Flap taking device applied to oral cavity

Abstract

The utility model discloses a skin flap taking device applied to an oral cavity, relates to the technical field of medical auxiliary tools, and aims to solve the problems that when palate skin flaps are cut, sharp blades are usually adopted for cutting, the sizes are not consistent, the widths are not uniform, the palate skin flaps are easily broken or cut off, appropriate soft tissue flaps cannot be obtained, suturing is not facilitated, and the palate skin flaps cannot be taken out easily. And later tissue healing and keratinized gingival formation are not facilitated. According to the flap taking device applied to the oral cavity, the flap cutting size can be adjusted according to needs, and observation is facilitated. Comprising a first connecting rod and a second connecting rod which are arranged in a crossed mode and rotationally connected, one ends of the first connecting rod and the second connecting rod are provided with a cutting part and a fixing part respectively, the other ends of the first connecting rod and the second connecting rod are provided with adjusting structures, the adjusting structures control the opening degree of the first connecting rod and the second connecting rod, and the cutting part is provided with a blade used for cutting.

Description

Technical Field

[0001] This utility model relates to the field of medical assistive device technology, specifically to a flap harvester for use in the oral cavity. Background Technology

[0002] When teeth are missing, dental implants are the best choice among various restorative methods, as they achieve the closest possible resemblance to natural teeth. Dental implants, also known as artificial teeth, do not involve planting actual natural teeth. Instead, through medical procedures, a precisely designed cylinder or other shape made of pure titanium metal with high biocompatibility is surgically implanted into the alveolar bone in the area of ​​the missing tooth. After 1-3 months, once the artificial root has integrated with the alveolar bone, a porcelain crown is then placed on top. Dental implants can achieve restorative results very similar to natural teeth in terms of function, structure, and aesthetics, and have become the preferred restorative method for an increasing number of patients with missing teeth. Due to their non-destructive nature, dental implants are widely recognized by the dental community as the preferred method for restoring missing teeth.

[0003] Before dental implant surgery, it is necessary to examine the patient's alveolar bone and gingival soft tissue. Many patients experience alveolar bone resorption and atrophy, as well as soft tissue atrophy, insufficient keratinized gingiva, or even complete tooth loss due to prolonged tooth loss. Numerous studies have shown a close relationship between insufficient keratinized gingiva and peri-implantitis. Gingival grafting is commonly used to address insufficient keratinized gingiva. The earliest and most common method for gingival grafting is palatal mucosal flap transplantation, which involves harvesting a skin flap from the palate, transferring it to the recipient area, and then suturing it. However, harvesting the flap often involves using a sharp blade, which can easily lead to inconsistent size and width, and may result in cuts or severance, making it difficult to obtain a suitable soft tissue flap. This hinders suturing and subsequent tissue healing and keratinized gingiva formation.

[0004] A search revealed Chinese patent CN213821840U, which discloses an oral mucosa harvesting mechanism. The mechanism includes a main body with a handle at one end and a harvesting part at the other end. The harvesting part includes a through groove and a blade at either the front or rear end. Pushing the mechanism allows the blade to cut the mucosa, which then passes through the through groove. This oral mucosa harvesting mechanism is simple and convenient to operate, allowing for rapid mucosa harvesting, shortening surgical time, and reducing patient discomfort. Furthermore, the harvested mucosa is regularly shaped, facilitating suturing.

[0005] Although the above-mentioned device can facilitate the removal of mucosa, the size of the removed skin flap is difficult to adjust and cannot be removed according to the actual situation. It has low adaptability and is not conducive to promotion. On the other hand, the removed skin flap enters the through groove, making it inconvenient to observe the length of the removed skin flap in real time. Summary of the Invention

[0006] To address the aforementioned problems, this invention aims to provide a flap harvester for oral cavity applications, which can adjust the size of the flap excision as needed and facilitates observation.

[0007] The main idea of ​​the technical solution adopted in this utility model is as follows: a scissor-shaped structure is designed, with one end as a hand-held part and the other end as a cutting part and a fixing part. The cutting length of the cutting part can be set by adjusting the structure of the hand-held part, so that the cutting length can be visualized in real time during the cutting process, which is convenient for operation. The cutting part is set as a detachable structure. The appropriate cutting part can be installed according to the required cutting width to complete the cutting. The other end is a fixing part, which is used to place on the jaw and on the part to be cut, so as to provide support and stability during the cutting process and avoid fatigue of the hands and arms caused by long-term suspended operation by medical staff, which may lead to operation errors.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A flap harvester for oral cavity includes a first connecting rod and a second connecting rod that are cross-arranged and rotatably connected. One end of the first connecting rod and the second connecting rod are respectively provided with a cutting part and a fixing part, and the other end is provided with an adjustment structure. The adjustment structure controls the opening and closing degree of the first connecting rod and the second connecting rod. The cutting part is provided with a blade for cutting.

[0010] Furthermore, the adjustment structure includes a mounting base on one side of the connecting rod 2, and an arc-shaped scale is provided on one side of the mounting base, the scale extending outward and penetrating the connecting rod 1.

[0011] Furthermore, the above technical solution includes a limiting frame fitted onto one end of the ruler that extends outward, and the limiting frame is slidably connected to the ruler.

[0012] Furthermore, the above technical solution includes a spring fitted onto the scale, with the spring located between the mounting base and the connecting rod.

[0013] Furthermore, the mounting base is provided with a receiving groove, one end of the spring is connected to the receiving groove, and the other end is connected to the connecting rod.

[0014] Furthermore, through the above technical solution, the cutting part is detachably connected to the first connecting rod, and the fixing part is connected to the second connecting rod.

[0015] The beneficial effects of this utility model are:

[0016] 1. Design a scissor-shaped structure, with one end as the hand-held part and the other end as the cutting and fixing part. The cutting length of the cutting part can be set by adjusting the adjustment structure in the hand-held part, so that the cutting length can be visualized in real time during the cutting process, which is convenient for operation.

[0017] 2. The cutting part is designed to be detachable. Simply install the appropriate cutting part according to the required cutting width to complete the cutting process.

[0018] 3. The other end is a fixing part, which is used to place on the jaw and the area to be cut, to provide support and stability during the cutting process, so as to avoid fatigue of the hands and arms caused by long-term suspended operation by medical staff, which may lead to operation errors; connecting rod one and connecting rod two are L-shaped rods with an angle of 90-120 degrees, which matches the angle of the jaw.

[0019] 4. The adjustment structure includes an arc-shaped scale structure with a limiting frame fitted on the scale. By fixing the limiting frame, the travel length of the cutting part can be adjusted, thereby adjusting the length of the cut skin flap. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 for Figure 1 Enlarged schematic diagram;

[0022] Figure 3 for Figure 1 Enlarged schematic diagram;

[0023] Figure 4 This is a three-dimensional structural diagram of the present invention from another angle;

[0024] Figure 5 This is a side view of the present invention;

[0025] The components are: 1. Connecting rod one; 2. Connecting rod two; 3. Operating ring; 4. Cutting part; 401. Blade holder; 402. Mounting groove; 403. Blade; 5. Fixing part; 501. Fixing rod; 6. Adjusting structure; 601. Mounting seat; 602. Scale; 603. Limiting frame; 604. Limiting plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] The inventors' research revealed that before dental implantation, it's necessary to examine the patient's alveolar bone and gingival soft tissue. Many patients experience alveolar bone resorption and atrophy, as well as soft tissue atrophy, insufficient keratinized gingiva, or even complete tooth loss due to prolonged tooth loss. Current research indicates a strong correlation between insufficient keratinized gingiva and peri-implantitis. Gingival transplantation is commonly used to address insufficient keratinized gingiva. The earliest and most common method for gingival transplantation is palatal mucosal flap transplantation, which involves harvesting a skin flap from the palate, transferring it to the implantation site, and then suturing it. However, harvesting the flap often involves using a sharp blade, which can lead to uneven thickness, inconsistent size, and inconsistent width. It's also easy to cut or sever the flap, resulting in an unsuitable soft tissue flap, hindering suturing, and negatively impacting subsequent tissue healing and keratinized gingiva formation.

[0028] Based on the above findings, this application proposes a flap harvester for oral cavity, designed with a scissor-like structure. One end is a handheld part, and the other end is configured as a cutting part 4 and a fixing part 5. The cutting length of the cutting part 4 can be set by adjusting the adjustment structure 6 in the handheld part, making the cutting length visible in real time during the cutting process, which is convenient for operation. The cutting part 4 is a detachable structure. The appropriate cutting part 4 can be installed according to the required cutting width to complete the cutting. The other end is the fixing part 5, which is used to place on the jaw and at the position to be cut, providing support and stability during the cutting process, avoiding fatigue of the hands and arms caused by long-term suspended operation by medical staff, which may lead to operation errors. The adjustment structure 6 includes an arc-shaped scale 602 structure, on which a limiting frame 603 is fitted. By fixing the limiting frame 603, the travel length of the cutting part 4 can be adjusted, thereby adjusting the length of the harvested flap. Example 1

[0029] See Figure 1 - Figure 5 This application discloses a flap harvester for oral cavity use, comprising a cross-arranged connecting rod 1 and a connecting rod 2, which are rotatably connected by a connecting shaft. An operating ring 3 is provided at one end of each connecting rod 1 and connecting rod 2, and is integrally connected to each connecting rod 1 and connecting rod 2, serving as a handheld part. During use, medical personnel hold both operating rings 3 for operation. The connecting rods 1 and 2 are L-shaped rods with an angle of 90-120 degrees, and the bend is at the end furthest from the operating ring 3.

[0030] The other ends of connecting rod 1 and connecting rod 2 are respectively provided with a cutting part 4 and a fixing part 5. The cutting part 4 is provided on the connecting rod 1, which is positioned slightly higher, and the fixing part 5 is provided on the connecting rod 2, which is positioned slightly lower.

[0031] The cutting part 4 includes a blade 403 seat 401 disposed on the outside of the connecting rod 1. The blade 403 seat 401 is detachably connected to the connecting rod 1 by bolts, facilitating installation and disassembly, as well as subsequent cleaning and disinfection. A mounting groove 402 for mounting the blade 403 is provided below the blade 403 seat 401. The blade 403 is bolted to the mounting groove 402, and bolt mounting holes are provided on both sides of the mounting groove 402. The blade 403 is an arc-shaped blade, with its cutting edge facing the connecting rod 2, and its height is lower than that of the fixing part 5.

[0032] The fixing part 5 includes a fixing rod 501 disposed on the outside of the connecting rod 2. The height of the fixing rod 501 is greater than the height of the connecting rod 2 and extends downward. The height of the bottom of the fixing rod 501 is higher than the height of the blade 403.

[0033] When in use, medical staff hold two operating rings 3, insert connecting rod 2 and connecting rod 1 into the patient's mouth, place the fixing part 5 on one side of the cutting position, and keep connecting rod 2 stable. Slowly move connecting rod 1 to cut the skin flap at the cutting position, that is, between the cutting part 4 and the fixing part 5. Example 2

[0034] refer to Figure 1 - Figure 5 An adjustment structure 6 is provided on one side of the handle of the connecting rod. The cutting length of the cutting part 4 can be set by adjusting the adjustment structure 6, so that the cutting length can be visualized in real time during the cutting process, which is convenient for operation.

[0035] A mounting base 601 is provided on one side of the connecting rod 2. The mounting base 601 is in the same direction as the operating ring 3 of the connecting rod 2, and the mounting base 601 is bolted to the connecting rod 2. An arc-shaped receiving groove is provided in the mounting base 601, and an arc-shaped scale 602 is fixedly connected in the receiving groove. One end of the scale 602 is fixedly connected to the receiving groove, and the other end passes through the connecting rod 1 and extends outward. The scale 602 is provided with a scale, and the scale corresponds to the travel length of the near end of the blade 403.

[0036] A limiting frame 603 is fitted onto one end of the scale 602 extending outward. The upper surface of the limiting frame 603 is fan-shaped, and the limiting frame 603 slides on the scale 602. A limiting plate 604 is provided at one end of the scale 602 to prevent the limiting frame 603 from falling off. The limiting plate 604 is bolted to the scale 602. A spring is fitted onto the scale 602. One end of the spring is located in the receiving groove and is fixedly connected to the inner wall of the receiving groove. The other end is fixedly connected to the end of the connecting rod 1 near the mounting base 601. During the opening and closing of the connecting rod 1 and the connecting rod 2, the spring provides cushioning to prevent excessively rapid cutting and uneven skin flap thickness. When the connecting rod 1 and the connecting rod 2 are fully closed, the spring can fully retract into the receiving groove.

[0037] A fixing groove is provided on one side of the scale 602, and a threaded groove is provided on one side of the limiting frame 603. The limiting frame 603 is fixed by a bolt structure that engages with the fixing groove. When the limiting frame 603 needs to be fixed, the bolt structure is screwed into the threaded groove and tightened to press against the fixing groove, thereby fixing the limiting frame 603. The fixing of the limiting frame 603 restricts the opening and closing angles of connecting rod 1 and connecting rod 2, thus limiting the travel length of the blade 403 and controlling the length of the skin flap cut. Example 3

[0038] To improve the applicability of the device, various sizes of cutting sections 4 can be provided. When in use, the appropriate size can be installed as needed. The length of the blade 403 is set to 4-10mm, and the height difference between the blade 403 and the fixing rod 501 is 1.0-1.5mm.

[0039] The usage process of this utility model is as follows:

[0040] 1. During use, install the appropriate size cutting section 4 as needed, then fix the limiting frame 603 according to the required flap length. Screw the bolt structure into the threaded groove and tighten it to press against the fixing groove, thereby fixing the limiting frame 603. Fixing the limiting frame 603 restricts the opening and closing angle of connecting rod 1 and connecting rod 2, thereby limiting the travel length of the blade 403 and thus controlling the length of the cut flap.

[0041] 2. When using, medical staff hold two operating rings 3, insert the cutting part 4 and the fixing part 5 into the patient's mouth, place the fixing part 5 at the position to be cut, and press the operating ring 3 connected to the connecting rod 2 to keep the connecting rod 2 and the fixing part 5 stable. Slowly move the connecting rod 1 and cut the skin flap at the cutting position through the blade 403.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flap harvester for use in the oral cavity, characterized in that: It includes a connecting rod 1 (1) and a connecting rod 2 (2) that are cross-connected and rotatably connected. One end of the connecting rod 1 (1) and the connecting rod 2 (2) is provided with a cutting part (4) and a fixing part (5), respectively, and the other end is provided with an adjustment structure (6). The adjustment structure (6) controls the opening and closing degree of the connecting rod 1 (1) and the connecting rod 2 (2). The cutting part (4) is provided with a blade (401) for cutting.

2. The flap harvester for oral cavity according to claim 1, characterized in that: The adjustment structure (6) includes a mounting base (601) on one side of the connecting rod (2), and an arc-shaped scale (602) is provided on the mounting base (601). The scale (602) extends outward and passes through the connecting rod (1).

3. A flap harvester for oral cavity application according to claim 2, characterized in that: A limiting frame (603) is fitted onto one end of the ruler (602) that extends outward, and the limiting frame (603) is slidably connected to the ruler (602).

4. A flap harvester for oral cavity application according to claim 3, characterized in that: A spring is fitted on the scale (602), and the spring is located between the mounting base (601) and the connecting rod (1).

5. A flap harvester for oral cavity application according to claim 4, characterized in that: The mounting base (601) has a receiving groove, one end of the spring is connected to the receiving groove, and the other end is connected to the connecting rod (1).

6. A flap harvester for oral cavity application according to claim 1, characterized in that: The connecting rod one (1) and the connecting rod two (2) are L-shaped rods with an angle of 90-120 degrees.

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