A dental shielding film shaping device

Abstract

The application relates to a dental shielding film shaping device which comprises a bottom plate, a lower mold mounting frame, an upper mold mounting frame, a guide rod and a pressing rod; the lower mold mounting frame is mounted at the top end of the bottom plate, and the top end of the lower mold mounting frame is provided with a lower mold body; the guide rod is mounted at the top end of the bottom plate, the upper mold mounting frame is limitingly and slidingly mounted on the guide rod, and the bottom end of the upper mold mounting frame is provided with an upper mold body; the top end of the lower mold body and the bottom end of the upper mold body are respectively provided with a corresponding shaping protrusion and a shaping cavity; the shape of the shaping protrusion and the shape of the shaping cavity are matched with the shape of the alveolar bone of a patient; one end of the pressing rod is hinged to one end of the bottom plate, and the pressing rod is arranged to press the upper mold body on the lower mold body, so that the shielding film body is shaped through the shaping protrusion and the shaping cavity. The application can reduce the labor cost, improve the bone augmentation operation efficiency, and make the shielding film body accurately fit the shape of the alveolar bone of the patient.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a dental shielding film shaping device. Background Art

[0002] Before dental implants are placed, the patient must have sufficient bone mass to support the implant. However, clinical testing shows that patients often have insufficient bone mass, necessitating bone augmentation surgery to increase the patient's bone mass. During bone augmentation surgery, a shielding membrane is required. This membrane can isolate soft tissue and maintain space for the bone graft material during the augmentation procedure. It can also guide the subsequent regeneration of the patient's bone tissue (i.e., guided bone regeneration, also known as GBR technology). The shielding membrane used in bone augmentation surgery is typically made of titanium alloy or pure titanium (i.e., titanium mesh or titanium metal barrier membrane).

[0003] Currently, in existing technologies, bone augmentation surgery for patients with insufficient bone mass first requires measuring the shape of the patient's alveolar bone. The shielding membrane is then manually trimmed and shaped based on the measured data to fit the patient's alveolar bone shape. However, this method of trimming and shaping the shielding membrane has at least the following drawbacks:

[0004] 1. Manual shaping of the shielding membrane not only consumes a lot of time and greatly increases labor costs, but also reduces the efficiency of bone augmentation surgery.

[0005] 2. Errors are very likely to occur during the artificial shaping of the shielding membrane, which will lead to inaccurate fitting of the shielding membrane to the patient's alveolar bone, which may cause postoperative complications in the patient and cannot guarantee the patient's health.

[0006] Therefore, how to shape the shielding membrane while reducing labor costs and improving efficiency, while avoiding errors in the process of shaping the shielding membrane, so that the shielding membrane can accurately fit the shape of the patient's alveolar bone to ensure the patient's health, has become a problem that needs to be solved urgently. Summary of the Invention

[0007] The purpose of the present invention is to provide a dental shielding film shaping device to solve the problems existing in the above-mentioned prior art.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] The present invention provides a dental shielding film shaping device, comprising a base plate, a lower mold mounting frame, an upper mold mounting frame, a guide rod and a pressure rod, wherein:

[0010] The lower mold mounting frame is mounted on the top of the bottom plate, and the lower mold body is mounted on the top of the lower mold mounting frame;

[0011] The guide rod is mounted on the top of the bottom plate, the upper mold mounting frame is limitedly slidably mounted on the guide rod, and the upper mold body is mounted on the bottom end of the upper mold mounting frame;

[0012] The top end of the lower mold body and the bottom end of the upper mold body are respectively provided with a shaping protrusion and a shaping cavity, wherein the shaping protrusion is adapted to and corresponding to the shaping cavity; the shape of the shaping protrusion and the shape of the shaping cavity both match the shape of the patient's alveolar bone, and the curvature of the shaping protrusion and the curvature of the shaping cavity are both greater than the curvature of the patient's alveolar bone;

[0013] One end of the pressure rod is hinged to one end of the base plate, and the pressure rod is configured to press the upper mold body onto the lower mold body so as to shape the shielding membrane body through the shaping protrusion and the shaping cavity.

[0014] According to one embodiment of the present invention, a lower mold mounting groove adapted to the lower mold body is formed on the top of the lower mold mounting frame, and the lower mold body is mounted in the lower mold mounting groove and has a clearance fit with the lower mold mounting groove;

[0015] An upper mold mounting groove adapted to the upper mold body is formed at the bottom end of the upper mold mounting frame. The upper mold body is mounted in the upper mold mounting groove and is interference-fitted with the upper mold mounting groove.

[0016] According to one embodiment of the present invention, a guide rod sliding hole adapted to the guide rod is formed on the upper mold mounting frame, the guide rod is sleeved in the guide rod sliding hole and slidably engaged with the inner wall of the guide rod sliding hole, and the upper mold mounting frame is limitedly slidably engaged with the guide rod through the guide rod sliding hole;

[0017] A first spring is sleeved on the guide rod, the bottom end of the first spring abuts against the top end of the bottom plate, and the top end of the first spring abuts against the bottom end of the upper mold mounting bracket.

[0018] According to one embodiment of the present invention, a ball joint is provided on the side wall of the guide rod, and the end of the ball away from the guide rod is configured to be able to slide with the inner wall of the guide rod sliding hole, and the guide rod slides with the inner wall of the guide rod sliding hole through the ball.

[0019] According to one embodiment of the present invention, a bearing mounting rod is installed on the side wall of the upper mold mounting frame, a bearing is installed on the bearing mounting rod, a soft friction layer is installed on the outer ring of the bearing, and the pressure rod abuts against the end of the soft friction layer away from the bearing.

[0020] According to one embodiment of the present invention, the pressure rod is a 匚-shaped structure;

[0021] The bottom plate is also hinged with a pressure-maintaining hook;

[0022] When the shaping protrusion and the shaping cavity shape the shielding membrane body, the pressure-maintaining hook is configured to fix the pressure rod to maintain pressure on the shielding membrane body during shaping.

[0023] According to one embodiment of the present invention, a torsion spring is installed at the hinge between the pressure-maintaining hook and the base plate, and both ends of the torsion spring are connected to the base plate and the pressure-maintaining hook respectively. The torsion spring is configured to enable the pressure-maintaining hook and the base plate to be arranged perpendicular to each other.

[0024] The bending part of the pressure-maintaining hook is an acute-angle structure.

[0025] According to one embodiment of the present invention, a fixing rod is slidably mounted on the upper mold mounting frame in an upper limit position, an ejection through-hole is formed on the upper mold mounting frame, the fixing rod is located in the ejection through-hole, and an inner side wall of the ejection through-hole is clearance-matched with an outer side wall of the fixing rod;

[0026] A fixed internal threaded hole is formed at the top of the upper mold body, and the fixed internal threaded hole is arranged corresponding to the fixed rod. An external thread is formed at the bottom of the fixed rod, and the external thread on the fixed rod is arranged to be threadedly matched with the fixed internal threaded hole.

[0027] A pressing block is installed on the top of the fixing rod, and a second spring is sleeved on the fixing rod. The bottom end of the second spring is fixedly connected to the upper mold mounting frame, and the top end of the second spring abuts against the bottom end of the pressing block.

[0028] According to one embodiment of the present invention, when the curvature of the alveolar bone of the patient is within 1 mm -1 When the curvature of the shaping protrusion and the curvature of the shaping cavity are greater than the curvature of the patient's alveolar bone by 1 mm, -1 -0.5mm -1 ;

[0029] When the patient's alveolar bone curvature is 1mm -1 When the curvature of the shaping protrusion and the curvature of the shaping cavity are greater than the curvature of the patient's alveolar bone by 3 mm, -1 -1mm -1 .

[0030] According to one embodiment of the present invention, at least two buckles are provided on the upper mold body, and the two buckles are arranged opposite to each other;

[0031] At least two card slots are provided on the side wall of the lower mold body, and the two card slots are arranged in a one-to-one correspondence with the two buckles, and the card slots are arranged to be detachably connected to the buckles.

[0032] The present invention has at least the following technical effects:

[0033] 1. The present invention can quickly shape the shielding membrane body through the arrangement of the base plate, the lower mold mounting frame, the upper mold mounting frame, the guide rod and the pressure rod, the upper mold body and the lower mold body, without the need for manual shaping of the shielding membrane body, thereby greatly reducing labor costs and improving the efficiency of bone augmentation surgery.

[0034] 2. The present invention can also accurately shape the shielding membrane body through the arrangement of the base plate, the lower mold mounting frame, the upper mold mounting frame, the guide rod and the pressure rod, the upper mold body and the lower mold body, so that the shielding membrane body can be accurately fitted to the patient's alveolar bone, without causing postoperative complications in the patient, ensuring the patient's health, and also ensuring the smooth progress of the bone augmentation surgery.

[0035] 3. The present invention sets the curvature of the shaping protrusion and the curvature of the shaping cavity to be greater than the curvature of the patient's alveolar bone, thereby offsetting the residual elastic deformation of the shielding membrane body, thereby making the shielding membrane body fit the patient's alveolar bone more accurately, without causing postoperative complications in the patient, ensuring the patient's health, and also ensuring the smooth progress of the bone augmentation surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0038] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0039] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;

[0040] Figure 4 for Figure 1 A partial enlarged view of point C in the middle;

[0041] Figure 5 for Figure 1Schematic diagram of the overall structure from another angle;

[0042] Figure 6 for Figure 5 Schematic diagram of the overall structure from another angle;

[0043] Figure 7 for Figure 1 Schematic diagram of the overall structure after removing the upper mold body and the lower mold body;

[0044] Figure 8 Schematic diagram of the overall structure of the upper mold mounting frame of the present invention;

[0045] Figure 9 for Figure 8 A cross-sectional view of the upper mold body is installed;

[0046] Figure 10 for Figure 9 A partial enlarged view of point D in the middle;

[0047] Figure 11 for Figure 8 Schematic diagram of the overall structure from another angle;

[0048] Figure 12 for Figure 11 The overall structural diagram of the upper mold body is installed in the figure;

[0049] Figure 13 Schematic diagram of the overall structure of the lower mold body in the present invention;

[0050] Figure 14 Schematic diagram of the overall structure of the upper mold body in the present invention;

[0051] Figure 15 It is a schematic diagram of the overall structure of the fixing rod and the pressing block in the present invention.

[0052] Description of reference numerals:

[0053] 1. Base plate; 2. Lower mold mounting frame; 3. Lower mold mounting groove; 4. Guide rod; 5. First spring; 6. Ball; 7. Upper mold mounting frame; 8. Guide rod sliding hole; 9. Bearing mounting rod; 10. Bearing; 11. Soft friction layer; 12. Fixed rod; 13. Second spring; 14. Circular limit block; 15. Ejection hole; 16. Pressure rod; 17. Pressure holding hook; 18. Torsion spring; 19. Upper mold mounting groove; 20. Lower mold body; 21. Card slot; 22. Upper mold body; 23. Buckle; 24. Fixed internal threaded hole; 25. Shielding membrane body; 26. Press block. DETAILED DESCRIPTION

[0054] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purposes, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are used to illustrate the principles of the present invention, and are not configured to limit the present invention. In addition, the structural components in the drawings are not necessarily drawn to scale. For example, the dimensions of some structural components or areas in the drawings may be enlarged for other structural components or areas to facilitate understanding of the embodiments of the present invention.

[0055] The directional words appearing in the following description refer to the directions shown in the drawings and do not limit the specific structure of the embodiments of the present invention. In the description of the present invention, it should be noted that, unless otherwise specified, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0056] In addition, the terms "include", "comprising", "having" or any other variations thereof are intended to cover non-exclusive inclusion, so that a structure or component comprising a series of elements includes not only those elements, but also other mechanical elements not explicitly listed or inherent in the structure or component. In the absence of more limitations, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the article or device comprising the elements.

[0057] Spatially relative terms such as "below," "beneath," "under," "low," "above," "on," "high," and the like are used to facilitate description to explain the positioning of one element relative to a second element, indicating that these terms are intended to encompass different orientations of the device in addition to those shown in the figures. Additionally, for example, "one element is above / below another element" may indicate that the two elements are in direct contact, or may indicate that there are other elements between the two elements. Furthermore, terms such as "first," "second," and the like are also used to describe various elements, regions, portions, and the like, and do not specifically refer to an order or sequence, and should not be considered limiting. Similar terms are used throughout the description to indicate similar elements.

[0058] For those skilled in the art, the present invention can be implemented without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present invention by showing examples of the present invention.

[0059] In the following embodiments, there may be descriptions such as "this device". Those skilled in the art should understand that "this device" refers to a dental shielding film shaping device provided by the present invention.

[0060] Reference Figures 1-15 The present invention provides a dental shielding film shaping device. Figure 1 、 Figure 5 、 Figure 6 and Figure 7 As shown, the device at least includes a base plate 1, a lower mold mounting frame 2, an upper mold mounting frame 7, a guide rod 4 and a pressure rod 16, wherein:

[0061] like Figure 1 As shown, the lower mold mounting frame 2 is mounted on the top of the base plate 1 , and the lower mold body 20 is mounted on the top of the lower mold mounting frame 2 .

[0062] In this embodiment, the base plate 1 can be a flat rectangular parallelepiped structure, and the lower mold mounting frame 2 can also be a flat rectangular parallelepiped structure. The cross-sectional area of ​​the lower mold mounting frame 2 can be smaller than the cross-sectional area of ​​the base plate 1. The lower mold mounting frame 2 can be connected to the base plate 1 by a bolt connection method known in the art (not shown in the figure), which is not particularly limited here.

[0063] Specifically, if Figure 7 As shown, a lower mold mounting groove 3 adapted to the lower mold body 20 is provided at the top of the lower mold mounting frame 2 , and the lower mold body 20 is installed in the lower mold mounting groove 3 and has a clearance fit with the lower mold mounting groove 3 .

[0064] In this embodiment, if Figure 13 As shown, the lower mold body 20 can be or roughly be a rectangular parallelepiped structure, such as Figure 7 As shown, the lower mold mounting groove 3 may also be or be approximately a rectangular parallelepiped structure (compatible with the lower mold body 20), thereby allowing the outer wall of the lower mold body 20 to have a clearance fit with the inner wall of the lower mold mounting groove 3. The clearance of the clearance fit may be 0.01 mm to 0.05 mm, which is not particularly limited herein.

[0065] like Figure 1 As shown, the guide rod 4 is mounted on the top of the base plate 1, the upper mold mounting frame 7 is limitedly slidably mounted on the guide rod 4, and the upper mold body 22 is mounted on the bottom end of the upper mold mounting frame 7. Among them, the guide rod 4 can be a cylindrical structure.

[0066] In this embodiment, the guide rod 4 can be connected to the base plate 1 by means of bolts (not shown in the figures).

[0067] In this embodiment, if Figure 1 、 Figure 8、 Figure 11 and Figure 12 As shown, the upper mold mounting frame 7 can be a rectangular parallelepiped structure.

[0068] In this embodiment, the guide rod 4 can be arranged perpendicular to the base plate 1, and the number of guide rods 4 can be two, which are arranged in sequence at two diagonally symmetrical angles of the upper mold mounting frame 7, thereby further increasing the stability of the upper mold mounting frame 7 in the upper limit sliding connection on the guide rod 4.

[0069] Specifically, if Figure 9 、 Figure 11 and Figure 12 As shown, an upper mold mounting groove 19 adapted to the upper mold body 22 is provided at the bottom end of the upper mold mounting frame 7 , and the upper mold body 22 is installed in the upper mold mounting groove 19 and has an interference fit with the upper mold mounting groove 19 .

[0070] In this embodiment, if Figure 12 and Figure 14 As shown, the upper mold body 22 can be or roughly be a rectangular parallelepiped structure, such as Figure 11 As shown, the upper mold mounting groove 19 may also be or be substantially a rectangular parallelepiped structure (compatible with the upper mold body 22), thereby enabling an interference fit between the outer wall of the upper mold body 22 and the inner wall of the upper mold mounting groove 19. The interference fit is preferably a micro-interference fit, i.e., the interference can be 0.01 mm to 0.03 mm, which is not particularly limited herein.

[0071] In this embodiment, the groove depths of the lower mold installation groove 3 and the upper mold installation groove 19 may both be about 2 mm.

[0072] like Figure 12 and Figure 13 As shown, the top of the lower mold body 20 and the bottom of the upper mold body 22 are respectively provided with a shaping protrusion and a shaping cavity. Figure 5 As shown, the shaping protrusion and the shaping cavity are adapted and correspondingly arranged. The shapes of the shaping protrusion and the shaping cavity both match the shape of the patient's alveolar bone, and the curvature of the shaping protrusion and the curvature of the shaping cavity are both greater than the curvature of the patient's alveolar bone.

[0073] Specifically, the lower mold body 20 and the shaping protrusions on its top, as well as the upper mold body 22 and the shaping cavity on its bottom, can all be modeled using 3D printing technology known in the art. For example, during a bone augmentation procedure, information such as the shape and curvature of the patient's alveolar bone can be collected using CBCT technology known in the art. The CBCT data can then be imported into a 3D printer to produce the lower mold body 20, upper mold body 22, and the shaping protrusions and shaping cavity that match the patient's alveolar bone shape.

[0074] More specifically, when the CBCT technology was used to collect the data of the patient's alveolar bone curvature, it was found that the patient's alveolar bone curvature was 1mm -1 When the curvature of the shaping protrusion and the shaping cavity modeled by 3D printing technology is greater than the curvature of the patient's alveolar bone by 1mm -1 -0.5mm -1 On the contrary, when the CBCT technology was used to collect the data of the patient's alveolar bone curvature, it was found that the patient's alveolar bone curvature was within 1mm. -1 When the curvature of the shaping protrusion and the shaping cavity modeled by 3D printing technology is greater than the curvature of the patient's alveolar bone by 3mm -1 -1mm -1 In addition, when the patient's alveolar bone curvature is exactly 1mm -1 At this time, the curvature of the shaping protrusion and the shaping cavity modeled by 3D printing technology is greater than the curvature of the patient's alveolar bone by 1mm. -1 .

[0075] During and after the shaping process, the shielding membrane body 25 undergoes plastic strain and deforms to the same shape as the shaping protrusion and the shaping cavity. However, some residual elastic deformation remains. By ensuring that the curvature of the shaping protrusion and the shaping cavity are both greater than the curvature of the patient's alveolar bone, this residual elastic deformation of the shielding membrane body 25 is offset, allowing the shielding membrane body 25 to more precisely conform to the patient's alveolar bone. This prevents postoperative complications, protects the patient's health, and ensures the smooth progress of the bone augmentation procedure.

[0076] In the above content, if the curvature of the shaping protrusion and the curvature of the shaping cavity are too large, crease-like lines may be generated, and if the curvature of the shaping protrusion and the curvature of the shaping cavity are too small, it may not be enough to offset the residual elastic deformation of the shielding membrane body 25. Therefore, when the curvature of the patient's alveolar bone is 1mm -1 Less than (ie less than 1mm -1 ), that is, the patient's alveolar bone radius will be greater than 1mm -1 After calculation, the curvature of the shaping protrusion and the curvature of the shaping cavity are set to be greater than the curvature of the patient's alveolar bone to 1mm. -1 -0.5mm -1 This range can not only avoid the generation of crease-like lines, but also offset the residual elastic deformation of the shielding membrane body 25. On the contrary, when the patient's alveolar bone curvature is 1mm -1 More than (ie more than 1mm -1 ), that is, the patient's alveolar bone radius will be less than 1mm -1After calculation, the curvature of the shaping protrusion and the curvature of the shaping cavity are set to be greater than the curvature of the patient's alveolar bone to 3mm. -1 -1mm -1 This range can not only avoid the generation of crease-like lines, but also offset the residual elastic deformation of the shielding membrane body 25.

[0077] like Figure 1 、 Figure 5 and Figure 6 As shown, one end of the pressure rod 16 is hinged to one end of the base plate 1, and the pressure rod 16 is configured to press the upper mold body 22 on the lower mold body 20 to shape the shielding membrane body 25 through the shaping protrusions and the shaping cavity.

[0078] In this embodiment, if Figure 6 As shown, the compression rod 16 can be a 匚-shaped structure or a substantially 匚-shaped structure, preferably a 匚-shaped structure. Therefore, the compression rod 16 can be considered as having a central web and two flange rods on either side. The free ends of the two flange rods (i.e., the distal ends of the flange rods) of the compression rod 16 are both hinged to the base plate 1.

[0079] Specifically, the top of the bottom plate 1 can be integrally formed with two pressure rod hinge protrusions, and the two pressure rod hinge protrusions are symmetrically arranged on the top of the bottom plate 1. Figure 5 As shown, the compression rod hinge protrusion and the base plate 1 form an L-shaped structure. The two flange rod free ends of the compression rod 16 are hinged on the compression rod hinge protrusion, that is, the compression rod 16 is hinged to the base plate 1 through the compression rod hinge protrusion.

[0080] In this embodiment, the shielding membrane body 25 is the shielding membrane required for patients undergoing bone augmentation surgery. The shielding membrane body 25 can be a shielding membrane made of a plastic material known in the art. For example, the shielding membrane body 25 can be a metal barrier membrane (i.e., a titanium mesh or titanium metal barrier membrane) made of a titanium alloy or pure titanium material known in the art. Alternatively, the shielding membrane body 25 can be a polymer membrane with a metal skeleton having a "M"-shaped structure known in the art, without particular limitation.

[0081] Further, if Figure 1 As shown, a hand-shaped structure (i.e., four grooves for placing fingers) is provided on the central web of the pressure rod 16 of the 匚-shaped structure, thereby making the fingers fit more firmly against the pressure rod 16.

[0082] When the shielding film body 25 needs to be shaped, first place the finished lower mold body 20 and upper mold body 22 into the lower mold mounting groove 3 and the upper mold mounting groove 19 respectively, then place the shielding film body 25 between the shaping protrusion and the shaping cavity, and then press the pressure rod 16 downward (even if Figure 5The pressure rod 16 in the mold rotates clockwise with the hinge between it and the base plate 1 as the center of the circle). At this time, the pressure rod 16 will press the upper mold body 22 on the lower mold body 20, thereby shaping the shielding membrane body 25 using the shaping protrusions and the shaping cavity.

[0083] It should be understood by those skilled in the art that although Figure 12 and Figure 13 What is shown in the figure is that the top end of the lower mold body 20 is provided with a shaping protrusion, and the bottom end of the upper mold body 22 is provided with a shaping cavity. However, the shaping cavity can also be provided at the top end of the lower mold body 20, and the shaping protrusion can be provided at the bottom end of the upper mold body 22, so that the shielding membrane body 25 can be shaped. No details will be given here.

[0084] According to one embodiment of the present invention, Figure 8 、 Figure 9 、 Figure 11 and Figure 12 As shown, the upper mold mounting frame 7 is provided with a guide rod sliding hole 8 adapted to the guide rod 4. Figure 6 As shown, the guide rod 4 is sleeved in the guide rod sliding hole 8 and slides with the inner wall of the guide rod sliding hole 8, and the upper mold mounting frame 7 slides with the guide rod 4 through the guide rod sliding hole 8.

[0085] In this embodiment, since the number of the guide rods 4 is two, the number of the guide rod sliding holes 8 is also two.

[0086] like Figure 1 、 Figure 2 、 Figure 5 and Figure 7 As shown, a first spring 5 is sleeved on the guide rod 4 , the bottom end of the first spring 5 abuts against the top end of the bottom plate 1 , and the top end of the first spring 5 abuts against the bottom end of the upper mold mounting bracket 7 .

[0087] In this embodiment, if Figure 1 As shown, the lower mold mounting frame 2 can also be sleeved on the guide rod 4, thereby further ensuring the stability of the lower mold mounting frame 2 on the base plate 1. Figure 1 As shown, when the lower mold mounting frame 2 is mounted on the guide rod 4, the bottom end of the first spring 5 will abut against the top end of the lower mold mounting frame 2, that is, the bottom end of the first spring 5 will abut against the top end of the base plate 1 through the lower mold mounting frame 2.

[0088] Through the setting of the first spring 5, when the upper mold mounting frame 7 is not pressed, the first spring 5 can make the upper mold mounting frame 7 always at the top of the guide rod 4, and then when the shielding membrane body 25 is placed between the shaping protrusion and the shaping cavity, there is no need to manually lift the upper mold mounting frame 7, which reduces labor costs and improves work efficiency.

[0089] Further, if Figure 2 As shown, a plurality of balls 6 are spherically hinged on the side wall of the guide rod 4. The end of the balls 6 away from the guide rod 4 is configured to slide with the inner wall of the guide rod sliding hole 8. The guide rod 4 slides with the inner wall of the guide rod sliding hole 8 via the balls 6. The end of the balls 6 away from the guide rod 4 does not contact the first spring 5.

[0090] In this embodiment, the plurality of balls 6 can be arranged in several layers on the side wall of the guide rod 4, and the balls 6 in each layer are evenly arranged along the circumference of the guide rod 4. The number of balls 6 in the ball joint on the side wall of the guide rod 4 is not particularly limited, as long as the distance between adjacent layers of balls 6 is much smaller than the thickness of the upper mold mounting frame 7, and the number of balls 6 in each layer is greater than or equal to four.

[0091] By setting the ball 6, the sliding friction between the guide rod sliding hole 8 and the guide rod 4 can be converted into rolling friction, which can greatly reduce the friction between the guide rod sliding hole 8 and the guide rod 4, thereby bringing a labor-saving effect.

[0092] According to one embodiment of the present invention, Figure 1 and Figure 4 As shown, a bearing mounting rod 9 is mounted on the side wall of the upper mold mounting frame 7 .

[0093] In this embodiment, the number of bearing mounting rods 9 can be two, and they are sequentially mounted on two opposite side walls of the upper mold mounting frame 7 by means of bolt connections (not shown in the figure). The two flange rods of the pressure rod 16 of the U-shaped structure are arranged in a one-to-one correspondence with the two bearing mounting rods 9.

[0094] When the upper mold mounting frame 7 is pressed downward, the flange rod of the pressure rod 16 will press the bearing mounting rod 9 downward, thereby pressing the upper mold mounting frame 7 downward.

[0095] Further, if Figure 1 and Figure 4 As shown, the bearing mounting rod 9 may be a cylindrical structure, and a bearing 10 is mounted on the bearing mounting rod 9 .

[0096] In this embodiment, a sleeve (not shown in the figure) can be installed on the side wall of the bearing mounting rod 9, and the end of the sleeve away from the bearing mounting rod 9 is connected to the inner ring of the bearing 10, thereby mounting the bearing 10 on the bearing mounting rod 9.

[0097] The bearing 10 can be provided to convert the sliding friction between the pressure rod 16 and the bearing mounting rod 9 into rolling friction, thereby greatly reducing the friction between the two and achieving a labor-saving effect. At the same time, the wear of the pressure rod 16 and the bearing mounting rod 9 caused by the sliding friction between the two can be avoided, thereby extending the service life of the device.

[0098] Furthermore, if Figure 1 and Figure 4 As shown, the outer ring of the bearing 10 is mounted with a soft friction layer 11. Preferably, the soft friction layer 11 is a circular ring structure having the same width as the bearing 10, and is thus sleeved on the outer ring of the bearing 10. The pressure rod 16 is configured to abut against the end of the soft friction layer 11 away from the bearing 10 to press the upper mold mounting frame 7.

[0099] In this embodiment, the material of the soft friction layer 11 can be silicone rubber material known in the art, etc., and is not particularly limited here.

[0100] The provision of the soft friction layer 11 prevents the pressure rod 16 from directly pressing the outer ring of the bearing 10, thereby preventing deformation of the outer ring surface of the bearing 10 and further extending the service life of the device. Furthermore, the provision of the soft friction layer 11 prevents sliding friction between the pressure rod 16 and the soft friction layer 11, thereby allowing the bearing 10 to continue rotating during the pressing of the upper mold mounting bracket 7, thereby ensuring continuous rolling friction.

[0101] According to one embodiment of the present invention, Figure 1 、 Figure 3 and Figure 6 As shown, a pressure-maintaining hook 17 is hingedly connected to the bottom plate 1. When the shaping protrusion and the shaping cavity are shaping the shielding membrane body 25, that is, when the pressure rod 16 is pressed down into place, the pressure-maintaining hook 17 is configured to fix (i.e., hook) the pressure rod 16 to maintain pressure on the shielding membrane body 25 during shaping.

[0102] During the shaping process, to minimize residual elastic deformation of the shielding membrane body 25, the shielding membrane body 25 must be maintained under pressure (even if the shaping protrusions and the shaping cavity continue to compress the shielding membrane body 25). This holding time is preferably 1-2 minutes. The pressure-maintaining hook 17 hooks onto the depressed pressure rod 16, maintaining pressure on the shielding membrane body 25. This allows the shielding membrane to more closely conform to the patient's alveolar bone, ensuring a smooth bone augmentation procedure.

[0103] Further, if Figure 3As shown, a torsion spring 18 is installed at the hinge of the pressure-maintaining hook 17 and the bottom plate 1 (i.e., on the hinge), and the two ends of the torsion spring 18 are connected to the bottom plate 1 and the pressure-maintaining hook 17 respectively. The torsion spring 18 is configured to enable the pressure-maintaining hook 17 and the bottom plate 1 to be arranged perpendicular to each other. That is, when there is no elastic potential energy inside the torsion spring 18, the pressure-maintaining hook 17 and the bottom plate 1 will be arranged perpendicular to each other. Figure 6 The bending part at the top end of the middle pressure-maintaining hook 17 (that is, the hook part of the pressure-maintaining hook 17) is an acute-angle structure, that is, the pressure-maintaining hook 17 is roughly an L-shaped structure with an acute-angle bending part.

[0104] like Figure 6 As shown, since the bending part of the pressure-maintaining hook 17 is an acute-angle structure, that is, the top of the pressure-maintaining hook 17 is an inclined structure, when the pressure rod 16 is pressed downward until it contacts the top of the pressure-maintaining hook 17, the pressure-maintaining hook 17 will automatically rotate due to the pressure of the pressure rod 16 (that is, Figure 6 The middle pressure-maintaining hook 17 rotates clockwise at its hinge. When the pressure rod 16 is pressed down into place, the pressure-maintaining hook 17 automatically returns to its initial position through the elastic potential energy stored in the torsion spring 18, i.e., it automatically hooks onto the pressed-down pressure rod 16. This eliminates the need for manual operation to hook the pressure-maintaining hook 17 onto the pressed-down pressure rod 16, greatly reducing labor costs and improving work efficiency.

[0105] In addition, if Figure 3 As shown, a pressure retaining hook limit block can also be provided at the hinged joint between the pressure retaining hook 17 and the bottom plate 1. Figure 6 When the pressure-maintaining hook 17 and the bottom plate 1 are in the default state, that is, the pressure-maintaining hook 17 and the bottom plate 1 are perpendicular to each other, the pressure-maintaining hook limit block can make Figure 6 The pressure-maintaining hook 17 can only rotate clockwise around its hinge, but cannot rotate counterclockwise around its hinge.

[0106] It should be understood by those skilled in the art that the bending part of the pressure-maintaining hook 17 can undergo slight elastic deformation, thereby enabling the pressure-maintaining hook 17 to smoothly hook the pressure rod 16, and also enabling the pressure rod 16 to smoothly detach from the mutual connection with the pressure-maintaining hook 17, which will not be elaborated here.

[0107] According to one embodiment of the present invention, Figures 8-11 As shown, a fixing rod 12 is slidably installed on the upper mold mounting frame 7 to limit the position. An ejection hole 15 is opened on the upper mold mounting frame 7. The fixing rod 12 is located in the ejection hole 15, and the inner wall of the ejection hole 15 is gap-matched with the outer wall of the fixing rod 12.

[0108] In this embodiment, if Figure 9 and Figure 10As shown, the ejection through hole 15 can be opened on the upper mold mounting frame 7 along a direction perpendicular to the upper mold mounting frame 7, and the fixing rod 12 can also be connected to the upper mold mounting frame 7 in a limited sliding manner along a direction perpendicular to the upper mold mounting frame 7.

[0109] In this embodiment, the clearance between the inner side wall of the ejection through hole 15 and the outer side wall of the fixing rod 12 may be 0.5 mm-1 mm.

[0110] In this embodiment, if Figure 8 As shown, the number of the fixing rods 12 may be two.

[0111] like Figure 10 and Figure 14 As shown, a fixed internal thread hole 24 is provided at the top of the upper mold body 22, and the fixed internal thread hole 24 is correspondingly arranged with the fixed rod 12. Figure 10 and Figure 15 As shown, an external thread is provided at the bottom of the fixing rod 12 , and the external thread on the fixing rod 12 is configured to be threadably matched with the fixing internal thread hole 24 .

[0112] In this embodiment, if Figure 14 As shown, since there are two fixing rods 12 and the fixing internal threaded holes 24 are provided corresponding to the fixing rods 12 , there are also two fixing internal threaded holes 24 .

[0113] like Figures 8-11 and Figure 15 As shown, a pressing block 26 is installed at the top of the fixing rod 12, and a second spring 13 is sleeved on the fixing rod 12. The bottom end of the second spring 13 is fixedly connected to the upper mold mounting frame 7, and the top end of the second spring 13 abuts against the bottom end of the pressing block 26.

[0114] In this embodiment, the pressing block 26 may be connected to the top end of the fixing rod 12 by means of bolts (not shown in the figures).

[0115] Specifically, if Figure 10 As shown, two annular stoppers 14 are mounted on the top of the upper mold mounting frame 7. The central through-holes of the two annular stoppers 14 are connected to the two ejection through-holes 15, respectively, and are arranged in a one-to-one correspondence. The fixing rod 12 is located within the central through-hole of the annular stopper 14 and slidably engages with the inner wall of the central through-hole of the annular stopper 14. That is, the fixing rod 12 is in a limited sliding connection with the upper mold mounting frame 7 through the annular stopper 14. At this time, the bottom end of the second spring 13 is fixedly connected to the top of the annular stopper 14, rather than being directly fixedly connected to the upper mold mounting frame 7. That is, the bottom end of the second spring 13 is fixedly connected to the upper mold mounting frame 7 through the annular stopper 14.

[0116] In this embodiment, the annular limiting block 14 can be connected to the top end of the upper mold mounting frame 7 by means of bolt connection (not shown in the figure).

[0117] In this embodiment, in the default state, that is, when no external force is applied to the pressing block 26, the external thread at the bottom of the fixing rod 12 is entirely located within the ejection hole 15. In other words, in the default state, the bottom end of the fixing rod 12 is flush with the bottom end of the ejection hole 15, or the bottom end of the fixing rod 12 is higher than the bottom end of the ejection hole 15, thereby not hindering the installation of the upper mold body 22 within the upper mold mounting groove 19. Since the inner sidewall of the ejection hole 15 and the outer sidewall of the fixing rod 12 are clearance-fitted, the external thread at the bottom of the fixing rod 12 can be entirely located within the ejection hole 15.

[0118] By providing the fixing rod 12 and the second spring 13 , the upper mold body 22 in the upper mold mounting groove 19 can be more firmly fixed to prevent the upper mold body 22 from falling from the upper mold mounting frame 7 .

[0119] For example, when the upper mold body 22 is mounted in the upper mold mounting groove 19 with only a slight interference fit, the pressing block 26 can be pressed downward, causing the fixing rod 12 to simultaneously move downward until the bottom of the external thread on the fixing rod 12 contacts the top of the fixing internal threaded hole 24. Once contact is made, the pressing block 26 can be pressed downward further while being rotated (since the top of the second spring 13 abuts the bottom of the pressing block 26, this does not affect the rotation of the pressing block 26). At this point, the external thread on the fixing rod 12 screws into the fixing internal threaded hole 24 and engages with it, thereby connecting the fixing rod 12 to the upper mold body 22. Once connected, the upper mold body 22 is more securely fixed in the upper mold mounting groove 19 due to the elastic potential energy of the second spring 13 (i.e., the second spring 13 continues to pull the upper mold body 22 upward), thereby preventing the upper mold body 22 from falling off the upper mold mounting frame 7 and ensuring the normal shaping of the shielding film body 25.

[0120] In addition, after the shielding film body 25 is shaped, the upper mold body 22 can be quickly disengaged from the upper mold mounting groove 19 by means of the setting of the fixing rod 12. For example, after the shielding film body 25 is shaped, the pressing block 26 can be rotated in the opposite direction first to disengage the external thread on the fixing rod 12 from the thread of the fixed internal thread hole 24. After disengagement, the pressing block 26 can be pressed downward until the bottom end of the external thread on the fixing rod 12 abuts against the top end of the fixed internal thread hole 24. At this time, the pressing block 26 can be pressed downward again, and the fixing rod 12 will push the upper mold body 22 out of the upper mold mounting groove 19, thereby achieving rapid disengagement of the upper mold body 22 from the upper mold mounting groove 19, thereby greatly improving work efficiency.

[0121] According to one embodiment of the present invention, Figure 1 、 Figure 12-14 As shown, at least two buckles 23 are provided on the upper mold body 22, and the two buckles 23 are arranged opposite each other. At least two slots 21 are provided on the side wall of the lower mold body 20, and the two slots 21 are arranged one-to-one with the two buckles 23, and the slots 21 are configured to be detachably connected to the buckles 23.

[0122] In this embodiment, the number of the slots 21 and the number of the buckles 23 can both be two, and the two slots 21 can be respectively opened on the two side walls of the lower mold body 20, and the two buckles 23 can be respectively set on the two side walls of the upper mold body 22.

[0123] Those skilled in the art should understand that the slot 21 and the buckle 23 can also be modeled by the above-mentioned 3D printing technology, that is, when the lower mold body 20 and the upper mold body 22 are 3D printed, the slot 21 will be 3D printed on the lower mold body 20 at the same time, and the buckle 23 will also be 3D printed on the upper mold body 22 at the same time, which will not be elaborated here.

[0124] The arrangement of the latch 21 and the latch 23 allows the lower mold body 20 to be quickly separated from the lower mold mounting groove 3 after the shielding film body 25 is shaped. For example, when the shielding film body 25 is being shaped, i.e., when the lower mold body 20 and the upper mold body 22 are being fitted together, the latch 23 automatically engages within the latch 21. Once the shielding film body 25 is shaped, i.e., when the pressure on the pressure rod 16 ceases, the lower mold body 20 rises simultaneously with the rise of the upper mold body 22, thereby quickly separating the lower mold body 20 from the lower mold mounting groove 3. To separate the lower mold body 20 from the lower mold mounting groove 3, simply push the latch 23 outward slightly (the latch 23 can undergo slight elastic deformation) and release it from the latch 21. This allows the lower mold body 20 to be separated from the lower mold mounting groove 3, thereby removing the shaped shielding film body 25.

[0125] Furthermore, during bone augmentation surgery, after the shielding membrane body 25 is shaped, it is sometimes not immediately removed for use, but rather waits for a period of time. If the shaped shielding membrane body 25 is removed prematurely, it may be damaged by external factors (such as collisions) while waiting for use, thus preventing the smooth progress of the bone augmentation surgery. However, the provision of the latching slot 21 and the latch 23 prevents the shaped shielding membrane body 25 from being damaged by external factors while waiting for use.

[0126] For example, when the shielding membrane body 25 is shaped, the lower mold body 20 will rise at the same time as the upper mold body 22 rises, that is, the two will still be in a fitted state under the engagement of the slot 21 and the buckle 23. At this time, after the upper mold body 22 is removed from the upper mold mounting frame 7, the lower mold body 20 will still be in a fitted state with the upper mold body 22, and the shielding membrane body 25 is still between the lower mold body 20 and the upper mold body 22. Then, the lower mold body 20 and the upper mold body 22 can be used to provide good protection for the shielding membrane body 25, so as to prevent the shaped shielding membrane body 25 from being damaged by external factors while waiting for use, thereby ensuring the smooth progress of the bone augmentation surgery.

[0127] When the shielding membrane body 25 is needed later, the shielding membrane body 25 is taken out from the lower mold body 20 and the upper mold body 22 (so that the buckle 23 is disengaged from the card slot 21), and the shielding membrane body 25 can be "taken and used".

[0128] Those skilled in the art should understand that, in this embodiment, when the first spring 5 is in a fully compressed state, its length at this time will be much smaller than the combined thickness of the lower mold body 20 and the upper mold body 22, that is, the first spring 5 will not hinder the normal shaping of the shielding membrane body 25, and will not be elaborated here.

[0129] Those skilled in the art should also understand that the above embodiments or implementation plans of the present invention can be combined with each other and have corresponding technical effects.

[0130] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dental shielding film shaping device, characterized in that: It includes a base plate (1), a lower mold mounting frame (2), an upper mold mounting frame (7), a guide rod (4) and a pressing rod (16), wherein: The lower mold mounting frame (2) is mounted on the top end of the base plate (1), and a lower mold body (20) is mounted on the top end of the lower mold mounting frame (2); The guide rod (4) is mounted on the top end of the base plate (1), the upper mold mounting frame (7) is slidably mounted on the guide rod (4) in a limited manner, and an upper mold body (22) is mounted on the bottom end of the upper mold mounting frame (7); The top end of the lower mold body (20) and the bottom end of the upper mold body (22) are respectively provided with a shaping protrusion and a shaping cavity, and the shaping protrusion is adapted to and corresponding to the shaping cavity; the shape of the shaping protrusion and the shape of the shaping cavity are both matched with the shape of the patient's alveolar bone, and the curvature of the shaping protrusion and the curvature of the shaping cavity are both greater than the curvature of the patient's alveolar bone. When the curvature of the patient's alveolar bone is less than 1 mm -1 When the curvature of the shaping protrusion and the curvature of the shaping cavity are greater than the curvature of the patient's alveolar bone by 1 mm -1 -0.5mm -1 , when the patient's alveolar bone curvature is greater than 1mm -1 When the curvature of the shaping protrusion and the curvature of the shaping cavity are greater than the curvature of the patient's alveolar bone by 3 mm -1 -1mm -1 ; One end of the pressing rod (16) is hinged to one end of the base plate (1), and the pressing rod (16) is arranged to be able to press the upper mold body (22) on the lower mold body (20) so as to shape the shielding film body (25) through the shaping protrusion and the shaping cavity.

2. The dental shielding film shaping device according to claim 1, characterized in that: A lower mold mounting groove (3) adapted to the lower mold body (20) is formed at the top end of the lower mold mounting frame (2), and the lower mold body (20) is mounted in the lower mold mounting groove (3) and is in clearance fit with the lower mold mounting groove (3); An upper mold mounting groove (19) adapted to the upper mold body (22) is formed at the bottom end of the upper mold mounting frame (7), and the upper mold body (22) is mounted in the upper mold mounting groove (19) and is in interference fit with the upper mold mounting groove (19).

3. The dental shielding film shaping device according to claim 1, characterized in that: A guide rod sliding hole (8) adapted to the guide rod (4) is formed on the upper mold mounting frame (7), the guide rod (4) is sleeved in the guide rod sliding hole (8) and is in sliding fit with the inner wall of the guide rod sliding hole (8), and the upper mold mounting frame (7) is in limited sliding fit with the guide rod (4) through the guide rod sliding hole (8); A first spring (5) is sleeved on the guide rod (4), the bottom end of the first spring (5) abuts against the top end of the base plate (1), and the top end of the first spring (5) abuts against the bottom end of the upper mold mounting frame (7).

4. The dental shielding film shaping device according to claim 3, characterized in that: A number of balls (6) are ball-jointed on the side wall of the guide rod (4), and the end of the ball (6) away from the guide rod (4) is arranged to be able to be in sliding fit with the inner wall of the guide rod sliding hole (8), and the guide rod (4) is in sliding fit with the inner wall of the guide rod sliding hole (8) through the ball (6).

5. The dental shielding film shaping device according to claim 1, characterized in that: A bearing mounting rod (9) is mounted on the side wall of the upper mold mounting frame (7), a bearing (10) is mounted on the bearing mounting rod (9), a soft friction layer (11) is mounted on the outer ring of the bearing (10), and the pressing rod (16) abuts against the end of the soft friction layer (11) away from the bearing (10).

6. The dental shielding film shaping device according to claim 1, characterized in that: The pressing rod (16) is of a U-shaped structure; A pressure-holding hook (17) is also hinged on the base plate (1); When the shaping protrusion and the shaping cavity shape the shielding film body (25), the pressure-holding hook (17) is arranged to be able to fix the pressing rod (16) so as to hold the pressure of the shielding film body (25) being shaped.

7. The dental shielding film shaping device according to claim 6, characterized in that: A torsion spring (18) is installed at the hinge between the pressure-maintaining hook (17) and the bottom plate (1), and the two ends of the torsion spring (18) are respectively connected to the bottom plate (1) and the pressure-maintaining hook (17), and the torsion spring (18) is configured to enable the pressure-maintaining hook (17) and the bottom plate (1) to be arranged in a mutually perpendicular state; The bending portion of the pressure-maintaining hook (17) is an acute-angle structure.

8. The dental shielding film shaping device according to claim 2, characterized in that: The upper mold mounting frame (7) is provided with a fixed rod (12) for slidingly mounting the upper mold mounting frame (7). An ejection through hole (15) is provided on the upper mold mounting frame (7). The fixed rod (12) is located in the ejection through hole (15), and the inner side wall of the ejection through hole (15) is clearance-matched with the outer side wall of the fixed rod (12). The top of the upper mold body (22) is provided with a fixed internal threaded hole (24), the fixed internal threaded hole (24) is arranged corresponding to the fixed rod (12), the bottom of the fixed rod (12) is provided with an external thread, and the external thread on the fixed rod (12) is arranged to be threadably matched with the fixed internal threaded hole (24); A pressing block (26) is installed at the top of the fixing rod (12), and a second spring (13) is sleeved on the fixing rod (12). The bottom end of the second spring (13) is fixedly connected to the upper mold mounting frame (7), and the top end of the second spring (13) abuts against the bottom end of the pressing block (26).

9. The dental shielding film shaping device according to claim 2, characterized in that: At least two buckles (23) are provided on the upper mold body (22), and the two buckles (23) are arranged opposite to each other; At least two card slots (21) are provided on the side wall of the lower mold body (20), and the two card slots (21) are arranged in a one-to-one correspondence with the two buckles (23), and the card slots (21) are arranged to be detachably connected to the buckles (23).

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