An apparatus and method for preparing extended incisions from free connective tissue strips.

Abstract

This invention discloses an apparatus and method for preparing extended incisions from free connective tissue strips, belonging to the field of oral implant technology. The apparatus includes a beak portion comprising two beak plates, one of which has positioning blocks spaced apart along its length, ensuring a gap between the two beak plates after alignment. A first and second incision are provided on each beak plate, with the first and second incisions alternately spaced. This method effectively prevents slippage and tearing of the free connective tissue during cutting, achieving precise positioning and guidance of the extended incision, ensuring uniform incision position, spacing, and angle, and improving cutting efficiency.

Description

Technical Field

[0001] This invention belongs to the field of oral implant technology, specifically relating to an apparatus and method for preparing free connective tissue strips to extend the incision. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] Dental implantology has become the preferred clinical solution for restoring missing teeth. The width and quality of the keratinized gingiva around the implant directly affect the long-term stability of the implant and the aesthetic results of the soft tissue. In clinical practice, free connective tissue transplantation is commonly used. Free connective tissue grafts are obtained from the hard palate donor site to widen, thicken, or reconstruct the keratinized gingiva around the implant, thereby improving the soft tissue sealing effect and long-term prognosis.

[0004] The length of free connective tissue that can be harvested from the palatal donor site is strictly limited by anatomical conditions. For edentulous areas with a long span or recipient areas with multiple consecutive missing teeth, the length of a single tissue slice often cannot directly meet the restoration requirements. It is necessary to prepare the tissue slice by extending the incision and processing it into a fence-like structure to stretch and extend it in order to match the length requirements of the recipient area.

[0005] The existing technology has the following technical problems: First, free connective tissue is soft and smooth, making it extremely prone to displacement and slippage during incision preparation, and lacks stable and reliable fixation methods. When the surgeon holds it by hand or with conventional instruments, it is difficult to keep the tissue in a flat and relaxed state, and the scalpel cannot be used stably. This not only greatly increases the difficulty of the operation, but also easily causes unplanned tearing and damage to the tissue, resulting in the waste of precious transplanted tissue, and in severe cases, it can lead to the interruption or failure of the operation.

[0006] Secondly, relying entirely on the surgeon's experience for manual operation makes it difficult to uniformly control the position, spacing, length, and angle of the incisions. This easily leads to problems such as inconsistent incision depth, uneven distribution, and directional deviation, failing to form a regular and effective fence-like extension structure. Ultimately, this fails to achieve the expected tissue lengthening effect, affecting the morphological and functional recovery of soft tissue after transplantation. Due to unstable tissue fixation and difficulty in controlling incision precision, the surgeon needs to repeatedly adjust the tissue position and blade angle, resulting in prolonged operation time, increased patient discomfort and surgical infection risk, and reduced clinical diagnostic and treatment efficiency. Summary of the Invention

[0007] To address the aforementioned problems, this invention provides an apparatus and method for preparing extended incisions from free connective tissue strips. This method effectively prevents slippage and tearing of free connective tissue during cutting, achieves precise positioning and guidance of the extended incision, ensures uniformity in incision position, spacing, and angle, and improves cutting efficiency.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: An apparatus for preparing an extended incision for free connective tissue strips includes a beak, the beak comprising two beak plates, one of which has positioning blocks spaced apart along its length, the positioning blocks ensuring that the two beak plates are aligned with a gap; the beak plates are provided with a first cutting opening and a second cutting opening, the first cutting opening and the second cutting opening being alternately spaced apart.

[0009] As a further technical solution, the first cutting opening is located in the middle of the beak plate, and several first cutting openings are spaced apart along the length direction of the beak plate.

[0010] As a further technical solution, the second cutting opening is located at the upper and lower ends of the beak plate, and several second cutting openings are spaced apart along the length direction of the beak plate.

[0011] As a further technical solution, a marking line is provided at the center of the beak plate.

[0012] As a further technical solution, one end of the positioning block is fixedly connected to a beak plate, and the other end of the positioning block is in close contact with the surface of another beak plate.

[0013] As a further technical solution, free connective tissue is placed within the interval, and the spacing of the interval is less than the thickness of the free connective tissue.

[0014] As a further technical solution, both the first and second cutting openings penetrate the beak plate, and the first and second cutting openings are parallel.

[0015] As a further technical solution, a clamp arm is provided at one end of the beak, the clamp arm includes two clamp arms, and the two clamp arms are respectively fixedly connected to a beak plate; the clamp arms are arranged crosswise, a central shaft is provided at the intersection, and the upper end of the clamp arm has an arc-shaped structure.

[0016] As a further technical solution, a locking part is provided at the lower end of the clamp arm, and a gripping part is provided at the bottom of the clamp arm.

[0017] A method of using an apparatus for preparing extended incisions of free connective tissue strips includes the following steps: The two beak plates are separated, and the free connective tissue is placed on one of the beak plates; then the two beak plates are joined together, and a positioning block is used to create a gap between the two beak plates to clamp the free connective tissue. Ensure that the first and second cutting edges of the two beak plates are aligned after they are joined to form a through cutting edge. Cut at the cutting edge position and use the cutting edge to guide the cutting, ensuring that the cutting direction and position are accurate. After cutting, the two beak plates are separated and the free connective tissue is removed, thus completing the extension of the free connective tissue.

[0018] Compared with the prior art, the advantages and positive effects of this invention are: The two beak plates of the beak portion of the present invention are kept at a constant interval by the positioning block, which can stably clamp the free connective tissue and prevent slippage and tearing; after merging, the first cutting opening and the second cutting opening are precisely aligned to form a cutting opening. The cutting opening limits the position, spacing and angle of the cutting opening to ensure that the cutting opening is uniform and regular, thereby forming a fence-like extension structure to achieve the extension of the free connective tissue.

[0019] Compared to existing technologies, this invention forms a stable clamping gap between the beak plate and the positioning block, which can effectively fix free connective tissue and prevent slippage and tearing; the first and second cutting edges on the beak plate are aligned to form a guide channel, which can precisely control the position, spacing and angle of the incision, ensuring that the incision is neat and uniform; the center marking line facilitates the rapid centering of the tissue, making the operation simple, reliably achieving tissue extension and improving surgical efficiency. Attached Figure Description

[0020] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0021] Figure 1 This is a schematic diagram of the device for preparing extended incisions of free connective tissue strips according to the present invention; Figure 2 This is a partially enlarged view of the apparatus for preparing extended incisions of free connective tissue strips according to the present invention; Figure 3 This is a schematic diagram of the open state of the apparatus for preparing extended incisions of free connective tissue strips according to the present invention; Figure 4 This is a schematic diagram of the beak plate of the present invention; In the diagram: 1. Beak; 11. Beak plate; 12. First cutting edge; 13. Second cutting edge; 14. Center marking line; 15. Positioning block; 16. Spacing; 2. Arm; 3. Central shaft; 4. Grip; 5. Locking part. Detailed Implementation

[0022] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless otherwise expressly indicated by the invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. Existing techniques have significant drawbacks: free connective tissue is soft and smooth, making it prone to displacement and slippage during surgery, lacking reliable fixation, and easily causing tissue tearing and damage, resulting in wasted transplant material. Furthermore, the incision location and length are difficult to control precisely, making it impossible to form a regular structure and affecting the lengthening effect. The procedure is also cumbersome and time-consuming, increasing the risk of infection and the probability of surgical failure.

[0024] Example 1: The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses an apparatus for preparing an elongated incision for free connective tissue strips, such as... Figure 1 , Figure 2 as well as Figure 3 As shown, it includes a beak 1, which includes two beak plates 11. One of the beak plates 11 is provided with positioning blocks 15 at intervals along its length. The positioning blocks 15 ensure that the two beak plates 11 are aligned and have a gap 16. A first cutting opening 12 and a second cutting opening 13 are provided on the beak plate 11, and the first cutting opening 12 and the second cutting opening 13 are alternately provided at intervals.

[0025] Specifically, the two beak plates 11 of the beak 1 are kept at a constant interval 16 by the positioning block 15, which can stably clamp the free connective tissue and prevent slippage and tearing; after merging, the first cutting opening 12 and the second cutting opening 13 are precisely aligned to form a cutting opening. The cutting opening limits the position, spacing and angle of the cutting opening to ensure that the cutting opening is uniform and regular, thereby forming a fence-like extension structure to achieve the extension of the free connective tissue.

[0026] The beak plate 11 and the positioning block 15 form a stable clamping interval 16, which can effectively fix the free connective tissue and avoid slippage and tearing. The first cutting port 12 and the second cutting port 13 on the beak plate 11 are aligned to form a guide channel, which can accurately control the position, spacing and angle of the incision and ensure that the incision is neat and uniform. The center marking line 14 facilitates the rapid centering of the tissue, which is simple to operate, can reliably achieve tissue extension and improve surgical efficiency.

[0027] The first cutting opening 12 is located in the middle of the beak plate 11, and several first cutting openings 12 are spaced apart along the length direction of the beak plate 11. The second cutting opening 13 is located at the upper and lower ends of the beak plate 11, and several second cutting openings 13 are spaced apart along the length direction of the beak plate 11.

[0028] Specifically, the first cutting opening 12 is located in the middle region of the beak plate 11, and several are evenly spaced along the length of the beak plate 11. This is used to form multiple equidistant core extension incisions in the main region of the free connective tissue, providing the main cutting path for the overall extension of the tissue and ensuring uniform extension in the middle of the tissue.

[0029] The second cutting opening 13 is located at the upper and lower edge areas of the beak plate 11, and several are evenly spaced along the length of the beak plate 11. They are alternately distributed with the first cutting opening 12 in the middle. They can form auxiliary cutting channels at the upper and lower edges of the free connective tissue. Together with the first cutting opening 12, they make the tissue as a whole into a regular fence shape, and the force is even when it is extended, making it less prone to tearing.

[0030] A center marker line 14 is set at the center of the beak plate 11.

[0031] Specifically, a center marker line 14 is set at the center of the beak plate 11 as an alignment reference for the placement of free connective tissue. This allows the tissue to be quickly and accurately positioned in the center of the width direction of the beak plate 11, ensuring symmetrical alignment of the two sides of the cut and avoiding cut deviation and asymmetrical tissue extension. Even small free connective tissue can be positioned in the center by the center marker line 14, thus ensuring accurate cutting position.

[0032] One end of the positioning block 15 is fixedly connected to a beak plate 11, and the other end of the positioning block 15 is in close contact with the surface of another beak plate 11.

[0033] Specifically, one end of the positioning block 15 is fixedly connected to one of the beak plates 11, and the other end is pressed against the surface of the other beak plate 11 when the beak plate 11 is closed. This is used to limit the relative position of the two beak plates 11 after they are closed, ensuring that the two beak plates 11 are always parallel and aligned, while also stably limiting the size of the clamping interval 16 to avoid clamping too tightly or too loosely.

[0034] More specifically, the positioning block 15 is disposed along the length of the beak plate 11 and between the second cutting openings 13, thereby preventing the tissue from slipping out. The end of the positioning block 15, which is located at the corner, is spaced from the end of the beak plate 11, so that when the tissue length is long, both ends of the tissue can extend out, thus making it suitable for longer tissues.

[0035] Free connective tissue is placed within intervals of 16, the spacing of which is less than the thickness of the free connective tissue.

[0036] Specifically, after the two beak plates 11 are closed, they form a clamping gap 16. The distance between these gaps 16 is less than the thickness of the free connective tissue, so that the tissue is moderately compressed and will not shift, slip or wrinkle during the cutting process, maintaining a flat and smooth state, thus providing a basis for precise cutting.

[0037] The first cutting opening 12 and the second cutting opening 13 both penetrate the beak plate 11, and the first cutting opening 12 and the second cutting opening 13 are parallel.

[0038] Specifically, both the first cutting opening 12 and the second cutting opening 13 penetrate the beak plate 11, and all cutting openings remain parallel to each other. After the two beak plates 11 are closed, the corresponding cutting openings on the upper and lower sides are completely aligned and connected, forming a continuous and straight blade guide channel. The cutting direction and angle are strictly limited to ensure that the cutting depth and direction are consistent.

[0039] One end of the beak 1 is provided with a clamp arm 2, which includes two clamp arms, each of which is fixedly connected to a beak plate 11; the clamp arms are arranged in a cross configuration, and a central shaft 3 is provided at the cross position.

[0040] Specifically, one end of the beak 1 is connected to the clamp arm 2, and the two clamp arms are fixed to the corresponding beak plates 11 as one unit. The clamp arms are arranged crosswise and a central shaft 3 is installed at the intersection, so that the clamp arms can open and close around the central shaft 3 as the fulcrum, thereby driving the two beak plates 11 to open and close synchronously and smoothly, completing the clamping and release of the tissue.

[0041] More specifically, the clamp arm 2 adopts the existing conventional medical clamp instrument structure, consisting of two symmetrical clamp arms. The front ends of the two clamp arms are fixedly connected to the corresponding beak plates 11, and the rear ends extend to form the operating end. The overall structure is stable under force and can reliably transmit clamping force to drive the beak plates 11 to complete the opening and closing action. The central shaft 3 adopts the existing general-purpose hinge shaft structure and is assembled at the intersection of the two clamp arms, serving as the rotation fulcrum of the clamp arms. This allows the two clamp arms to rotate flexibly around the central shaft 3 to open and close, ensuring that the opening and closing process of the beak plates 11 is smooth and the alignment is accurate.

[0042] A locking part 5 is provided at the lower end of the clamp arm 2, and a gripping part 4 is provided at the bottom of the clamp arm 2.

[0043] Specifically, a locking part 5 is provided at the lower end of the clamp arm, and a gripping part 4 is provided at the bottom. The gripping part 4 provides a stable force application point for hand operation, which is convenient for one-handed operation. The locking part 5 can lock the clamp arm in the closed position, so that the beak plate 11 can maintain a stable clamping state, fix the tissue without continuous force application, and make it convenient for doctors to complete the cutting operation independently.

[0044] More specifically, the locking part 5 adopts a commonly used snap-on or toothed locking structure, located at the lower end of the clamp arm. When closed, it automatically engages and locks, maintaining the clamping state between the clamp arm and the beak plate 11. When released, it can be quickly unlocked, making operation convenient and belonging to existing locking mechanisms. The gripping part 4 adopts a conventional finger ring gripping structure used in existing medical surgical instruments, located at the end of the clamp arm. This facilitates the doctor's application of force with one or more fingers, providing a stable grip and representing a mature and clinically applicable gripping structure.

[0045] The upper end of the clamp arm has an arc-shaped structure.

[0046] Specifically, the upper end of the clamp arm is designed with an arc-shaped structure, so that when the hand holds the grip part 4, the beak plate 11 can maintain a working angle that matches the operating field of vision. When holding the clamp, the doctor does not need to deliberately adjust the wrist position, so that the cutting edge can be smoothly aligned with the direction of the scalpel's movement, which is convenient for stable and continuous cutting.

[0047] Example 2: Based on Example 1, this example proposes a method for using an apparatus for preparing extended incisions of free connective tissue strips, comprising the following steps: Separate the two beak plates 11 and place the free connective tissue on one of the beak plates 11; then merge the two beak plates 11 together and use the positioning block 15 to create a gap 16 between the two beak plates 11 to clamp the free connective tissue. Ensure that after the two beak plates 11 are combined, their respective first cutting openings 12 and second cutting openings 13 are aligned to form a through cutting opening. Cut at the cutting opening position and provide guidance for cutting through the cutting opening to ensure accurate cutting direction and position. After cutting, the two beak plates 11 are separated and the free connective tissue is removed, thus completing the extension of the free connective tissue.

[0048] Specifically, by holding the gripping part 4 and applying external force, the clamp arm rotates around the central axis 3, causing the two beak plates 11 to open. The free connective tissue is then placed centered on one of the beak plates 11 along the central marking line 14. The central marking line 14 is used for quick positioning to ensure the tissue is centered and to avoid incision deviation.

[0049] Releasing the external force causes the clamp arms to close, and the positioning block 15 supports the two beak plates 11 to form a fixed interval 16, gently clamping the free connective tissue. The interval 16 is smaller than the tissue thickness, keeping the tissue flat and preventing slippage, thus stabilizing and fixing the tissue and preventing displacement, wrinkling, or tearing during cutting. At the same time, the locking part 5 locks the clamp arms, keeping the beak plates 11 in a clamping state.

[0050] The scalpel is passed sequentially through the two beak plates 11, aligning with the first incision 12 and the second incision 13, and cuts are made along the incisions. The incisions define the blade path, ensuring that the position, spacing, and angle of the incisions are uniform, forming a regular fence-like structure. The locking part 5 is released, and the beak plates 11 are opened, allowing the free connective tissue from the extended incision to be removed, thus achieving the extension of the free connective tissue.

[0051] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. An apparatus for preparing an elongated incision for free connective tissue strips, characterized in that, The device includes a beak portion, which includes two beak plates. One of the beak plates has positioning blocks spaced apart along its length, which ensures that the two beak plates are aligned with each other and have a gap. The beak plates are provided with a first cutting opening and a second cutting opening, which are alternately spaced apart.

2. The apparatus for preparing an elongated incision for free connective tissue strips as described in claim 1, characterized in that, The first cutting opening is located in the middle of the beak plate, and several first cutting openings are spaced apart along the length of the beak plate.

3. The apparatus for preparing an elongated incision for free connective tissue strips as described in claim 1, characterized in that, The second cutting opening is located at the upper and lower ends of the beak plate, and several second cutting openings are spaced apart along the length of the beak plate.

4. The apparatus for preparing an elongated incision for free connective tissue strips as described in claim 1, characterized in that, A marking line is set at the center of the beak plate.

5. The apparatus for preparing an elongated incision for free connective tissue strips as described in claim 1, characterized in that, One end of the positioning block is fixedly connected to a beak plate, and the other end of the positioning block is in close contact with the surface of another beak plate.

6. The apparatus for preparing an elongated incision for free connective tissue strips as described in claim 1, characterized in that, Free connective tissue is placed within the interval, and the spacing between the intervals is less than the thickness of the free connective tissue.

7. The apparatus for preparing an elongated incision for free connective tissue strips as described in claim 1, characterized in that, Both the first and second cutting openings penetrate the beak plate, and the first and second cutting openings are parallel.

8. The apparatus for preparing an elongated incision for free connective tissue strips as described in claim 1, characterized in that, One end of the beak is provided with a clamp arm, which includes two clamp arms, each of which is fixedly connected to a beak plate; the clamp arms are arranged in a cross configuration, with a central shaft at the cross position, and the upper end of the clamp arm has an arc-shaped structure.

9. The apparatus for preparing an elongated incision for free connective tissue strips as described in claim 8, characterized in that, The lower end of the clamp arm is provided with a locking part, and the bottom of the clamp arm is provided with a gripping part.

10. A method of using the apparatus for preparing an elongated incision for free connective tissue strips as described in any one of claims 1-9, characterized in that, Includes the following steps: The two beak plates are separated, and the free connective tissue is placed on one of the beak plates; then the two beak plates are joined together, and a positioning block is used to create a gap between the two beak plates to clamp the free connective tissue. Ensure that the first and second cutting edges of the two beak plates are aligned after they are joined to form a through cutting edge. Cut at the cutting edge position and use the cutting edge to guide the cutting, ensuring that the cutting direction and position are accurate. After cutting, the two beak plates are separated and the free connective tissue is removed, thus completing the extension of the free connective tissue.

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