Abutment extractor and implant kit

Abstract

The utility model relates to the technical field of dental implant, and discloses an abutment extractor and an implant suite, the abutment extractor is used for extracting an abutment, the abutment is provided with a through hole, an internal thread is formed on the inner peripheral wall of the through hole, the abutment extractor comprises a wrench matching part and a support rod, the support rod is connected with the wrench matching part, and the implant suite is arranged on the support rod. And an external thread is arranged on the peripheral wall of the supporting rod and is used for being in threaded fit with the internal thread of the base station. According to the technical scheme of the utility model, the drill base and the implant which are self-locked in taper can be conveniently separated.

Description

Technical Field

[0001] The utility model relates to the technical field of dental implantation, in particular to an abutment extractor and an implant kit. Background Art

[0002] Dental implant is a common method of tooth restoration used to replace missing teeth. During the dental implant process, the dentist will implant an artificial tooth root (generally called an implant) into the alveolar bone and then install an artificial crown on the implant.

[0003] In the related art, the implant is connected to the artificial crown through the abutment. The implant is provided with a conical mounting groove, and one end of the abutment is inserted into the conical mounting groove to form a conical self-locking. After the implant is implanted into the alveolar bone and before the artificial crown is installed, the abutment on the implant will be replaced, and the original abutment needs to be removed. At present, the abutment and the implant are generally separated by pulling or shaking the abutment with the help of tools. When the abutment and the implant form a conical self-locking, violent pulling and shaking can easily cause the implant to loosen and cause discomfort to the patient. Utility Model Content

[0004] The main purpose of the utility model is to provide an abutment extractor, which is intended to facilitate the separation of a taper self-locking abutment and an implant.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an abutment extractor for extracting the abutment, wherein the abutment is provided with a through hole, and the inner peripheral wall of the through hole is formed with an internal thread, and the abutment extractor comprises:

[0006] a wrench fitting; and

[0007] A support rod is connected to the wrench mating portion, and an outer peripheral wall of the support rod is provided with an external thread, and the external thread is used for threaded engagement with the internal thread of the base.

[0008] Optionally, the abutment extractor further comprises a limiting rod, wherein the limiting rod is arranged at one end of the support rod away from the wrench fitting portion, and the limiting rod is used for abutting against the implant for limiting position.

[0009] Optionally, a transition surface is formed at a connection between an end surface of the limiting rod away from the supporting rod and an outer side wall of the limiting rod, and the transition surface is an arched surface or an inclined surface.

[0010] Optionally, the diameter of the limiting rod is smaller than the diameter of the supporting rod.

[0011] Optionally, the abutment extractor further comprises an extension rod, one end of which is connected to the wrench mating portion, and the other end of which is connected to the support rod.

[0012] Optionally, a key groove is formed at one end of the wrench fitting portion away from the support rod, and the cross-sectional shape of the key groove is a regular polygon.

[0013] Optionally, the cross-sectional shape of the end of the wrench fitting portion away from the support rod is a regular polygon.

[0014] The utility model also provides an implant kit, which comprises:

[0015] An implant, wherein the implant is formed with a tapered mounting groove;

[0016] A base; a part of the structure of the base is inserted into the conical mounting groove and abuts against the side wall of the conical mounting groove to limit the position, the base is formed with a through hole, and the inner peripheral wall of the through hole is formed with an internal thread; and

[0017] The base extractor comprises a wrench fitting portion and a support rod, wherein the support rod is connected to the wrench fitting portion, an outer peripheral wall of the support rod is provided with an external thread, and the support rod is screwed to the through hole.

[0018] Optionally, the through hole includes a through hole and a matching hole which are arranged from top to bottom and connected, the diameter of the through hole is larger than the diameter of the matching hole, and the inner wall of the matching hole is formed with the internal thread.

[0019] Optionally, the base includes a base body and a connecting frustum, the base body is connected to the connecting frustum in an arc transition, and the connecting frustum is inserted into a conical mounting groove of the implant.

[0020] In the technical solution of the utility model, the support rod can pass through the through hole of the base and abut against the implant. Then, through the reaction force generated by the screwing of the external thread of the support rod and the internal thread of the base, the base can move in the direction away from the implant, so that the base and the implant are no longer locked, and the base can be easily removed. The reaction force generated by the screwing acts between the base and the implant, and will not cause a pulling force between the implant and the alveolar bone to damage the connection strength of the implant and the alveolar bone, and also avoids harm to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1A schematic diagram of the three-dimensional structure of an embodiment of the abutment extractor provided by the utility model;

[0023] Figure 2 A cross-sectional view of an embodiment of the implant kit provided by the utility model;

[0024] Figure 3 A cross-sectional view of the base.

[0025] Description of Figure Numbers:

[0026] Label name Label name 1000 Abutment Extractor 51 Conical mounting slot 1 Wrench fitting 52 Thread groove 11 keyway 6 abutment 2 Support rod 61 Abutment body 3 Limit rod 62 Connecting round table 31 Transition surface 63 Through Hole 4 Extension rod 631 Vias 2000 Implant Kits 632 Matching hole 5 Implants

[0027] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0031] Dental implant is a common method of tooth restoration used to replace missing teeth. During the dental implant process, the dentist will implant an artificial tooth root (generally called an implant) into the alveolar bone and then install an artificial crown on the implant.

[0032] In the related art, the implant is connected to the artificial crown through the abutment. The implant is provided with a conical mounting groove, and one end of the abutment is inserted into the conical mounting groove to form a conical self-locking. After the implant is implanted into the alveolar bone and before the artificial crown is installed, the abutment on the implant will be replaced, and the original abutment needs to be removed. At present, the abutment and the implant are generally separated by pulling or shaking the abutment with the help of tools. When the abutment and the implant form a conical self-locking, violent pulling and shaking can easily cause the implant to loosen and cause discomfort to the patient.

[0033] In order to solve the above problems, the utility model proposes an abutment extractor, which is intended to facilitate the separation of the abutment and implant formed into a tapered self-locking state. Figure 1 This is an embodiment of the base extractor provided by the utility model.

[0034] Please refer to Figure 1 The utility model proposes a base extractor 1000 for removing a base 6. The base 6 is provided with a through hole 63. The inner peripheral wall of the through hole 63 is formed with an internal thread. The base extractor 1000 includes a wrench matching part 1 and a support rod 2. The support rod 2 is connected to the wrench matching part 1. The outer peripheral wall of the support rod 2 is provided with an external thread, and the external thread is used to be threadedly matched with the internal thread of the base 6.

[0035] In this embodiment, the support rod 2 can pass through the through hole 63 of the base 6 to abut against the implant 5, and then the base 6 can move in a direction away from the implant 5 through the reaction force generated by the screwing of the external thread of the support rod 2 and the internal thread of the base 6, so that the base 6 and the implant 5 are no longer locked, and the base 6 can be easily removed. The reaction force generated by the screwing acts between the base 6 and the implant 5, and will not cause a pulling force between the implant 5 and the alveolar bone to damage the connection strength of the implant 5 and the alveolar bone, and also avoids harm to the patient.

[0036] In order to facilitate the dentist to use the abutment extractor 1000, in one embodiment of the present invention, Figure 1As shown, the abutment extractor 1000 also includes a limit rod 3, which is arranged at one end of the support rod 2 away from the wrench fitting portion 1, and the limit rod 3 is used to abut against the implant 5 for limiting position. The outer peripheral wall of the limit rod 3 is a smooth surface. By arranging the limit rod 3 at the end of the support rod 2 away from the wrench fitting portion 1, when the abutment extractor 1000 is extended into the through hole of the abutment 6, the limit rod 3 can easily pass through the through hole 63 of the abutment 6 and abut against the implant 5, so that the support rod 2 does not need to abut against the implant 5. In actual use, only a certain length of threaded section is required to meet the requirement of separating the abutment 6 from the implant 5, that is, the length of the support rod 2 is reduced, so that when the dentist uses the abutment extractor 1000, he only needs to rotate the abutment extractor 1000 briefly to make the limit rod 3 abut against the implant 5 for limiting position, and continue to rotate to separate the abutment 6 from the implant 5, so that the abutment 6 is convenient to remove. Among them, the material of the abutment 6 can be titanium alloy, etc., and the wrench fitting part 1 and the support rod 2 in the abutment extractor 1000 can be made of materials with high structural strength such as carbon steel and stainless steel, so that the abutment extractor 1000 is not easy to break or deform in the patient's mouth during use, thereby improving the stability and safety of the abutment 6 when being taken out, reducing the patient's discomfort during the process of taking out the abutment 6, and also helping to increase the service life of the abutment extractor 1000, so that the abutment extractor 1000 can be repeatedly disinfected and used.

[0037] Further, in one embodiment of the present invention, Figure 1 As shown, a transition surface 31 is formed at the connection between the end surface of the limiting rod 3 away from the support rod 2 and the outer wall of the limiting rod 3. The transition surface 31 is an arched surface or an inclined surface, preferably an arched surface. In this way, after the limiting rod 3 abuts against the implant 5, when the base extractor 1000 is rotated, the contact surface between the limiting rod 3 and the implant 5 is an arc surface, which can reduce the friction between the limiting rod 3 and the implant 5 on the one hand, making it easier to rotate the base extractor 1000, and reduce the sharpness of the limiting rod 3 on the other hand, avoiding damage to the implant 5.

[0038] It is understandable that the diameter of the support rod 2 will be compatible with the inner diameter of the threaded section of the through hole of the base 6. Therefore, in one embodiment of the present invention, Figure 1 As shown, the diameter of the limiting rod 3 is smaller than the diameter of the supporting rod 2. It is understandable that if the diameter of the limiting rod 3 is equal to the diameter of the supporting rod 2, when the abutment extractor 1000 is inserted into the through hole 63 of the abutment 6, the internal thread of the inner peripheral wall of the through hole will affect the passage of the limiting rod 3, and the diameter of the limiting rod 3 is designed to be smaller than the diameter of the supporting rod 2, and the limiting rod 3 can easily pass through the through hole of the abutment 6 and abut against the implant 5.

[0039] Further, in one embodiment of the present invention, Figure 1As shown, the abutment extractor 1000 also includes an extension rod 4, one end of which is connected to the wrench fitting part 1, and the other end of the extension rod 4 is connected to the support rod 2. By adjusting the length of the extension rod 4, the extension rod 4 and the overall length of the abutment extractor 1000 can be adjusted, so that the wrench fitting part 1 can be at a suitable height when in use, making it convenient for the dentist to rotate the wrench fitting part 1 with a wrench.

[0040] Specifically, in one embodiment of the present invention, Figure 1 As shown, a keyway 11 is formed at one end of the wrench fitting part 1 away from the support rod 2, and the cross-sectional shape of the keyway 11 is a regular polygon, specifically a square, a regular hexagon, a regular octagon, etc., and a socket wrench adapted to the keyway 11 is selected accordingly, and a torque force is applied to the wrench fitting part 1 through the cooperation of the socket wrench and the keyway 11, thereby driving the abutment extractor 1000 to rotate, and finally separating the abutment 6 from the implant 5. In another embodiment of the utility model, the cross-sectional shape of the end of the wrench fitting part 1 away from the support rod 2 is a regular polygon, specifically a square, a regular hexagon, a regular octagon, etc., and a socket wrench adapted to the wrench fitting part 1 is selected accordingly, and the abutment extractor 1000 can be easily rotated to separate the abutment 6 from the implant 5.

[0041] Please refer to Figures 2 to 3 The utility model also proposes an implant kit 2000, which includes an implant 5, an abutment 6 and an abutment extractor 1000; the implant 5 is formed with a conical mounting groove 51; a part of the structure of the abutment 6 is inserted into the conical mounting groove 51, and is abutted against the side wall of the conical mounting groove 51 to limit the position, the abutment 6 is formed with a through hole 63, and the inner peripheral wall of the through hole 63 is formed with an internal thread; the abutment extractor 1000 includes a wrench fitting part 1 and a support rod 2, the support rod 2 is connected to the wrench fitting part 1, the outer peripheral wall of the support rod 2 is provided with an external thread, and the support rod 2 is screwed to the through hole 63. Since the implant kit 2000 adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0042] In order to stably connect the base 6 and the implant 5, in one embodiment of the present invention, as shown in FIG. Figure 2 As shown, the bottom of the conical installation groove 51 is formed with a thread groove 52, and the through hole 63 includes a through hole 631 and a matching hole 632 arranged from top to bottom and connected, the diameter of the through hole 631 is larger than the diameter of the matching hole 632, and the inner wall of the matching hole 632 is formed with an internal thread. The abutment 6 and the implant 5 can be fixed by a screw rod, and the screw rod includes a cap portion and a rod portion connected to each other, the cap portion is located in the through hole 631, and the rod portion passes through the matching hole 632 and is screwed to the thread groove 52 to fix the abutment 6 and the implant 5.

[0043] Further, in one embodiment of the present invention, Figure 3 As shown, the base 6 includes a base body 61 and a connecting truncated cone 62. The base body 61 and the connecting truncated cone 62 are connected in an arc transition. The connecting truncated cone 62 is inserted into the conical mounting groove 51 and abuts against the side wall of the conical mounting groove 51 to limit the position. The connecting truncated cone 62 itself has a taper, which can better cooperate with the conical mounting groove 51 to form a cold welding effect. The taper of the connecting truncated cone 62 is equal to the taper of the conical mounting groove 51, so that the connecting truncated cone 62 and the side wall of the conical mounting groove 51 can fit tightly, effectively preventing bacteria and other debris from entering the conical mounting groove of the implant 5. In addition, the base body 61 and the connecting truncated cone 62 are connected in an arc transition. The arc segment can provide better stability and adaptability, and can disperse the bite force, thereby reducing the stress on the implant 5.

[0044] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An abutment extractor for removing an abutment, characterized in that: The base is provided with a through hole, and the inner peripheral wall of the through hole is formed with an internal thread, and the base extractor comprises: a wrench fitting; and A support rod is connected to the wrench mating portion, and an outer peripheral wall of the support rod is provided with an external thread, and the external thread is used for threading with the internal thread of the base.

2. The abutment extractor according to claim 1, characterized in that: The abutment extractor further comprises a limiting rod, which is arranged at one end of the support rod away from the wrench fitting portion, and is used for abutting against the implant to limit position.

3. The abutment extractor according to claim 2, characterized in that: A transition surface is formed at a connection between an end surface of the limiting rod away from the supporting rod and an outer side wall of the limiting rod, and the transition surface is an arched surface or an inclined surface.

4. The abutment extractor according to claim 2, characterized in that: The diameter of the limiting rod is smaller than the diameter of the supporting rod.

5. The abutment extractor according to claim 1, characterized in that: The base extractor also includes an extension rod, one end of which is connected to the wrench mating portion, and the other end of which is connected to the support rod.

6. The abutment extractor according to claim 1, characterized in that: A key groove is formed at one end of the wrench fitting portion away from the support rod, and the cross-sectional shape of the key groove is a regular polygon.

7. The abutment extractor according to claim 1, characterized in that: The cross-sectional shape of the end of the wrench fitting portion away from the support rod is a regular polygon.

8. An implant kit, characterized in that: include: An implant, wherein the implant is formed with a tapered mounting groove; A base; a part of the structure of the base is inserted into the conical mounting groove and abuts against the side wall of the conical mounting groove to limit the position, the base is formed with a through hole, and the inner peripheral wall of the through hole is formed with an internal thread; and An abutment extractor, according to any one of claims 1 to 7, wherein the support rod is screwed to the through hole.

9. The implant kit according to claim 8, characterized in that: The through hole comprises a via hole and a matching hole which are arranged from top to bottom and connected, the diameter of the via hole is larger than the diameter of the matching hole, and the inner wall of the matching hole is formed with the internal thread.

10. The implant kit according to claim 8, wherein: The base comprises a base body and a connecting frustum, the base body is connected to the connecting frustum in an arc transition, and the connecting frustum is plugged into a conical mounting groove of the implant.

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