Planting system for simultaneous planting of maxillary sinus outside-floor lifting operation

Abstract

The utility model discloses an implanting system for maxillary sinus outside-floor lifting operation synchronous implantation. The implanting system comprises an implant, a retention plate, a retention nail and a connecting abutment, the implant is connected with the retention plate through the connecting abutment, and both the implant and the retention plate are detachably connected with the connecting abutment; a retention hole is formed in the retention plate, and the retention nail is inserted into the retention hole to nail the retention plate on the alveolar bone of the maxillary sinus bottom. And blood nourishing holes are formed in the retention plate. The connecting base table comprises an inserting column part and a stud part; an insertion hole is formed in the implant, and the insertion column part is correspondingly inserted into the insertion hole of the implant, so that the implant is connected with the connecting abutment in a pluggable manner; a screw hole is formed in the retention plate, and the diameter of the screw hole is larger than that of the implant. When the implant is implanted, the implant is connected with the inserting column part of the connecting base table in an inserting and pulling mode, the inserting column part penetrates through the screw hole in the retention plate, and the stud part is screwed into the screw hole in the retention plate, so that the retention plate is in threaded connection with the connecting base table. When the height of the residual alveolar bone is too small, the initial stability of the implant can still be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of maxillary sinus floor lifting, in particular to an implantation system for implantation during maxillary sinus floor external lifting surgery. Background Art

[0002] The external maxillary sinus floor lift refers to the procedure of opening a window in the side wall of the maxillary sinus for patients with too low a height of the remaining alveolar bone in the maxillary posterior teeth area (<4mm). The mucosa of the maxillary sinus floor is peeled off and pushed upward under direct vision, and then bone replacement materials such as artificial synthetic bone powder or xenogeneic bone powder are filled in to increase the height of the alveolar bone. The traditional external maxillary sinus floor lift requires opening a window in the side wall of the maxillary sinus, resulting in a large range of mucoperiosteal flap and great trauma to the patient. In addition, when the remaining alveolar bone height is less than 2mm, since the initial stability of the implant cannot be guaranteed, bone powder needs to be implanted first. After 6-9 months of bone formation, the implant needs to be implanted again surgically, which increases the number of surgeries and treatment time for the patient, and increases the trauma and pain of the patient. Summary of the Invention

[0003] Purpose of the Invention: To overcome the shortcomings of the existing technology, the present invention provides an implant system for simultaneous implantation during an external sinus lift. This system eliminates the need for a fenestration in the sinus lateral wall during an external sinus lift. Instead, the flap is opened to expose the alveolar crest, where a fenestration is created, thereby reducing surgical trauma. Furthermore, even when the patient's remaining alveolar bone depth is too low, simultaneous implant placement during an external sinus lift can ensure initial implant stability.

[0004] Technical solution: In order to achieve the above-mentioned purpose, the utility model provides an implant system for simultaneous implantation during maxillary sinus floor lift surgery, comprising an implant, a retention plate, a retention pin and a connecting base; the implant is connected to the retention plate via the connecting base, and both the implant and the retention plate are detachably connected to the connecting base; retention holes are provided on the retention plate, and when the implant is implanted in the maxillary sinus, the retention pins are inserted into the corresponding retention holes to fasten the retention plate to the alveolar bone of the maxillary sinus floor.

[0005] Furthermore, the retention plate is provided with a blood nourishment hole, and the blood of the alveolar bone periosteum can pass through the blood nourishment hole to supply the bone powder filled into the maxillary sinus.

[0006] Furthermore, the blood nourishing hole is arranged on the retaining plate adjacent to the screw hole.

[0007] Furthermore, the retaining plate is provided with a plurality of retaining holes, and the plurality of retaining holes are arranged in a circumferential direction with the screw hole as the center.

[0008] Furthermore, the connecting base includes a column portion and a stud portion; a socket is provided on the implant, and the column portion is correspondingly inserted into the socket, so that the implant and the connecting base are plugged in and out connected; a screw hole is provided on the retaining plate, and the stud portion is correspondingly screwed into the screw hole, so that the retaining plate and the connecting base are threadedly connected.

[0009] Furthermore, a limiting piece is provided on one end of the stud portion away from the inserting column portion, and the stud portion rotates in the screw hole until the limiting piece is in contact with the fixing plate.

[0010] Furthermore, the outer diameter of the implant is smaller than the diameter of the screw hole.

[0011] Furthermore, the outer diameter of the stud portion is consistent with the hole diameter of the screw hole.

[0012] Furthermore, the retention plate is a plate body with certain strength and elasticity, and the retention plate can be deformed to be closely attached to the alveolar bone of the maxillary sinus floor.

[0013] Furthermore, the retention plate is made of pure titanium, titanium alloy or magnesium alloy. The magnesium alloy does not require a second operation to remove, thus reducing the number of operations and trauma.

[0014] Furthermore, the retaining nail is made of pure titanium, titanium alloy or magnesium alloy. The magnesium alloy does not require a second operation to remove, thus reducing the number of operations and trauma.

[0015] Beneficial effects: The implant system of the utility model for simultaneous implantation during maxillary sinus floor augmentation surgery has the following beneficial effects:

[0016] 1) The implant is fixed with the help of the retention plate, retention screw and connecting base. When the remaining alveolar bone height is too small, the implant can be implanted at the same time as the bone powder filling, and the initial stability of the implant can be guaranteed, thereby reducing the number of surgeries and shortening the treatment time.

[0017] 2) When using this system for maxillary sinus floor lift surgery, there is no need to open a window on the side wall of the maxillary sinus. Instead, only the alveolar ridge top can be exposed by turning the flap and a window can be opened on the alveolar ridge top, thereby reducing surgical trauma.

[0018] 3) There are blood nourishing holes on the retention plate. The blood of the alveolar bone periosteum can pass through the blood nourishing holes to supply the bone powder filled into the maxillary sinus, thereby promoting the osteogenesis of the bone powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Attachment Figure 1 Schematic diagram of implant placement in the maxillary sinus;

[0020] Attachment Figure 2 Schematic diagram of the connection between the implant and the connecting abutment;

[0021] Attachment Figure 3Schematic diagram of the structure of the retention plate;

[0022] Attachment Figure 4 Schematic diagram of the structure for connecting the base.

[0023] In the figure: 1. Implant; 2. Retention plate; 3. Retention pin; 4. Connecting base; 5. Blood nourishment hole; 6. Insertion column; 7. Screw column; 8. Screw hole; 9. Retention hole; 10. Limiting plate; 11. Bone powder; 12. Alveolar bone. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] As attached Figures 1 to 4 The implant system for simultaneous implantation during maxillary sinus floor external lift surgery comprises an implant 1, a retaining plate 2, a retaining pin 3 and a connecting base 4. The implant 1 is connected to the retaining plate 2 via the connecting base 4, and both the implant 1 and the retaining plate 2 are detachably connected to the connecting base 4. The retaining plate 2 is provided with a retaining hole 9, and the retaining pin 3 is correspondingly inserted into the retaining hole 9 to fasten the retaining plate 2 to the alveolar bone 12 at the bottom of the maxillary sinus. The retaining plate 2 is provided with a blood nourishing hole 5, and the blood nourishing hole 5 is arranged adjacent to the screw hole 8 on the retaining plate 2. The blood of the alveolar bone mucoperiosteum can pass through the blood nourishing hole 5 to supply the bone powder 11 filled into the maxillary sinus. The connecting base 4 includes a column portion 6 and a screw portion 7; a socket is provided on the implant 1, and the column portion 6 is correspondingly inserted into the implant socket, so that the implant 1 is plugged and unplugged and connected to the connecting base 4; a screw hole 8 is provided on the retaining plate 2, and the diameter of the screw hole 8 is larger than the diameter of the implant 1. To implant the implant 1, the plug-in portion 6 of the implant 1 and the connecting abutment 4 are connected by plugging and unplugging. The plug-in portion 7 of the connecting abutment 4 is threaded into the corresponding screw hole 8 on the retaining plate 2, threading the retaining plate 2 and the connecting abutment 4 into a fixed position. This ensures the initial stability of the implant 1 even when the remaining alveolar bone 12 is too low. Implant 1 can be implanted while bone powder 11 is being filled into the maxillary sinus, reducing the number of surgical procedures and shortening treatment time.

[0026] After maxillary sinus floor lift surgery, bone powder 11 is implanted. A sufficient blood supply is essential for successful osteogenesis. Therefore, a blood-feeding hole 5 is provided in the retention plate 2. Blood from the mucoperiosteum of the alveolar bone 12 can flow through the blood-feeding hole 5 to the bone powder 11 inserted into the maxillary sinus, ensuring a sufficient blood supply and enhancing osteogenesis. The blood-feeding hole 5 is located adjacent to the screw hole 8 on the retention plate 2.

[0027] As attached Figure 1As shown in , when using this system to perform maxillary sinus floor lift surgery, there is no need to open a window on the side wall of the maxillary sinus. Instead, only the flap can be turned to expose the alveolar ridge top, and a window can be opened on the alveolar ridge top. The window is opposite to the screw hole 8, and the blood nourishing hole 5 is located near the screw hole 8. This allows the blood in the oral mucoperiosteum to more easily pass through the blood nourishing hole 5 and the window to reach the bone powder 11 above the retention plate 2, thereby providing blood supply for the bone powder 11 to form bones.

[0028] The retaining plate 2 is provided with a plurality of retaining holes 9 which are arranged in a circumferential direction with the screw hole 8 as the center. A plurality of retaining nails 3 are respectively inserted into the retaining holes 9 to stably fix the retaining plate 2 on the alveolar bone 12 of the maxillary sinus floor.

[0029] As attached Figure 2 As shown in the figure, a limiting plate 10 is provided on the end of the stud portion 7 away from the plug portion 6. The outer diameter of the limiting plate 10 is larger than the outer diameter of the screw hole 8. The stud portion 7 is rotated in the screw hole 8 until the limiting plate 10 is in contact with the retaining plate 2 to limit the position of the implant 1 and the connecting base 4 to prevent the implant 1 from falling into the maxillary sinus.

[0030] The outer diameter of the implant 1 is smaller than the diameter of the screw hole 8 , so that the implant 1 can be inserted into the screw hole 8 .

[0031] The retention plate 2 is a plate with a certain strength and elasticity. Its shape can be adjusted to allow it to fit snugly against the alveolar bone 12 at the floor of the maxillary sinus. The retention pins 3 are then screwed in to secure the plate. Specifically, the retention plate 2 is a titanium plate. The retention pins 3 are titanium pins and are threaded into the retention holes 9.

[0032] The application method of the present invention is as follows: when performing an external maxillary sinus floor lift, first open a window at the top of the alveolar ridge, peel off the maxillary sinus mucosa, fill in bone powder 11, then cross the retention plate 2 across the window at the top of the alveolar ridge bone, and adjust the shape of the retention plate 2 so that the hole of the retention plate 2 fits the surface of the alveolar bone 12 as much as possible, then screw the retention nail 3 into the retention hole 9, fix the retention plate 2, and make the retention plate 2 completely fit the surface of the alveolar bone 12; the diameter of the screw hole 8 in the center of the retention plate 2 is larger than the implant 1, and the column part 6 is inserted into the socket of the implant 1 accordingly, so that the implant 1 and the connecting base 4 are connected outside the mouth by plug-in connection. After the connection is completed, the implant 1 and the connecting base 4 are rotated and implanted, and the implant 1 is buried in the implanted bone powder 11. The connecting base 4 is threadedly connected to the screw hole 8 of the retention plate 2 through the stud part 7. When the height of the remaining alveolar bone 12 is too small, the implant system of the present invention can implant the implant 1 at the same time as the bone powder 11 is filled in, and ensure the initial stability of the implant 1, thereby reducing the number of operations and shortening the treatment time.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An implant system for simultaneous implantation during maxillary sinus floor lift surgery, characterized by: The invention comprises an implant (1), a retaining plate (2), a retaining pin (3) and a connecting base (4); the implant (1) is connected to the retaining plate (2) via the connecting base (4), and the implant (1) and the retaining plate (2) are both detachably connected to the connecting base (4); a retaining hole (9) is provided on the retaining plate (2); when the implant (1) is implanted in the maxillary sinus, the retaining pin (3) is correspondingly inserted into the retaining hole (9), and the retaining plate (2) is fastened to the alveolar bone (12) at the bottom of the maxillary sinus.

2. The implant system for simultaneous implantation during maxillary sinus floor lift surgery according to claim 1, characterized in that: The retaining plate (2) is provided with a blood nourishing hole (5), and the blood of the alveolar ridge mucoperiosteum can pass through the blood nourishing hole (5) to supply the bone powder (11) filled into the maxillary sinus.

3. The implant system for simultaneous implantation during maxillary sinus floor lift surgery according to claim 2, characterized in that: The connecting base (4) comprises an inserting column portion (6), a screw column portion (7) and a limiting plate (10); a plug hole is provided on the implant (1), and the inserting column portion (6) is correspondingly inserted into the plug hole, so that the implant (1) and the connecting base (4) are plug-in connected; a screw hole (8) is provided on the retaining plate (2), and the screw column portion (7) is correspondingly screwed into the screw hole (8), so that the retaining plate (2) and the connecting base (4) are threadedly connected.

4. The implant system for simultaneous implantation during maxillary sinus floor lift surgery according to claim 3, characterized in that: The blood nourishing hole (5) is arranged on the retaining plate (2) adjacent to the screw hole (8).

5. The implant system for simultaneous implantation during maxillary sinus floor lift surgery according to claim 3, characterized in that: The retaining plate (2) is provided with a plurality of retaining holes (9), and the plurality of retaining holes (9) are arranged in a circular direction with the screw hole (8) as the center.

6. The implant system for simultaneous implantation during maxillary sinus floor lift surgery according to claim 3, characterized in that: A limiting piece (10) is provided on one end of the stud portion (7) away from the inserting column portion (6), and the stud portion (7) rotates in the screw hole (8) until the limiting piece (10) is in contact with the fixing plate (2).

7. The implant system for simultaneous implantation during maxillary sinus floor lift surgery according to claim 3, characterized in that: The outer diameters of the column portion (6) and the implant (1) are both smaller than the diameter of the screw hole (8).

8. The implant system for simultaneous implantation during maxillary sinus floor lift surgery according to claim 1, characterized in that: The retaining plate (2) is a plate body with certain strength and elasticity, and the retaining plate (2) can be deformed to be closely attached to the alveolar bone (12) at the bottom of the maxillary sinus.

9. The implant system for simultaneous implantation during maxillary sinus floor lift surgery according to claim 8, characterized in that: The retaining plate (2) is made of pure titanium, titanium alloy or magnesium alloy.

10. The implant system for simultaneous implantation during maxillary sinus floor lift surgery according to claim 1, characterized in that: The retaining pin (3) is made of pure titanium, titanium alloy or magnesium alloy.

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