Check-direction pin and guide tap drill kit for implanting a fixture of implant

Abstract

A direction checking pin and a guide tap drill kit for insertion of a fixture for an implant includes an endosseous fixing guide, a direction checking pin body and a guide tap drill. The endosseous fixing guide and the direction checking pin body are combined and then inserted into an already-formed insertion hole and only the direction checking pin body is removed after checking a direction of the insertion hole, and the guide tap drill is inserted to the endosseous fixing guide remaining in the insertion hole and then rotated so as to enter into the insertion hole such that a screw thread is formed in accordance with the direction of the insertion hole at an inner wall of the insertion hole by the tap drill.

Claims

1. A direction checking pin and a guide tap drill kit for insertion of a fixture for a dental implant, comprising: an endosseous fixing guide (10); a direction checking pin body (20); and a guide tap drill (30), wherein the endosseous fixing guide (10) and the direction checking pin body (20) are configured to be combined and then inserted into an already-formed insertion hole in an alveolar bone and only the direction checking pin body (20) is removed after checking a direction of the insertion hole, and the guide tap drill (30) configured to be inserted on the endosseous fixing guide (10) remaining in the insertion hole and then rotated so as to enter into the insertion hole such that a screw thread is formed in accordance with the direction of the insertion hole at an inner wall of the insertion hole by the guide tap drill (30).

2. The direction checking pin and the guide tap drill kit for insertion of the dental implant fixture of claim 1, wherein the endosseous fixing guide (10) comprises a fixing head portion (11) that is configured to contact a bottom surface of the insertion hole and a guide rod (12) that extends upward from the fixing head portion (11).

3. The direction checking pin and the guide tap drill kit for insertion of the dental implant fixture of claim 2, wherein the direction checking pin body (20) comprises an endosseous insertion portion (20a) insertable into the insertion hole and an exposure portion (20b) that is configured to be disposed at the outside of the insertion hole to indicate a direction of the insertion hole, and the direction checking pin body (20) has a hole (21) that is penetrating along a length direction inside the direction checking pin body (20) or is concave to a predetermined point and thus other parts of the endosseous fixing guide (10), excluding the fixing head portion (11), are insertable into the hole (21).

4. The direction checking pin and the guide tap kit for insertion of the dental implant fixture of claim 2, wherein the guide tap drill (30) comprises a blade portion (31) where screw threads are formed at an exterior diameter and a drill rod (32) extending upwards from the blade portion (31).

5. The direction checking pin and the guide tap drill kit for insertion of the dental implant fixture of claim 3, wherein an insertion hole (30a) of the guide tap drill into which the endosseous fixing guide (10) is insertable is formed in the guide tap drill (30), and a diameter (C) of the insertion hole (30a) of the guide tap drill is the same as a diameter (B) of the hole (21) of the direction checking pin body (20), while an exterior diameter (A) of the guide rod of the endosseous fixing guide (10) is the same as or slightly smaller than the diameter (B) of the hole of the direction checking pin body and the diameter (C) of the insertion hole (30a) of the guide tap drill (30).

6. The direction checking pin and the guide tap drill kit for insertion of the dental implant fixture of claim 4, wherein the blade portion (31) includes a bone cutting portion (31a) configured to cut the alveolar bone and an entry direction maintaining portion (31b) that maintains an entry direction.

Description

DESCRIPTION OF THE DRAWINGS

(1) FIG. 1A shows a direction checking pin and a direction checking pin body of a guide tap drill kit for insertion of an implant fixture according to the present invention.

(2) FIG. 1B is provided for description of an exposure portion 20b of the direction checking pin for insertion of the implant fixture and the direction checking pin body of the guide tap drill kit according to the present invention.

(3) FIG. 2 is provided for additional description of the direction checking pin for inserting the implant fixture and the direction checking pin body of the guide tap drill kit according to the present invention.

(4) FIG. 3 exemplarily shows a process for carrying out implantation by using the direction checking pin for insertion of the implant fixture and the direction checking pin body of the guide tap drill kit according to the present invention.

(5) FIG. 4A is an enlarged view of a case that the entire blade portion of the tap drill is a bone cutting portion in the direction checking pin and the guide tap drill kit for insertion of the implant fixture according to the present invention, and FIG. 4B is an enlarged view of a case that a bone cutting portion is partially formed in the blade portion of the tap drill.

(6) FIG. 5 is an enlarged view of a blade portion of a commonly used tap drill compared to the present invention.

(7) FIG. 6 is additionally provided for description of a problem of a conventional art.

MODE FOR INVENTION

(8) Terms or words used in the specification and claims should not be limited and construed as common or dictionary meanings, and should be construed as meanings and concepts according to the technical spirit of the present invention based on the principle that the inventor can appropriately define the concept of each term for describing the invention in the best way.

(9) The exemplary embodiment described in the present disclosure and the configuration illustrated in the drawings is merely the most preferred embodiment of the present invention, rather than representing all the technical concepts of the present invention, so the present invention is meant to cover all modifications, similarities, and alternatives which are included in the spirit and scope of the present invention at the time of filing of the present invention.

(10) It should be noted that the present invention is not illustrated or is not specifically described with respect to matters not required to reveal the substance of the present invention, that is, a known configuration that can be easily added by a person skilled in the art in advance of describing the present invention with reference to the accompanying drawings.

(11) The present invention relates to a direction checking pin and a guide tap drill kit for insertion of an implant fixture.

(12) Specifically, the present invention relates to a device that forms a female screw in a direction of formation of an insertion hole, which has been already formed, when the female screw is formed at a wall to guide an implant direction of a fixture in the insertion hole by using a tap drill.

(13) Conventionally, an insertion hole for insertion of a fixture is manually formed, and thus even a well-skilled operator (doctor) could not avoid occurrence of damage to a peripheral alveolar bone of the insertion hole when he carries out fixture insertion because an error occurs between a formation direction of the insertion hole and an insertion direction of the fixture.

(14) Accordingly, the present invention relates to a package kit for fixture insertion for an implant by forming an insertion hole according to the intention of the operator and forming a female screw while precisely matching a formation direction of the insertion hole, thereby improving accuracy in an insertion direction of the fixture.

(15) Hereinafter, a direction checking pin and guide tap drill kit for insertion of an implant fixture according to the present invention will be described with reference to the accompanying drawings.

(16) FIG. 1A shows a direction checking pin and a guide tap drill kit for insertion of an implant fixture according to the present invention, and shows the direction checking pin and a direction checking pin body of the guide tap drill kit for insertion of the implant fixture according to the present invention.

(17) Referring to FIG. 1A,

(18) the present invention is formed of a package kit that includes an endosseous fixing guide 10, a direction checking pin body 20, and a tap drill 30.

(19) First, the endosseous fixing guide 10 includes a fixing head portion 11 that contacts a bottom surface of implant bone and a guide rod 12 that extends to the upward of the fixing head portion 11.

(20) Next, after the direction checking pin body 20 is combined with the endosseous fixing guide 10 and then inserted into the insertion hole, the direction checking pin body 20 checks a direction and then is separated from the endosseous fixing guide 10 such that only the direction checking pin body 20 can be removed from the alveolar bone.

(21) For this purpose, an insertion hole 21 is formed in the direction checking pin body 20 while penetrating the direction checking pin body 20 in a length direction (refer to (b) of FIG. 1B) or is concave to a predetermined point (refer to (a) of FIG. 1B), and thus other portions of the endosseous fixing guide 10, excluding the fixing head portion 11, can be inserted therein.

(22) A shape of a portion inserted into a bone (hereinafter referred to as an in-bone insertion portion 20a of the direction checking pin body 20, referring to (a) and (b) of FIG. 1B, is the same as the shape of the insertion hole, and thus an exterior shape that is straightly formed from the top side toward a lower direction and then inclined from a predetermined point can be formed.

(23) However, this is not restrictive, and the entire endosseous insertion portion 20a may be inclined as shown in (c) of FIG. 1B, an inclined portion and a straight line portion may be repeatedly shown in (d), a straight line portion and an inclined portion may be repeatedly shown in (e) be straight lined, and the entire exterior shape may be straight lined as shown in (f).

(24) In addition, as shown in (a), (b), and (c) of FIG. 1B, the exposure portion may be larger than or smaller than the endosseous insertion portion 20a, or may be the same size as the endosseous insertion portion 20a.

(25) The tap drill 30 is combined to the endosseous fixing guide 10 that is separated from the direction checking pin body 20 and forms a screw thread at an inner wall of the insertion hole by performing tap drilling.

(26) Such a tap drill 30 includes a blade portion 31 of which a screw thread is formed at an exterior diameter thereof, a drill rod 32 extended to an upper side of the blade portion 31, and an insertion hole 30a through which the endosseous fixing guide 10 is inserted, and bone cutting portions 31a and an entering direction maintaining portion 31b are formed in the blade portion 31.

(27) In this case, the insertion hole 30a formed in the tap drill 30 may have a diameter C, which is the same as a diameter B of the insertion hole 21 of the direction checking pin body 20, such that the tap drill 30 can be inserted into the guide rod 12 of the endosseous fixing guide 10.

(28) In this case, an exterior diameter A of a rod portion of the endosseous fixing guide 10 may be smaller than the diameter B of the insertion hole 21 of the direction checking pin body 20 and the diameter C of the insertion hole 30a of the tap drill 30.

(29) This will be described with reference to FIG. 2.

(30) FIG. 2 is provided for additional description of the direction checking pin and the guide tap drill kit for inserting the implant fixture according to the present invention.

(31) An operator fits the insertion hole 30a of the tap drill 30 to the endosseous fixing guide 10 and maintains a direction to insert the tap drill 30 into the insertion hole insertion hole 30a while rotating the tap drill 30.

(32) In this case, the insertion hole 30a included in the tap drill 30 may or may not be penetrated.

(33) In addition, depending on designs, a flexible material such as silicon, which is harmless to a human body, may be formed with a stacked structure at the end of the tap drill 30 for the purpose of alleviating pain of a patient. Thus, when the tap drill 30 touches the endosseous fixing guide 10, less vibration is generated, thereby reducing the patient's pain.

(34) Meanwhile, depending on another design condition, a female screw thread or a male screw thread is formed at a lower exterior surface of the guide rod 12 of the endosseous fixing guide 10, a female screw thread or a male screw thread is formed at a lower interior surface of the insertion hole 30a of the tap drill 30, and thus when the tap drill 30 is completely inserted into the endosseous fixing guide 10, the tap drill 30 and the endosseous fixing guide 10 are simultaneously combined.

(35) Accordingly, it is advantageous because when the tap drill 30 is removed from the insertion hole, the endosseous fixing guide 10 can be removed together therewith.

(36) In addition, referring to FIG. 2, the exterior diameter A of the guide rod 12 of the endosseous fixing guide 10, the interior diameter B of the insertion hole 21 of the pin body 20, and the interior diameter C of the insertion hole 30a of the tap drill 30 are shown.

(37) In this case, A is set to be smaller than or equal to B such that the guide rod 12 of the endosseous fixing guide 10 can be smoothly inserted into the insertion hole 21.

(38) In addition, A is set to be smaller than C, and thus the endosseous fixing guide 10 can be smoothly inserted into the insertion hole 30a of the guide rod 12.

(39) With such a structure, the fixing head portion 11 of the endosseous fixing guide 10 may have a diameter that is larger than a diameter of the end of the direction checking pin body 20, and thus, when the endosseous fixing guide 10 is inserted into the insertion hole, the fixing head portion 11 is forcedly fitted by using elasticity of the alveolar bone and, in this chase, when the direction checking pin body 20 is separated from the endosseous fixing guide 10, the separation can be easily carried out without causing a direction change of the endosseous fixing guide 10.

(40) Now, the blade portion 31 will be described with reference to FIG. 4A and FIG. 4B.

(41) FIG. 4A and FIG. 4B are enlarged view of the direction checking pin for inserting of the implant fixture and the blade portion of the tap drill in the guide tap drill kit according to the present invention.

(42) Referring to FIG. 4A and FIG. 4B, the upper side of each drawing is a perspective view of the blade portion 31, and the lower side of each drawing illustrates the tap drill 30 viewed from an end direction where the blade portion 31 is formed. Referring to the lower side of the drawing, the blade portion 31 may be provided in the shape of a pinwheel.

(43) Referring to FIG. 4A and FIG. 4B, the blade portion 31 of the tap drill 30 will now be described in detail.

(44) As shown in FIG. 4, the blade portion 31 has a shape in which the diameter of the screw increases from the lower side to the upper side. In this case, screw are formed from the initial starting screw point, and then a screw is formed again at a predetermined point with an increased width and another screw is formed at another point with a more increased width, and such a process is repeated.

(45) In this case, an area where the screw is formed becomes a bone cutting portion 31a where cutting blades are formed to cut the alveolar bone, and other areas become an entry direction maintaining portion 31b that helps the bone cutting portion 31a to be inserted into the insertion hole along a constant direction.

(46) In such a structure, a boundary of an entry direction maintaining portion 31b at an inner side of a bone cutting portion 31a at an n-th layer should have a larger diameter than the outermost end of a bone cutting portion 31a at an (n−1)th layer in the blade portion 31.

(47) This is because when the bone cutting portion 31a of the upper layer again passes the bone cutting portion 31a that the upper layer has passed, the patient's pain is increased, and a cut portion is cut again so that the screw thread for fixture the implant may not correctly placed.

(48) Thus, the bone cutting portion 31a in the lower layer does not again pass a place that the bone cutting portion 31a in the upper layer passed, only the entry direction maintaining portion 31b in the upper layer passes an area of the alveolar bone, cut by the lower bone cutting portion 31, and the bone cutting portion 31a in the upper layer should be used for the purpose of widening a cutting portion.

(49) Meanwhile, as shown in FIG. 4, the insertion hole 30a is formed in the tap drill 30 and the insertion hole 30a is fully hollow from one end to the opposite end such that remnants of the alveolar bone and blood generated during the cutting operation can be discharged to the outside without being left in the insertion hole.

(50) However, depending on design conditions, groove portions may be formed at regular intervals along an external circumference of the blade portion 31 of the tap drill 30. Such a screw thread structure enables the screw thread to be easily formed at an inner wall of the insertion hole, and the screw thread can be easily removed from the insertion hole by turning the tap drill 30 in the opposite direction.

(51) Hereinafter, an implant fixture inserting process carried out by using the above-described direction checking pin and the guide tap drill kit for inserting the implant fixture will be described.

(52) FIG. 3 exemplarily illustrates a process for carrying out an implant by using the direction checking pin and the guide tap drill kit for insertion of an implant fixture according to the present invention.

(53) Referring to FIG. 2 and FIG. 3,

(54) {circle around (1)} an insertion hole is formed at an alveolar bone from which a tooth is removed. In this case, the insertion hole is formed by using a conventional implant drill, and therefore no further detailed description will be provided.

(55) {circle around (2)} The endosseous fixing guide 10 and the direction checking pin body 20 are combined and then inserted into the insertion hole, and then pressure is slightly applied thereto.

(56) {circle around (3)} After checking the direction of the insertion hole, only the direction checking pin body 20 is separated from the insertion hole such that only the endosseous fixing guide 10 remains in the insertion hole.

(57) {circle around (4)} The insertion hole 30a of the tap drill 30 is inserted into the endosseous fixing guide 10 and then rotated to enter into the endosseous fixing guide 10, and then a screw thread is formed at an inner wall of the insertion hole. In this case, the tap drilling is guided by the endosseous fixing guide 10 and thus the tap dripping can be easily carried out in accordance with a direction of the insertion hole formed according to the intention of the operator or in the direction in which the insertion hole is formed.

(58) {circle around (5)} The tap drill 30 and the endosseous fixing guide 10 are removed from the insertion hole.

(59) {circle around (6)} The fixture is implanted by forming a screw thread in the female screw formed in the inner wall of the insertion hole.

(60) It is apparent that the present invention is not limited to the configuration of the drawings, as described above with reference to the drawings, only the main points of the present invention are described, and various designs can be made within the technical scope thereof.