A film nail set with depth and texture enhancing structure

Abstract

The utility model discloses a film nail suit with depth limiting and hand feeling reinforcing structure, including film nail and depth limiting stop ring, the film nail includes nail cap, and the bottom fixedly connected with the stem portion of nail cap has the stem portion bottom connection to have the screw portion, the stem portion forms the annular prefabricated recess that cooperates with depth limiting stop ring, and the prefabricated recess distance nail cap bottom 1.5mm 2.5mm, the outer diameter of depth limiting stop ring is greater than the diameter of nail cap, and the thickness of depth limiting stop ring is not greater than the width of prefabricated recess. The utility model fundamentally avoids the risk of damaging important anatomical structure because of implanting too deep, especially friendly to novice doctors, guarantees that film nail has enough exposure height to effectively fix barrier film, prevents the insufficient retention force caused by implanting too shallow, changes the vague bone hand feeling into the clear mechanical stop feeling, and the operation feedback is direct, reduces the dependence on personal experience.

Description

Technical Field

[0001] This utility model relates to the field of dental instruments, and in particular to a membrane staple set with a depth limiting and tactile enhancement structure. Background Technology

[0002] Membrane staples are instruments used in oral implant surgery to fix the barrier membrane, primarily for maintaining the stability of the bone graft space in bone augmentation techniques. Existing membrane staples are simply screws, such as the screw structure in the screw-in periosteal staple and locator disclosed in utility model patent CN 221949979 U. During implantation, surgeons lack objective depth stopping and clear tactile feedback; the implantation depth relies entirely on the surgeon's personal experience and feel, posing a high risk, especially in cases of poor bone quality or poor field of vision, where depth control becomes a significant challenge. Furthermore, after implantation, the staple cap usually needs to protrude a certain distance above the bone surface to facilitate barrier membrane fixation, and it is difficult for surgeons to determine the appropriate height based solely on their senses.

[0003] Currently, the market lacks a simple solution that can effectively limit implantation depth and provide clear tactile feedback. Utility Model Content

[0004] The purpose of this invention is to provide a membrane staple kit with a depth-limiting and feel-enhancing structure that can effectively limit the implantation depth.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A membrane pin set with depth limiting and enhanced tactile feedback structure includes membrane pins and a depth limiting stop ring. The membrane pin includes a pin head, a rod fixedly connected to the bottom of the pin head, and a threaded portion connected to the bottom of the rod. The rod has an annular pre-made groove that mates with the depth limiting stop ring. The pre-made groove is 1.5mm-2.5mm away from the bottom of the pin head. The outer diameter of the depth limiting stop ring is larger than the diameter of the pin head, and the thickness of the depth limiting stop ring is not greater than the width of the pre-made groove.

[0006] A further improvement is that the depth-limiting stop ring is C-type or O-type.

[0007] As a further improvement, the depth-limiting stop ring is C-shaped.

[0008] In a further improvement, the width of the prefabricated groove is 0.2mm - 0.3mm, and the depth is 0.05mm - 0.1mm.

[0009] In a further improvement, the depth-limiting stop ring is made of titanium alloy wire or a bioabsorbable polymer material.

[0010] In a further improvement, the bioabsorbable polymeric material is polylactic acid (PLLA) or polylactic acid-glycolic acid copolymer (PLGA).

[0011] Further improvements include a smooth rod surface with a diameter of 1.0mm-1.2mm; an outer diameter of 2.0mm-3.0mm for the depth-limiting stop ring; a nail head diameter of 1.8mm-2.2mm; and a depth-limiting stop ring thickness less than the width of the pre-made groove.

[0012] In a further improvement, the pre-made groove is 2mm away from the bottom of the nail head.

[0013] Further improvements include that the top and bottom of the prefabricated groove are both flat; and the cross-section of the outer end of the depth-limiting stop ring is a smooth arc.

[0014] A further improvement is that the top of the nail head has a slot in the shape of a straight line, a cross, or an internal hexagon.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. Significantly improves safety: It fundamentally avoids the risk of damaging important anatomical structures due to implantation that is too deep, making it especially friendly to novice doctors.

[0016] 2. Ensure surgical results: Ensure that the membrane staples have sufficient exposure height to effectively fix the barrier membrane and prevent insufficient retention due to shallow implantation.

[0017] 3. Provides a clear feel: Transforms the vague bone feel into a clear mechanical stop feel, providing direct operational feedback and reducing reliance on personal experience.

[0018] 4. Compatibility and flexibility: The "membrane staple + depth limiting ring" kit is highly flexible. The final implantation depth can be fine-tuned by using the same membrane staple with different thickness stop rings. It does not affect the usage habits of existing membrane staple implantation tools (screwdrivers, staple holders, etc.).

[0019] 5. Dual material options: The absorbable material option avoids the potential interference that may be caused by the long-term retention of non-absorbable materials, making it more innovative. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the structure of the membrane staple.

[0022] Figure 3 This is a top view of the structure of the depth-limiting stop ring.

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the depth-limiting stop ring.

[0024] Among them: membrane nail 1, nail head 101, rod part 102, threaded part 103, prefabricated groove 104, slot 105, depth limiting stop ring 2. Detailed Implementation

[0025] Example 1 like Figure 1-4 As shown, this utility model provides a membrane staple set with depth limiting and enhanced feel structure, including the following structure: 1. Membrane nail: Made of medical-grade titanium alloy, its structure consists of a nail head, a rod, and a threaded part.

[0026] The nail head has a Phillips or hexagonal notch at the top for use with a screwdriver bit.

[0027] The diameter of the rod is 1.0mm-1.2mm, and the surface is smooth. It has a pre-set annular groove. The width of this groove is 0.2mm-0.3mm, and the depth is 0.05mm-0.1mm. The position of the groove can be flexibly set according to the total length of the membrane staple. For example, for a membrane staple with a total length of 6mm, the groove can be set 2mm from the lower end face of the staple head, thus allowing for an implantation depth of 2mm.

[0028] 2. Depth-limiting stop ring: This is an independent C-shaped ring (i.e., open ring) or O-shaped ring (closed ring). Preferably, a C-shaped ring is made of titanium alloy wire bent and polished, which has a certain degree of elastic deformation capability. The inner diameter of the stop ring is slightly smaller than the diameter of the suture rod in its natural state, allowing it to elastically engage with the pre-set groove and generate sufficient friction to maintain a fixed position during operation, preventing displacement due to gravity or slight vibration. The outer diameter is 2.0mm - 3.0mm, a size much larger than the diameter of the suture head (typically 1.8mm - 2.2mm), ensuring it effectively abuts against the bone surface to achieve the depth-limiting function.

[0029] 3. Assembly and Use: Preoperatively, the surgeon selects a membrane staple of appropriate size and a depth-limiting stop ring of suitable thickness based on the bone thickness measured by CBCT. The depth-limiting stop ring is radially opened by hand or with auxiliary forceps, fitted onto the stem of the membrane staple, and slid into the pre-set groove. The ring, relying on its own elastic recovery force, locks into the groove, producing a slight "click" sensation or sound, indicating proper assembly. The assembled membrane staple is held in place with a staple holder and positioned on the prepared bone surface for implantation. When the membrane staple is implanted until the lower surface of the depth-limiting stop ring is in complete contact with the bone surface, the screwdriver will encounter a very clear and firm mechanical resistance. This signal indicates to the surgeon that the membrane staple has reached the predetermined precise depth and should be stopped immediately. At this point, the threaded portion has acquired sufficient retention force, and the staple head protrudes above the bone surface, which can be used to fix the barrier membrane. The stop ring is pressed tightly between the staple head and the bone surface. Using a titanium ring allows for permanent retention. If an absorbable ring is used, it will degrade and be absorbed during bone healing after fulfilling its purpose. Permanent retention is possible.

[0030] Absorbable depth-limiting stop ring: Made of bioabsorbable polymer material, preferably polylactic acid (PLLA) or polylactic acid-glycolic acid copolymer (PLGA). The degradation period can be controlled by adjusting the molecular weight and crystallinity of the material, so that after fulfilling its intraoperative depth-limiting function, it is gradually absorbed and metabolized by the body during the bone healing period (usually 4-6 months).

[0031] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A membrane staple set with depth limiting and enhanced feel structure, characterized in that, The device includes a diaphragm nail (1) and a depth-limiting stop ring (2); the diaphragm nail (1) includes a nail head (101), a rod (102) is fixedly connected to the bottom of the nail head (101), and a threaded part (103) is connected to the bottom of the rod (102); the rod (102) forms an annular pre-made groove (104) that mates with the depth-limiting stop ring (2); the pre-made groove (104) is 1.5mm-2.5mm away from the bottom of the nail head (101); the outer diameter of the depth-limiting stop ring (2) is greater than the diameter of the nail head (101), and the thickness of the depth-limiting stop ring (2) is not greater than the width of the pre-made groove (104).

2. The membrane staple set with depth limiting and enhanced feel structure as described in claim 1, characterized in that, The depth-limiting stop ring (2) is of type C or type O.

3. The membrane staple set with depth limiting and enhanced feel structure as described in claim 2, characterized in that, The depth-limiting stop ring (2) is of type C.

4. A membrane staple set with depth limiting and enhanced feel structure according to claim 1, characterized in that, The prefabricated groove (104) has a width of 0.2mm - 0.3mm and a depth of 0.05mm - 0.1mm.

5. A membrane staple set with depth limiting and enhanced feel structure according to claim 1, characterized in that, The depth-limiting stop ring (2) is made of titanium alloy wire or bio-absorbable polymer material.

6. A membrane staple set with depth limiting and enhanced feel structure according to claim 5, characterized in that, The bioabsorbable polymer material is polylactic acid (PLLA) or polylactic acid-glycolic acid copolymer (PLGA).

7. A membrane staple set with depth limiting and enhanced feel structure according to claim 1, characterized in that, The rod (102) has a smooth surface and a diameter of 1.0 mm to 1.2 mm; the outer diameter of the depth limiting stop ring (2) is 2.0 mm to 3.0 mm, and the diameter of the nail head (101) is 1.8 mm to 2.2 mm; the thickness of the depth limiting stop ring (2) is less than the width of the prefabricated groove (104).

8. A membrane staple set with depth limiting and enhanced feel structure according to claim 1, characterized in that, The prefabricated groove (104) is 2 mm away from the bottom of the nail head (101).

9. A membrane staple set with depth limiting and enhanced feel structure according to claim 1, characterized in that, The top and bottom of the prefabricated groove (104) are both flat; the outer end of the depth-limiting stop ring (2) has a smooth arc shape.

10. A membrane staple set with depth limiting and enhanced feel structure according to claim 1, characterized in that, The top of the nail head (101) has a slot (105) in the shape of a straight line, a cross, or an internal hexagon.

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