: During the suture process, due to the lack of effective guidance, the sutures or instruments are prone to deviate from the intended path, resulting in soft tissue flap perforation and affecting the postoperative healing effect.

[0005] 3. Low precision: It is difficult to accurately control the final position of the tissue block within the tunnel, which may affect the surgical outcome.

[0006] 4. High skill requirements for doctors: The entire suture process relies heavily on the doctor's experience and touch, resulting in a steep learning curve.

[0007] Therefore, there is an urgent need for a specialized instrument that can integrate tension testing and tissue penetration functions, simplifying operation, reducing tissue damage, and improving surgical success rate. Utility Model Content

[0008] The technical problem this invention aims to solve is: how to integrate tension testing and tissue penetration functions to simplify operation, reduce tissue damage, and improve surgical success rate.

[0009] To solve the above-mentioned technical problems, the technical solution of this utility model is to provide a tool for soft tissue flap traction and tension testing. The tool body includes a tool body with a first working head and a second working head at both ends. Both the first working head and the second working head are curved structures with smooth edges. Both the first working head and the second working head have flat and blunt cross-sections. The end of the first working head is provided with a circular hole, and the side of the first working head is provided with an opening. The circular hole and the opening are connected by a channel. The circular hole, the opening, and the channel all penetrate the first working head.

[0010] Preferably, the curvature of the first working head is adapted to the curvature of the alveolar process of the human jawbone.

[0011] Preferably, the opening is a long and narrow structure; the size of the opening and the width of the channel are both smaller than the diameter of the circular hole.

[0012] Preferably, the circular hole is located on the central axis of the end of the first working head.

[0013] Preferably, the channel is a right-angled channel.

[0014] Preferably, the edge of the channel has a polished, rounded structure.

[0015] Preferably, the tool body includes a handle and connecting rods, with one end of each of the two connecting rods connected to both ends of the handle, and the other ends of the two connecting rods connected to the first working head and the second working head.

[0016] Preferably, the handle, connecting rod, first working head, and second working head are integrally formed.

[0017] Preferably, the handle is covered with an engineering plastic layer; the handle is ergonomically shaped for gripping.

[0018] Preferably, the connecting rod is a slender, rigid structure.

[0019] This utility model tool integrates functions such as suture fixation, soft tissue traction, and soft tissue tension testing, which can significantly simplify surgical procedures, reduce damage to transplanted tissues, and improve the accuracy and efficiency of surgery.

[0020] During periodontal tunnel surgery, the tool of this invention can not only be used for soft tissue flap tension testing, but also guide sutures and soft tissue flaps through the prepared periodontal tunnel, facilitating the subsequent use of U-shaped sutures to complete oral soft tissue transplantation.

[0021] Compared with the prior art, the specific advantages of this utility model are as follows: 1. Simple operation and extremely high efficiency: It greatly shortens the operation time and improves the efficiency of the operation.

[0022] 2. Significantly reduces tissue damage: It avoids the need for repeated clamping and pulling of transplanted tissue with instruments such as vascular clamps, thus maximizing the protection of the viability and integrity of the transplant and greatly reducing the risk of tunnel valve perforation, thereby improving the success rate of the surgery.

[0023] 3. Precise positioning: The U-shaped suture reaches the farthest end of the tunnel synchronously with the working head, and the precise position control ensures the predictability of the surgical outcome.

[0024] 4. Multifunctional integrated design: The structure is ingenious and highly practical. It is specially designed for soft tissue transplantation surgery and has the functions of tension testing and soft tissue traction, which has good clinical application prospects. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a tool used for soft tissue flap traction and tension testing. Detailed Implementation

[0026] To make this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings.

[0027] This invention provides a tool for soft tissue flap traction and tension testing, such as... Figure 1 As shown, it includes a handle 3, connecting rods 2, a first working head 1, and a second working head 4. A connecting rod 2 is connected to each end of the handle 3, and the two connecting rods 2 are connected to the first working head 1 and the second working head 4, respectively. The first working head 1 is the traction end, and the second working head 4 is the testing end.

[0028] The second working head has a flat, blunt cross-section with smooth edges, allowing for easy and non-invasive entry into the periodontal tunnel. Designed to be curved to contact and lift tissue flaps from different angles for tension testing, it does not possess traction capabilities.

[0029] The first working head 1 also has a flat, blunt cross-section with smooth edges, allowing for non-invasive access to the periodontal tunnel. Its side has a narrow opening 12, which connects to a 90-degree bend in the channel 13 inside the first working head 1. This channel 13 ultimately communicates with a circular hole 11 on the central axis of the first working head 1. This circular hole 11 is used to accommodate and guide sutures during surgery, while the right-angled channel 13 effectively prevents accidental suture dislodgement during guidance. The entire edge of the channel 13 is polished and rounded to avoid cutting or abrading the sutures during operation. The circular hole 11, opening 12, and channel 13 all penetrate the first working head 1. The size of the opening 12 and the width of the channel 13 are both smaller than the diameter of the circular hole 11. Furthermore, the first working head 1 is designed with a physiological curve that conforms to the curvature of the alveolar process of the human jawbone. This curvature allows it to slide roughly in contact with the transplantation area during traction, preventing lateral perforation and avoiding the risk of tunnel perforation, thus ensuring safe and precise traction operation.

[0030] The handle 3, connecting rod 2, first working head 1 and second working head 4 are integrally molded structures, and a layer of engineering plastic is wrapped around the handle 3 to form an ergonomic grip shape, avoiding the instrument being too bulky, providing the operator with a stable and precise grip, reducing fatigue and preventing slippage, and facilitating fine operation and control of the instrument's movement in the tunnel.

[0031] The connecting rod 2 is a slender, rigid structure that connects the first working head 1, the second working head 4, and the handle 3.

[0032] The tool of this invention is made of high-strength stainless steel or titanium alloy in one piece to ensure that it has sufficient rigidity (toughness), strength and aseptic safety during surgery.

[0033] The usage process of this utility model is as follows: The doctor first administers local anesthesia to the patient. At the start of the surgery, a piece of appropriately sized soft tissue is taken for transplantation, the sutures are threaded through it, and it is placed aside in preparation for U-shaped suturing.

[0034] Pick up the tool of this invention, insert the two free ends of the suture through the suture entrance (i.e., opening 12) into the channel 13, and bring them out through the round hole 11. At this time, the transplanted tissue is connected to the first working head 1 through the suture. After making an incision in the implantation area, the doctor holds the handle 3 and pushes the first working head 1, which has been connected with the suture and tissue, into the periodontal tunnel and advances it forward. During this process, the suture and the transplanted tissue connected to it are smoothly and naturally dragged along the tool into the tunnel. When the first working head 1 reaches the predetermined position at the end of the tunnel, the doctor gently pulls the suture out through the channel 13 and opening 12 with his fingers and releases it. Then, he carefully pulls the entire tool back along the original path. At this time, the suture remains in the tunnel, while the transplanted tissue has been accurately and firmly pulled and pressed against the implantation area (target position), sutured for fixation, and the operation is completed.

[0035] The second working head 4 is only used for soft tissue flap tension testing. That is, by gently pressing the second working head 4 against the soft tissue in the surgical area, the tension is tested. If the soft tissue has a certain degree of mobility and is not overstretched under the gentle pressure, and can naturally return to its original position after the pressure is stopped, it proves that the soft tissue tension is normal.

Claims

1. A tool for soft tissue flap traction and tension testing, characterized in that, The tool body includes a first working head (1) and a second working head (4) at its two ends. Both the first working head (1) and the second working head (4) are curved structures with smooth edges. Both the first working head (1) and the second working head (4) have flat and blunt cross-sections. The end of the first working head (1) is provided with a round hole (11). The side of the first working head (1) is provided with an opening (12). The round hole (11) and the opening (12) are connected by a channel (13). The round hole (11), the opening (12), and the channel (13) all penetrate the first working head (1).

2. The tool for soft tissue flap traction and tension testing as described in claim 1, characterized in that, The curvature of the first working head (1) is adapted to the curvature of the alveolar process of the human jawbone.

3. The tool for soft tissue flap traction and tension testing as described in claim 1, characterized in that, The opening (12) is a long and narrow structure; the size of the opening (12) and the width of the channel (13) are both smaller than the diameter of the circular hole (11).

4. The tool for soft tissue flap traction and tension testing as described in claim 1, characterized in that, The circular hole (11) is located on the central axis of the end of the first working head (1).

5. The tool for soft tissue flap traction and tension testing as described in claim 1, characterized in that, The channel (13) is a right-angle channel.

6. A tool for soft tissue flap traction and tension testing as described in claim 1 or 5, characterized in that, The edge of the channel (13) is a polished rounded structure.

7. The tool for soft tissue flap traction and tension testing as described in claim 1, characterized in that, The tool body includes a handle (3) and connecting rods (2). The two ends of the handle (3) are respectively connected to one end of the two connecting rods (2), and the other ends of the two connecting rods (2) are connected to the first working head (1) and the second working head (4).

8. A tool for soft tissue flap traction and tension testing as described in claim 7, characterized in that, The handle (3), connecting rod (2), first working head (1) and second working head (4) are integrally formed.

9. A tool for soft tissue flap traction and tension testing as described in claim 7, characterized in that, The handle (3) is covered with an engineering plastic layer; the handle (3) is ergonomically shaped for holding.

10. A tool for soft tissue flap traction and tension testing as described in claim 7, characterized in that, The connecting rod (2) is a slender rigid structure.

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