Self-tapping oral implant

Abstract

The application discloses a self-tapping oral implant, comprising a main body, a containing cavity arranged in the inside of the main body, and a cutting groove arranged on the outside wall of the main body, wherein the cutting groove is communicated with the containing cavity. When the main body is screwed into the implant cavity of the alveolar bone of a patient, the main body cuts the inner wall of the implant cavity to form bone chips, the bone chips flow upwards along the cutting groove of the outside wall of the main body, the cutting groove is communicated with the containing cavity, the bone chips in the cutting groove flow into the containing cavity, most of the bone chips are received in the containing cavity of the main body, and the loss of the bone tissue of the alveolar bone to the outside is avoided; in the healing process of the alveolar bone, the bone chips in the containing cavity and the cutting groove can be combined with the alveolar bone together due to the communication between the containing cavity and the cutting groove and the combination of the cutting groove and the alveolar bone, so that the main body is more stably fixed in the alveolar bone of the patient. The application can be applied to the field of tooth implantation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of dental implant, in particular to a self-tapping oral implant. BACKGROUND

[0002] The self-tapping oral implant has a self-tapping performance. Before the self-tapping oral implant is implanted, a implant cavity is prepared in the patient's alveolar bone, and then the self-tapping oral implant is screwed into the implant cavity, so that the threads of the self-tapping oral implant cut the inner wall of the implant cavity to form connecting threads on the inner wall of the implant cavity. The existing self-tapping oral implant is generally provided with a cutting groove for discharging or containing bone chips. Although the cutting groove can contain a small amount of bone chips, most of the bone chips are directly discharged to the outside through the cutting groove, resulting in the loss of the patient's alveolar bone tissue. SUMMARY

[0003] The present application aims to provide a self-tapping oral implant to solve one or more technical problems in the prior art, at least to provide a beneficial choice or create conditions.

[0004] The technical scheme adopted to solve the above technical problems is:

[0005] A self-tapping oral implant, comprising:

[0006] a main body;

[0007] a containing cavity arranged inside the main body;

[0008] a cutting groove arranged on the outer side wall of the main body, the cutting groove being communicated with the containing cavity.

[0009] The beneficial effects of the present application are: when the main body is screwed into the implant cavity of the patient's alveolar bone, the main body cuts the inner wall of the implant cavity to form bone chips, the bone chips flow upward along the cutting groove of the outer side wall of the main body, and the cutting groove is communicated with the containing cavity, so that the bone chips in the cutting groove flow into the containing cavity, most of the bone chips are received in the containing cavity of the main body, and the loss of the alveolar bone tissue to the outside is avoided; during the healing process of the alveolar bone, since the containing cavity is communicated with the cutting groove and the cutting groove is attached to the alveolar bone, the bone chips in the containing cavity and the cutting groove can be combined with the alveolar bone, which helps the mutual combination of the main body and the alveolar bone, and makes the main body more firmly fixed in the patient's alveolar bone.

[0010] As a further improvement of the above technical scheme, the cutting groove extends upward from the bottom end of the main body.

[0011] During the process of screwing the main body into the implant cavity, the cutting amount of the main body on the alveolar bone is large at the bottom, and the cutting groove extends upward from the bottom end of the main body, which helps the bone chips at the bottom end of the main body to flow into the containing cavity through the cutting groove more quickly, avoiding the accumulation of bone chips causing the main body to be stuck.

[0012] As a further improvement of the above technical solution, the cutting groove spirally extends from the bottom to the top along the circumferential direction of the main body.

[0013] The cutting groove spirally extends from the bottom to the top along the circumferential direction of the main body, and during the process of cutting the inner wall of the planting hole of the main body, the cutting groove rotates with the main body, so that the bone chips can flow along the spirally extending cutting groove, prolong the flow distance of the bone chips, and make the bone chips flow into the receiving cavity more.

[0014] As a further improvement of the above technical solution, the cutting groove is provided on the periphery of the receiving cavity, and the cutting groove is connected to the receiving cavity in the horizontal direction.

[0015] The cutting groove is connected to the receiving cavity in the horizontal direction, which reduces the distance of the bone chips flowing into the receiving cavity through the cutting groove, so that the bone chips in the cutting groove can flow into the receiving cavity more quickly.

[0016] As a further improvement of the above technical solution, the direction of the cutting groove towards the outside of the main body is the outer side of the cutting groove, and the groove width of the cutting groove gradually decreases from the outer side to one side of the receiving cavity.

[0017] The groove width of the cutting groove gradually decreases from the outer side to one side of the receiving cavity, so that the cutting groove forms a funnel-like structure with the outer side being larger than the inner side. When the bone chips continuously enter the cutting groove, the bone chips are extruded by the inner side wall of the cutting groove, so that the speed of the bone chips flowing into the receiving cavity is accelerated.

[0018] As a further improvement of the above technical solution, the top end of the receiving cavity is higher than the top end of the cutting groove.

[0019] If the bone chips fill the top end of the receiving cavity, because the top end of the receiving cavity is higher than the top end of the cutting groove, the top end of the receiving cavity forms a concave cavity with an opening below. The bone chips located between the top end of the receiving cavity and the top end of the cutting groove are intercepted by the inner side wall of the receiving cavity, so that the bone chips at the top end of the receiving cavity are prevented from being extruded into the cutting groove. The bone chips in the cutting groove continuously fill the receiving cavity, which helps the later bone chips continuously extrude the bone chips in the receiving cavity, so that the bone chips in the receiving cavity are more tightly stacked together, which helps the mutual combination of the bone chips in the receiving cavity.

[0020] As a further improvement of the above technical solution, the self-tapping oral implant further comprises an external thread provided on the outer side wall of the main body, and the cutting groove intersects the external thread in the up-down direction.

[0021] When the external thread processes the thread on the inner side wall of the implant hole, bone debris flows upward along the external thread, the cutting groove cuts the external thread of the main body in the up-down direction, and the bone debris flows into the cutting groove and enters the accommodation cavity. Due to the storage function of the accommodation cavity for bone debris, the bone debris is prevented from accumulating in the cutting groove, so that the part of the external thread cut by the cutting groove can be exposed and form a cutting edge, and the cutting of the external thread on the implant hole is more smooth.

[0022] As a further improvement of the above technical solution, the external thread is a double thread.

[0023] The external thread of the main body is a double thread, and the lead of the double thread is greater than that of the single thread, which helps the main body to be screwed into the implant hole of the alveolar bone, and the bone debris is more likely to flow into the cutting groove along the external thread.

[0024] As a further improvement of the above technical solution, the cutting groove has a plurality of cutting grooves, and the plurality of cutting grooves are distributed along the circumference of the main body.

[0025] The plurality of cutting grooves are distributed along the circumference of the main body, and the plurality of cutting grooves simultaneously fill the bone debris into the accommodation cavity, so that the bone debris is filled into the accommodation cavity from multiple positions on the outer periphery of the accommodation cavity, and the continuously incoming bone debris extrudes the bone debris in the accommodation cavity from multiple directions, which helps the bone debris to be more densely accumulated together in the accommodation cavity.

[0026] As a further improvement of the above technical solution, the horizontal cross-sectional area of the accommodation cavity gradually increases from bottom to top.

[0027] The horizontal cross-sectional area of the accommodation cavity gradually increases from bottom to top, the inner side wall of the accommodation cavity forms a conical structure with the upper part being larger and the lower part being smaller, the bone debris at the bottom of the accommodation cavity is extruded by the bone debris above and the inner side wall of the accommodation cavity, which helps the bone debris accumulated at the bottom of the accommodation cavity to be more densely combined together, and improves the stability of the bone debris accumulated in the accommodation cavity. BRIEF DESCRIPTION OF DRAWINGS

[0028] The application will be further described below with reference to the drawings and examples;

[0029] Fig. 1 is a structure schematic view of an embodiment of the self-tapping oral implant provided by the application;

[0030] Fig. 2 is a bottom view schematic view of an embodiment of the self-tapping oral implant provided by the application;

[0031] Fig. 3 is a sectional view schematic view of an embodiment of the self-tapping oral implant provided by the application.

[0032] 100, main body, 200, accommodation cavity, 300, cutting groove, 400, external thread. DETAILED DESCRIPTION

[0033] The specific embodiments of the present application will now be described in detail with reference to the accompanying drawings, preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part of the description, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the scope of protection of the present application.

[0034] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right and the like, is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0035] In the description of the present application, if the word "several" or the like is described, it means one or more, the meaning of more than two, greater than, less than, more than, etc. is not included in the number, and the above, below, within, etc. is understood to include the number.

[0036] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting and the like should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0037] Reference Figs. 1 to 3 The self-tapping oral implant of the present application is made as follows:

[0038] The self-tapping oral implant comprises a main body 100, a receiving cavity 200, a cutting groove 300 and an external thread 400.

[0039] The main body 100 is in a conical structure with the upper part larger and the lower part smaller, and the outer diameter of the main body 100 gradually increases from bottom to top. The top of the main body 100 is provided with a mounting hole for connecting an abutment, and the bottom wall of the mounting hole is provided with a threaded hole for connecting a central screw, the axis of the mounting hole, the threaded hole and the main body 100 is located on the same vertical line.

[0040] The receiving cavity 200 is arranged inside the main body 100, and the receiving cavity 200 is located at the bottom of the main body 100, below the threaded hole, and spaced apart from the threaded hole. The horizontal cross-sectional area of the receiving cavity 200 gradually increases from bottom to top, and the receiving cavity 200 is in a conical chamber with the upper part larger and the lower part smaller.

[0041] The outer side wall of the main body 100 is provided with an external thread 400, the external thread 400 is a double thread, and the external thread 400 spirally extends upward from the bottom end of the main body 100 to the top end of the main body 100. The cutting groove 300 is arranged on the outer side wall of the main body 100, the cutting groove 300 spirally extends upward from the bottom end of the main body 100, the rotation direction of the cutting groove 300 is the same as that of the external thread 400, the cutting groove 300 is located on the periphery of the accommodating cavity 200, the cutting groove 300 communicates with the accommodating cavity 200 in the horizontal direction, and the top end of the accommodating cavity 200 is higher than that of the cutting groove 300. The side of the cutting groove 300 facing the outside of the main body 100 is an outer side, the side of the cutting groove 300 facing the accommodating cavity 200 is an inner side, and the groove width of the cutting groove 300 gradually decreases from the outer side to the inner side. The cutting groove 300 has three, and the three cutting grooves 300 are uniformly distributed along the circumference of the main body 100 and surround the periphery of the accommodating cavity 200.

[0042] When the oral implant is processed, the processing of the accommodating cavity 200 is more complex, and the whole can be made in the form of laser selective melting 3D printing technology, or the main body 100 and the accommodating cavity 200 are first 3D printed, then the mounting hole and the threaded hole at the top of the main body 100 are processed by using a drilling equipment, and finally the external thread 400 and the cutting groove 300 of the outer side wall of the main body 100 are processed by using a cutting equipment.

[0043] In some embodiments, the outer side wall of the main body 100 is only provided with a single cutting groove 300, and the single cutting groove 300 can also realize the function of discharging bone chips into the accommodating cavity 200, and the fewer the number of cutting grooves 300, the higher the structural strength of the bottom end of the main body 100, so that the bottom end of the main body 100 is not easy to deform or break when the main body 100 is screwed into the implant cavity.

[0044] In some embodiments, the cutting groove 300 extends in the vertical direction, and in the process of screwing the main body 100 into the implant cavity, the cutting groove 300 can scrape the bone chips to flow into the accommodating cavity 200, the cutting groove 300 extending vertically is relatively simple in processing method compared with the cutting groove 300 extending spirally, and the bone chips flow a shorter distance along the cutting groove 300 extending vertically, and the rotation of the cutting groove 300 enables the bone chips to be quickly discharged into the accommodating cavity 200.

[0045] In some embodiments, the external thread 400 and the cutting groove 300 are arranged above and below each other and are separated from each other, that is, the cutting groove 300 is located below the external thread 400, the cutting groove 300 serves as a cutting part at the bottom end of the main body 100, and the cutting groove 300 expands the implant cavity, while the external thread 400 serves as a cutting part of the outer side wall of the main body 100, and the external thread 400 processes threads on the inner side wall of the implant cavity.

[0046] In some embodiments, the accommodation cavity 200 is arranged above and below the cutting groove 300, and the top end of the cutting groove 300 is communicated with the accommodation cavity 200, so that the bone chips flow along the cutting groove 300 to the top end and then enter the accommodation cavity 200, and the bone chips entering the accommodation cavity 200 push the bone chips in the accommodation cavity 200 to gradually accumulate upward. Alternatively, the cutting groove 300 is arranged at the periphery of the accommodation cavity 200, but the top end of the cutting groove 300 is communicated with the top end of the accommodation cavity 200, the bone chips flow along the cutting groove 300 to the top end and then enter the accommodation cavity 200, and the bone chips entering the accommodation cavity 200 fall down to the bottom of the accommodation cavity 200 and accumulate, so that the bone chips can be stored in the bottom-closed accommodation cavity 200.

[0047] In some embodiments, the cutting groove 300 is located at the middle section of the main body 100, and the bone chips cut by the main body 100 at the bottom end of the implant hole flow to the middle section of the main body 100 and then enter the cutting groove 300, so as to reduce the cutting amount of the cutting groove 300 and avoid damage to the cutting edge of the cutting groove 300 and loss of bone chips.

[0048] In some embodiments, the external thread 400 is a single-threaded thread, and the self-locking performance of the main body 100 after being implanted into the implant hole is high.

[0049] The preferred embodiments of the application are specifically described above, but the application is not limited to the described embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the application. These equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A self-drilling oral implant, characterized in that: include: main body; a receiving cavity, which is provided inside the main body; a cutting groove, which is provided on the outer wall of the main body, the cutting groove being connected to the accommodating cavity; The cutting groove extends upward from the bottom end of the main body; The cutting groove spirally extends from bottom to top around the circumference of the main body; The cutting groove is provided on the periphery of the accommodating cavity, and the cutting groove is connected to the accommodating cavity in a horizontal direction; The direction of the cutting groove toward the outside of the main body is defined as the relative outer side of the cutting groove, and the groove width of the cutting groove gradually decreases from the outer side toward one side of the accommodating cavity; The top of the accommodating cavity is higher than the top of the cutting groove; There are a plurality of cutting grooves, and the plurality of cutting grooves are distributed at intervals along the circumference of the main body; The horizontal cross-sectional area of ​​the accommodating cavity gradually increases from bottom to top.

2. The self-drilling oral implant according to claim 1, characterized in that: The self-tapping oral implant further includes an external thread, which is provided on the outer side wall of the main body, and the cutting groove cuts off the external thread along the up and down directions.

3. The self-drilling oral implant according to claim 2, wherein: The external thread is a double-thread thread.

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