Auxiliary device for fixing barrier membrane implanting nail in oral cavity bone increment surgery

Abstract

The utility model discloses an oral cavity bone increment operation barrier membrane nail planting fixing auxiliary device which comprises a handle portion, a fixing portion and a fixing portion. The bent clamping end comprises two arc-shaped cranks, the rear ends of the two cranks are connected with the front ends of the two grab handles through connecting pivots respectively, and separation and reunion of the two cranks are controlled through tightness clamping of the two grab handles; the sides, close to each other, of the front ends of the two cranks are detachably provided with the chuck parts used for clamping the barrier film in the folded state. According to the scheme, the barrier film is clamped and positioned through the modularized chuck part, the barrier film can be clamped and stabilized in a non-contact mode through operation optimization of the scissor-type and lever-type mechanical handles, and an unshielded nailing operation space can be provided; the problems that in a traditional oral cavity bone increment surgery, a membrane nail is difficult to fix and position, tired to operate and poor in adaptation are systematically solved.

Description

Technical Field

[0001] This utility model relates to the field of oral implant technology, specifically to an auxiliary device for fixing a barrier membrane implant in oral bone augmentation surgery. Background Technology

[0002] In the field of dental implantology, bone augmentation techniques for severe alveolar bone defects involve artificial intervention to promote bone tissue regeneration, providing sufficient bone volume for subsequent dental implant placement. Currently, in clinical practice, tent-shaped staples (titanium staples) are used to mechanically support the osteogenic space, combined with the physical isolation effect of a barrier membrane. This guides osteogenic cells to preferentially fill the bone defect area, achieving bone tissue repair. This approach is suitable for cases where bone resorption after tooth loss, bone destruction due to periodontal disease, or insufficient alveolar bone width / height caused by trauma or congenital malformations prevent direct implantation. In this process, the barrier membrane plays a crucial role, preventing soft tissue (such as fibroblasts) from invading the bone defect area, avoiding competition for growth space with osteoblasts, and ensuring preferential bone regeneration. Combined with tent-shaped staples, it further stabilizes the osteogenic space, preventing bone graft material displacement or compression by soft tissue. Some barrier membranes (such as absorbable collagen membranes) can also promote blood vessel ingrowth, providing a nutrient environment for bone regeneration.

[0003] Currently, the main steps in the barrier membrane covering and membrane fixation process are as follows: cut the gingiva and flap to expose the alveolar bone defect area; fill with artificial bone powder or autologous bone, and implant tent screws at the edge of the bone defect to support the bone formation space; cut the barrier membrane to the appropriate size to completely cover the bone graft area and tent screws, ensuring that the membrane edge extends beyond the edge of the bone defect; use micro titanium screws (membrane screws) to fix the barrier membrane at intervals at the edge of the barrier membrane, usually 4-6 screws are implanted to ensure that the membrane adheres tightly to the bone surface and does not shift.

[0004] However, there are currently many inconveniences and issues in the process of fixing barrier membranes using membrane staples:

[0005] 1. Obstruction of the operating field of vision: When fixing the membrane staples, the assistant needs to press the barrier membrane with his hand to maintain its position, but the hand will obstruct the implantation area of ​​the membrane staples, making it difficult for the surgeon to accurately locate the drilling or screw in the membrane staples, increasing the risk of operation error.

[0006] 2. Difficulty in matching membrane staple sizes: Membrane staples come in different diameters and lengths, requiring selection based on the location of the bone defect and the type of barrier membrane. Existing equipment lacks precise positioning aids, making it difficult to quickly match membrane staple sizes and determine implantation sites, thus affecting surgical efficiency.

[0007] 3. Insufficient barrier membrane stability: Uneven manual pressure may cause local displacement of the barrier membrane, especially in areas with uneven bone surfaces. The impact force during implantation of the membrane screw can easily cause the membrane to shift again, requiring repeated adjustments and prolonging the operation time.

[0008] 4. Lack of standardized positioning tools: Existing instruments mostly rely on the surgeon's experience for positioning, and there is a lack of standardized positioning devices for different membrane staple sizes, making it difficult to ensure the consistency of the implantation angle and depth of each membrane staple, which affects the barrier membrane fixation effect. Utility Model Content

[0009] To address the aforementioned shortcomings of existing technologies, this invention provides an auxiliary device for fixing barrier membrane implants in oral bone augmentation surgery. It is mainly used to treat severe alveolar bone defects caused by tooth loss, periodontal disease, trauma, or congenital malformations, providing sufficient bone support for subsequent dental implants and providing fixation and installation of the auxiliary barrier membrane. It solves the problems of difficult membrane fixation and positioning, tiring operation, and poor fit in traditional oral bone augmentation surgery.

[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0011] A device for fixing a barrier membrane implant in oral bone augmentation surgery is provided, comprising: a handle portion including two handles for easy gripping; a curved clamping end including two arc-shaped cranks, the rear ends of which are respectively connected to the front ends of the two handles via connecting pivots, and the engagement and disengagement of the two cranks are controlled by the tightening and loosening of the two handles; and clamping heads, each of which is detachably mounted on one side of the front ends of the two cranks that are close to each other, for clamping the barrier membrane in the retracted state.

[0012] Furthermore, the crank is a thin, flat rod, and the clamp head is a horizontally arranged plate-like structure perpendicular to the front end of the thin, flat rod.

[0013] Furthermore, the clamp head has transversely arranged U-shaped grooves at both ends, and the width of the U-shaped grooves is not less than the diameter of the ferrule head.

[0014] Furthermore, the lateral length of the clamp head is no greater than the width of the barrier membrane.

[0015] Furthermore, the extension directions of the front and rear ends of the crank are perpendicular to each other.

[0016] Furthermore, the two clamp heads are respectively set parallel to or at a certain angle to the plane where the two corresponding connected cranks are located and tilted outwards.

[0017] Furthermore, the middle of the clamp head is provided with a slot for engaging with the front end of the crank, and the clamp head and the front end of the crank are fixedly connected by bolts.

[0018] Furthermore, the contact surface between the clamp head and the barrier membrane is provided with several anti-slip stripes.

[0019] Furthermore, finger rings and finger handles are respectively provided on the two grips that are far apart from each other, and the grips, finger rings and finger handles are all covered with anti-slip rubber pads.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1. This solution enables unobstructed and stable clamping: Utilizing a scissor-like lever structure, the barrier membrane can be clamped without hand contact by manipulating the handle, avoiding finger pressure that obstructs the operating space and providing convenient clamping operation; the thin, flat crank structure reduces obstruction of the surgical field, and the clamping end face with parallel or beveled design allows for flexible angle adjustment in confined oral spaces, adapting to complex anatomical structures and enabling precise clamping of the barrier membrane. It is suitable for multiple locations in the oral cavity and is highly practical.

[0022] 2. This solution provides positioning assistance for membrane staples: the lateral length of the clamp head is less than the width of the barrier membrane, so that it will not obstruct the stapled area, and the U-shaped grooves on both sides of the clamp head can assist in the positioning of the staples, thereby ensuring the accuracy of the membrane staple placement and avoiding the deviation of the membrane staples caused by visual obstruction in traditional methods; the striped texture on the clamp head can enhance the stability of the clamping, so as to ensure that the barrier membrane does not shift during the stapled process.

[0023] 3. This solution adopts a modular design to achieve standardized production of the clamp head, which is detachably mounted on the front end of the handle to facilitate compatibility with different types of membrane staples, thereby reducing the doctor's memory burden and improving surgical efficiency. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of the barrier membrane fixation auxiliary device for oral bone augmentation surgery.

[0025] Figure 2 A schematic diagram of a barrier membrane fixation surgery for oral bone augmentation.

[0026] Figure 3 This is a schematic diagram illustrating the application of this method in surgery.

[0027] Figure 4 This is a schematic diagram illustrating the use of a post during surgery when implanting a staple in the lateral gingiva.

[0028] Figure 5 This is a diagram illustrating the usage of a post during surgery when implanting a staple to the inner gingiva.

[0029] Figure 6 This is a schematic diagram of the structure of the clamp head with a U-shaped groove.

[0030] Figure 7 This is a schematic diagram showing the assembly and disassembly of the clamp head.

[0031] Figure 8 This is a schematic diagram of the implantation structure when using a U-shaped groove for auxiliary positioning.

[0032] Wherein, 1—handle part, 11—grip, 12—finger ring, 13—finger handle; 2—bent clamping end, 21—crank, 22—mounting hole; 3—connecting pivot; 4—clamping head, 41—U-shaped groove, 42—screw hole, 43—…

[0033] — Bolt; 44 — Slot; 5 — Barrier membrane; 6 — Membrane pin; 7 — Gingives. Detailed Implementation

[0034] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0035] The oral bone augmentation surgery barrier membrane fixation auxiliary device of this scheme includes: a handle part 1, which includes two handles 11 for easy gripping; a curved clamping end 2, which includes two arc-shaped cranks 21, and the rear ends of the two cranks 21 are respectively connected to the front ends of the two handles 11 through a connecting pivot 3, and the engagement and disengagement of the two cranks 21 are controlled by the tightness and looseness of the two handles 11; and a clamping head 4 for clamping the barrier membrane in the closed state is detachably installed on the side of the front ends of the two cranks 21 that are close to each other.

[0036] In practice, based on the diameter of the stubble head 6 used in the surgery, a suitable clamping head 4 is selected from several specifications and models. The clamping head 4 is made in various specifications according to different widths of the U-shaped groove, so as to accurately match different stubble heads 6; a screw hole 42 is opened in the middle of the clamping head 4, which is aligned with the mounting hole 22 corresponding to the front end of the crank 21, and the clamping head 4 is installed and fixed on the end of the bent clamping end 2 by bolts 43; and a slot 44 is provided in the middle of the clamping head 4 to engage with the front end of the crank 21, so that the front end of the crank 21 is inserted into the slot 44 to complete the installation and improve stability.

[0037] Select the appropriate U-shaped groove size clamp head 4 for use according to the needs of the surgery, and prepare hook-shaped staple holder, straight staple holder, membrane staple 6, barrier membrane 5 and other instruments and consumables for later use; perform the operation according to the preliminary work of oral bone augmentation surgery, cut the gingiva 7 and flap, prepare the tent staple channel, prepare the nutrient hole to promote osteogenesis, screw in the tent staple to maintain the osteogenesis space, perform bone grafting, wrap the tent staple, and cover with barrier membrane 5.

[0038] The operator places their fingers on the ring 12 on one handle 11 and the handle 13 on the other handle 11. All handles 11, rings 12, and handles 13 are covered with anti-slip pads to increase grip stability. By pinching the handles 11 with their fingers, the two handles 11 are opened. At this time, the action at the connecting pivot 3 is transmitted to the curved clamping end 2, causing the curved clamping end 2 to open. The curved clamping end 2 is composed of two downward-curving cranks 21. The cranks 21 are thin, flat rod structures, and the extension directions of the front and rear ends of the cranks 21 are perpendicular to each other. This setting can reduce the obstruction of the surgical field.

[0039] The open clamp head 4 is placed in the oral cavity at the position where the barrier membrane 5 needs to be fixed. This position is within the covered area that needs to be clamped and fixed, and the operator's hand is located on both sides of the surgical area, without obstructing the operating area. The operator's fingers pinch the handle 1 to close the handle 11, which causes the curved clamping end 2 to retract, and the clamp head 4 clamps the barrier membrane 5, thereby fixing the barrier membrane 5. The clamp head 4 is a horizontal strip-shaped structure perpendicular to the front end of the crank 21, and its horizontal length is not greater than the width of the barrier membrane 5, so it will not obstruct the space for subsequent nailing operations.

[0040] The contact surface between the clamping head 4 and the barrier membrane 5 is textured with stripes to enhance the clamping stability of the barrier membrane 5 and ensure that the barrier membrane 5 does not shift during subsequent operations. The U-shaped grooves 41 at both ends of the clamping head 4 serve as auxiliary areas for nail insertion. The width of the U-shaped grooves 41 is not less than the diameter of the nail head of the membrane nail 6. The operating device is adjusted to a fine position so that the area of ​​the U-shaped grooves 41 is the nail insertion area. At this time, the clamping state is maintained to keep the barrier membrane 5 fixed. The membrane nail 6 is placed in the U-shaped grooves 41. The U-shaped grooves 41 provide precise positioning for the membrane nail 6, guiding the operator to use a hook-type nail holder or a straight nail holder to accurately insert the membrane nail 6 into the barrier membrane 5, completing the fixation operation of the barrier membrane 5.

[0041] In this design, the two clamp heads 4 are respectively parallel to or at a certain angle to the plane where the two corresponding cranks 21 are located, and are tilted outwards; so that the angle can be flexibly adjusted according to the actual situation in the narrow oral cavity space, better adapting to the complex anatomical structure, and implanting and fixing the barrier membrane 5 on both the inner and outer sides of the gingiva 7, completing the operation of implanting and fixing the barrier membrane 5 in the entire oral bone augmentation surgery.

[0042] In summary, this solution provides clamping and positioning of the barrier membrane 5 through modular clamping head 4, and optimizes the operation of scissor-type and lever-type mechanical handles to achieve non-contact clamping and stabilization of the barrier membrane 5, and provides unobstructed nailing operation space. It systematically solves the problems of difficult fixation and positioning of membrane nails 6, tiring operation, and poor adaptability in traditional oral bone augmentation surgery.

Claims

1. A surgical barrier membrane fixation auxiliary device for oral bone augmentation, characterized in that, include: The handle (1) includes two grips (11) for easy holding; The curved clamping end (2) includes two arc-shaped cranks (21), and the rear ends of the two cranks (21) are connected to the front ends of the two grips (11) respectively through the connecting pivot (3), and the engagement and disengagement of the two cranks (21) are controlled by the tightness and looseness of the two grips (11). The clamping head (4) is detachably mounted on one side of the front ends of the two cranks (21) that are close to each other, for clamping the barrier membrane (5) in the retracted state.

2. The oral bone augmentation surgery barrier membrane fixation auxiliary device according to claim 1, characterized in that, The crank (21) is a thin, flat rod, and the clamp head (4) is a horizontal plate-like structure that is perpendicular to the front end of the thin, flat rod and arranged laterally.

3. The oral bone augmentation surgery barrier membrane fixation auxiliary device according to claim 2, characterized in that, The clamp head (4) has transversely arranged U-shaped grooves (41) at both ends, and the width of the U-shaped grooves (41) is not less than the diameter of the nail head of the membrane nail (6).

4. The oral bone augmentation surgery barrier membrane fixation auxiliary device according to claim 2, characterized in that, The lateral length of the clamp head (4) is not greater than the width of the barrier membrane (5).

5. The oral bone augmentation surgery barrier membrane fixation auxiliary device according to claim 1, characterized in that, The front and rear ends of the crank (21) extend in perpendicular directions to each other.

6. The oral bone augmentation surgery barrier membrane fixation auxiliary device according to claim 1, characterized in that, The two clamp heads (4) are respectively parallel to or at a certain angle to the plane where the two corresponding cranks (21) are located and are inclined outward.

7. The oral bone augmentation surgery barrier membrane fixation auxiliary device according to claim 1, characterized in that, The clamp head (4) is provided with a slot in the middle for engaging with the front end of the crank (21), and the clamp head (4) and the front end of the crank (21) are fixedly connected by bolts (43).

8. The oral bone augmentation surgery barrier membrane fixation auxiliary device according to claim 1, characterized in that, The contact surface between the clamp head (4) and the barrier film (5) is provided with several anti-slip stripes.

9. The oral bone augmentation surgery barrier membrane fixation auxiliary device according to claim 1, characterized in that, The two grips (11) are respectively provided with a finger ring (12) and a finger handle (13) on the side away from each other, and the grips (11), finger ring (12) and finger handle (13) are all covered with anti-slip rubber pads.

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