JP2010115261A - Drill guide for implant - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drill guide for an implant, allowing a spacer to be easily inserted into/detached from a hole of a template, and capable of preventing the spacer inserted into the hole from being loosened during the treatment. <P>SOLUTION: The drill guide for the implant is composed of a guide member holder 1 including a guide member guiding part 1a having a locking part, and an insertion part with a large-diameter spherical part at a projecting stick-shaped distal end; a guide member 2 having a spacer part 2ca and a spring locking part 2d to be locked with the locking part when a stopper part 2b abuts to an end face of the guide member holder 1 on the side where a stopper part 2b is slidably inserted as a sliding insertion part 2a is slidably inserted into the guide member guiding part 1a; a hollow stick-shaped grip stick 3 formed in such a state as an opening 3b communicating with the rear end side continued to a groove opening part 3a; and a stick-shaped body 4 inserted from the rear end of the grip stick 3 for fixing the position of the guide member holder 1 by making the distal end abut to the spherical part of the insertion part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a drill guide for an implant that is used for correctly guiding a drill having a different diameter to a place where an implant fixture of a jawbone is to be embedded in dental implant treatment.

  In dental implant treatment, it is most important to drill an implant fixture insertion hole at an accurate position at an appropriate depth in the jawbone of the missing tooth. As a method of accurately drilling a hole for implant fixture insertion in the jawbone, first take a tomographic image of the patient's jawbone and create a model of the jaw ridge on the computer, and determine the fixture insertion direction in advance. A template having a hole in which the fixture insertion direction is defined is created based on data that accurately simulates the completed state of the prosthetic device including the implant fixture, and the implant fixture to be drilled is embedded. There is a method of disposing a dental implant using a flanged dental drill in which a flange for regulating the depth of a hole is formed integrally with the shaft portion (see, for example, Patent Documents 1 and 2).

  In such a method using a template and a dental drill with a flange, since the position and direction of the implant fixture insertion hole are defined by the template, the position of the implant fixture insertion hole may shift, It is possible to prevent a situation where the depth of the char embedding hole is not a desired depth.

  Also, in this method, instead of drilling a hole with the maximum diameter of the implant fixture directly in the jawbone, the fixture insertion hole is changed from a small diameter drill to a gradually larger diameter drill. The template has a hole with the same diameter as the maximum diameter of the implant fixture, so when using a drill with a small diameter, a guide hole for guiding the drill is provided at the center. A cylindrical spacer whose outer diameter matches the inner diameter of the hole of the template is fitted into the hole of the template, and a small diameter drill is led to the place where the jawbone is to be embedded.

  However, in such a method, in order to form the fixture embedding hole, it is necessary to gradually change from a small-diameter drill to a large-diameter drill. It is necessary to replace it many times, and it is also necessary to remove the spacer inserted in the template when implanting the implant fixture, but this work should be done with the template in the mouth. Is very cumbersome and difficult.

  Further, the hole formed in the template has no extra protrusions on the inner surface of the hole so that the implant fixture can be inserted smoothly. For this reason, when inserting a spacer into the template hole, it is difficult to lock or fix the spacer to the template hole. Since it is in a lying state, there is a problem that not only the upper jaw but also the spacer attached to the lower jaw can be easily detached from the template.

Special table 2005-518834 gazette Special table 2007-511275 gazette

  In view of the above problems, the present invention allows the spacer to be easily inserted into and removed from the hole of the template, and does not become complicated even when the spacer is repeatedly replaced. It is an object of the present invention to provide an implant drill guide that can prevent a spacer inserted into a part from falling off and that is easy to use and easy to treat.

  As a result of intensive studies to solve the above-mentioned problems, the present inventors have found that it is difficult to insert and remove a single spacer into the hole of the template. Therefore, an implant in which the spacer (spacer) is attached to the tip of the gripping rod With the drill guide tool, the spacer part at the tip can be easily inserted into or removed from the hole of the template while the gripping bar is gripped by hand, and the spacer part can be removed via the gripped gripping bar. A guide that can be slidably inserted into the guide rod with the spacer protruding from the tip of the gripping rod without causing the spacer to fall out of the hole of the template if pressed against the template hole. If a member holder is attached, the spacer can be easily replaced simply by sliding the guide member into the guide member holder and holding it. If the tip of an implant drill guide made of a rod-like object such as a grasping rod is inserted into a narrow oral cavity to make a hole for implanting an implant fixture, There is a problem that it is difficult to securely insert the spacer portion into the hole portion of the template, but the guide member can be fixed by changing the direction of the guide member holder that is held by sliding insertion. An insertion portion consisting of a rod-shaped portion and a spherical portion is provided on the outer surface of the guide member guide portion into which the member is slidably inserted, and an opening into which the insertion portion is inserted is provided on the distal end side of the gripping rod. If the rod-shaped body is inserted from the end and its tip abuts against the spherical portion of the insertion portion of the guide member holder inserted from the opening of the gripping rod, the guide member is retained. Is fixed in a state where the tip of the rod-shaped body is in contact with the spherical portion having a substantially spherical shape, so that the contact state between the spherical portion and the tip of the rod-shaped body does not change even if the direction of the guide member holder is changed. Therefore, the present invention has been completed by investigating that the direction of the guide member holder can be freely adjusted to fix the position, and that the spacer portion of the guide member can be securely and easily fitted into the hole portion of the template. It was.

That is, the present invention is at least approximately the same diameter as the maximum outer diameter of the implant fixture that is formed in the portion corresponding to the missing tooth portion of the template that is mounted along the jaw ridge including at least the missing tooth portion and is embedded in the jaw bone. A drill guide for implants for maintaining a state in which a hollow cylindrical spacer portion having a guide hole for guiding a drill for drilling an implant fixture insertion hole in a jawbone is fitted in a cylindrical hole portion. Tools,
Larger than the diameter of the rod-shaped portion at the tip of the guide member guide portion having a locking portion near the longitudinal end surface or the longitudinal end portion of the guide surface and the rod-shaped portion protruding from the outer surface of the guide member guide portion. A guide member holder provided with an insertion portion provided with a spherical portion of a diameter;
One side in the longitudinal direction forms a sliding insertion part that is slidably inserted and held along the guide surface of the guide member guide part of the guide member holder, and the other side is adjacent to the sliding insertion part and is a guide member. There is a stopper part that abuts on the end surface of the guide member guide part of the holder that is slid and inserted, and a guide hole that penetrates at a position corresponding to the hole formed in the end opposite to the slide insertion part. A drill guide portion provided with a spacer portion protruding so as to be positioned on the opposite side of the insertion portion of the guide member holder when the sliding insertion portion is slid into the guide member guide portion; And when the stopper is in contact with the longitudinal end surface of the guide member holder, the engaging portion of the guide member holder is engaged by a spring action. A guide member provided with a spring locking portion to be stopped;
A hollow rod with a closed end, the rod-shaped portion of the insertion portion of the guide member holder can be moved to the distal end side, and a groove opening having a width smaller than the diameter of the spherical portion and a rear end side following the groove opening. A holding rod in which the spherical portion of the insertion portion of the guide member holder is inserted into the hollow portion and communicated with the hollow portion, and a holding rod screw portion is formed at the rear end;
When the rod-shaped body screw portion is inserted from the rear end of the gripping rod and screwed into the gripping rod screw portion of the gripping rod, it comes into contact with the spherical portion of the insertion portion of the guide member holder inserted from the opening of the gripping rod. An implant drill guide device comprising a rod-shaped body that moves a spherical portion to a distal end of a hollow portion by a distal end and fixes the position.

  Further, if the engaging part of the guide member holder is a concave part formed in the vicinity of at least one longitudinal end of the guide surface of the guide member guide part, the guide member holder and the guide member depending on the depth of the concave part. It is preferable that the strength with which the guide member is locked can be changed. Further, if the guide member guide portion of the guide member holder is formed in a substantially lip groove shape or a cylindrical shape, the guide member can be reliably slid and inserted.

  The drill guide for an implant according to the present invention is formed at a portion corresponding to the missing tooth portion of the template mounted along the jaw ridge including at least the missing tooth portion, and is the maximum outside of the implant fixture to be embedded in the jaw bone. A hollow cylindrical spacer portion having a guide hole for guiding a drill for drilling an implant fixture insertion hole in the jawbone is held in a cylindrical hole portion having substantially the same diameter as the diameter. An implant drill guide tool for guiding a guide member having a locking portion in the vicinity of a longitudinal end surface or a longitudinal end portion of a guide surface, and projectingly provided on an outer surface of the guide member guide portion A guide member holder provided with an insertion portion provided with a spherical portion having a diameter larger than the diameter of the rod-like portion at the tip of the rod-like portion, and a guide member of the guide member holder on one side in the longitudinal direction A sliding insertion portion is formed that is slid and inserted along the guide surface of the guide portion, and the other side is adjacent to the sliding insertion portion and is inserted into the guide member guide portion of the guide member holder. A stopper part that abuts the end face on the side and a guide hole that penetrates in a position corresponding to the hole drilled in the end opposite to the sliding insertion part, and the sliding insertion part slides on the guide member guide part It forms a drill guide part provided with a spacer part protruding so as to be positioned opposite to the insertion part of the guide member holder when inserted, and the sliding insertion part serves as the guide member guide part A guide member provided with a spring locking portion that is slidably inserted and is locked to the locking portion of the guide member holder by a spring action when the stopper portion comes into contact with the longitudinal end surface of the guide member holder. And a guide member on the tip side of the hollow rod with the tip closed The rod-shaped part of the insertion part of the holding tool is movable, and the opening of the groove part having a width smaller than the diameter of the spherical part and the spherical part of the insertion part of the guide member holder can be inserted into the rear end side following the groove opening part. Is formed in a state of communicating with the hollow portion and a gripping rod screw portion is formed at the rear end, and a rod-like body screw portion is inserted into the gripping rod screw portion of the gripping rod inserted from the rear end of the gripping rod When the screw is screwed, it is composed of a rod-like body that moves the spherical portion to the distal end of the hollow portion by the tip that contacts the spherical portion of the insertion portion of the guide member holder inserted from the opening of the gripping rod and fixes the position. Since the spacer part is attached to the tip of the gripping rod during use, the spacer part at the tip can be easily inserted into or removed from the template hole while holding the gripping bar by hand. Can also be held through the gripping rod If the holder is pressed against the hole of the template, the spacer does not fall out of the hole of the template, and the guide member with the spacer protruding from the end can be slid into the end of the gripping rod. Since the guide member holder is mounted, the spacer can be easily replaced simply by sliding the guide member into the guide member holder and holding it. The tip of the rod-like body inserted from the rear end of the gripping rod is provided with an opening into which the insertion portion composed of a rod-like portion and a spherical portion provided on the outer surface of the guide portion is inserted on the tip end side of the gripping rod Since the position of the guide member holder is fixed in a state where the guide member holder is in contact with the spherical portion of the insertion portion of the guide member holder inserted from the opening of the gripping rod, the spherical shape is maintained even if the direction of the guide member holder is changed. Since the contact state between the rod and the tip of the rod-shaped body does not change, the direction of the guide member holder can be adjusted freely and the position can be fixed, and the spacer portion of the guide member can be securely and easily inserted into the hole of the template. It can be made.

  Further, in the aspect in which the engaging portion of the guide member holder is a concave portion formed in the vicinity of at least one longitudinal end portion of the guide surface of the guide member guide portion, the guide member holder and the guide depend on the depth of the concave portion. It is preferable that the strength with which the member is locked can be changed. Further, when the guide member guide portion of the guide member holder has a substantially lip groove shape or a cylindrical shape, the guide member can be reliably inserted by sliding. It is preferable.

Hereinafter, an implant drill guide according to the present invention will be described in detail with reference to the drawings.
1 is a front view showing an embodiment of an implant drill guide tool according to the present invention, FIG. 2 is a front view showing a state in which a guide member is removed from the implant drill guide tool of FIG. 1, and FIG. FIG. 4 is a front view showing a state in which the guide member holder of the implant drill guide tool in the state is rotated counterclockwise with respect to the paper surface, and FIG. 4 shows the guide member holder of the implant drill guide tool in the state of FIG. FIG. 5 is a perspective view of a guide member holder mounted on the implant drill guide tool of FIG. 1, and FIG. 6 is mounted on the implant drill guide tool of FIG. FIG. 7 is a front view of a rod-shaped body mounted on the implant drill guide tool of FIG. 1, and FIG. 8 is a guide portion mounted on the implant drill guide tool of FIG. FIG. 9 is a plan view of the guide member of FIG. 8, FIG. 10 is a front view of another embodiment of the implant drill guide tool according to the present invention, and FIG. 11 is a plan view of the implant drill guide tool of FIG. FIG. 12 is a perspective view of a guide member holder mounted on the implant drill guide device of FIG. 10, and FIG. 13 is an explanatory view showing a state where the template is mounted in the oral cavity. It is.

  In the drawing, T is a template that is mounted along a jaw ridge including at least a missing tooth portion. This template T is formed at a portion corresponding to the missing tooth portion and is the maximum implant fixture to be embedded in the jaw bone. A cylindrical hole portion Ta having a diameter substantially the same as the outer diameter is formed, and the implant drill guide device according to the present invention guides a drill for drilling an implant fixture insertion hole in the jawbone. It is used to hold the hollow cylindrical spacer portion 2ca having the guide hole to be fitted in the hole portion Ta of the template T.

  Reference numeral 1 denotes a guide member guide portion 1a having a locking portion 1b in the vicinity of a longitudinal end surface or a longitudinal end portion of the guide surface 1aa, and a rod-like portion 1ca projecting on the outer surface of the guide member guide portion 1a. A guide member holder 1 is provided with an insertion portion 1c provided with a spherical portion 1cb having a diameter larger than the diameter of the rod-like portion 1ca at the tip. The guide member guide portion 1a of the guide member holder 1 has, for example, a substantially lip groove shape as shown in FIGS. 1 to 4 or a cylindrical shape as shown in FIG. Is preferred.

  2, one side in the longitudinal direction forms a sliding insertion portion 2a that is slidably inserted along the guide surface 1aa of the guide member guide portion 1a of the guide member holder 1, and the other side is slidably inserted. A stopper portion 2b adjacent to the portion 2a adjacent to the longitudinal end surface of the guide member holder 1 and a guide hole penetrating in a position corresponding to a hole drilled in the end opposite to the sliding insertion portion 2a. When the sliding insertion portion 2a is slid and inserted into the guide member guide portion 1a, a spacer portion 2ca is provided so as to be positioned opposite to the insertion portion 1c of the guide member holder 1. The guide member is held when the slide insertion portion 2a is slidably inserted into the guide member guide portion 1a and the stopper portion 2b comes into contact with the longitudinal end surface of the guide member holder 1. Guide portion provided with a spring locking portion 2d that is locked to the locking portion 1b of the tool 1 by a spring action It is a material. The guide member 2 is provided with a stopper portion 2b so as to stop at a predetermined position when the slide insertion portion 2a is slid and inserted into the guide member guide portion 1a of the guide member holder 1. In order to lock the insertion portion 2a to the guide member holder 1, a spring locking portion 2d is provided. Thus, since the guide member 2 is merely locked to the guide member holder 1 by the spring locking portion 2d, the guide member 2 can be easily removed even when the guide member 2 is detached from the guide member holder 1. The member 2 can be easily replaced. If the locking portion 1b of the guide member holder 1 is a concave portion formed in the vicinity of at least one longitudinal end portion of the guide surface 1aa of the guide member guide portion 1a, the guide member depends on the depth of the concave portion. It is preferable that the strength with which the holder 1 and the guide member 2 are locked can be changed. As the sliding insertion portion 2a of the guide member 2, various members can be used as long as they are non-cylindrical, such as a flat plate as shown in FIG.

  Reference numeral 3 denotes a hollow rod whose tip is closed, and a rod-like portion 1ca of the insertion portion 1c of the guide member holder 1 is movable to the tip side, and a groove opening 3a having a width smaller than the diameter of the spherical portion 1cb and the groove The opening 3b into which the spherical portion 1cb of the insertion portion 1c of the guide member holder 1 can be inserted is communicated with the hollow portion on the rear end side following the opening 3a, and the grip rod screw portion is formed at the rear end. 3c is a gripping rod formed. When the groove opening 3a formed on the distal end side of the gripping rod 3 is formed up to the vicinity of the distal end of the gripping rod 3 as shown in FIG. 6, the guide member holder 1 is three-dimensionally shown in FIG. This is preferable because it can be rotated. In addition, as for the rear end side of the holding | grip stick 3, the part to hold | grip like FIG.

  4 is inserted from the rear end of the gripping rod 3, and when the rod-like body screw portion 4a is screwed into the gripping rod screw portion 3c of the gripping rod 3, the guide member holder 1 inserted from the opening 3b of the gripping rod 3 is inserted. This is a rod-shaped body that moves the spherical portion 1cb to the distal end of the hollow portion and fixes the position by the tip of the insertion portion 1c that contacts the spherical portion 1cb. When the rod-like body screw portion 4a of the rod-like body 4 is a male screw as shown in FIG. 7, although not shown, the grasping rod screw portion 3c of the grasping rod 3 is a female screw that is screwed to it.

  In order to actually use the drill guide for an implant according to the present invention, first, the spherical portion 1cb of the insertion portion 1c of the guide member holder 1 is inserted into the opening 3b of the grasping rod 3, and the rod-shaped body 4 is grasped by the grasping rod. 3 is inserted from the rear end, the tip of the rod-like body 4 is brought into contact with the spherical portion 1cb of the guide member holder 1, and the spherical portion 1cb is moved to the tip of the hollow portion so that the guide member holder 1 is attached to the gripping rod 3. The rod-like body screw portion 4a of the rod-like body 4 may be screwed into the grasping rod screw portion 3c of the grasping rod 3 until the position is fixed.

  At this time, the tip of the rod-shaped body 4 is brought into contact with the spherical portion 1cb of the guide member holder 1, but since the spherical portion 1cb of the guide member holder 1 is substantially spherical, the guide member holder 1 can be used in various ways. Since the contact state between the tip of the rod-like body 4 and the spherical portion 1cb of the guide member holder 1 is always kept constant even if it faces in any direction, it should be firmly fixed regardless of the direction of the guide member holder 1. Can do. For example, the guide member holder 1 is in the state of FIG. 2, the state rotated counterclockwise from the state of FIG. 2 as shown in FIG. 3, or the rod shape of the insertion part 1 c of the guide member holder 1 as shown in FIG. 4. In a state where the center line of the portion 1ca is not adjusted to the right angle with respect to the center line of the grasping rod 3 and is three-dimensionally rotated, etc. If the rod-like body screw portion 4a of the rod-like body 4 is screwed so as to be fixed to the gripping rod 3, the position of the guide member holder 1 can be fixed in various directions.

  The rod-like body 4 and the gripping bar 3 are threadedly engaged with each other. If this is a screw, fine adjustment such as slightly rotating the rod-like body 4 to strengthen or weaken the threaded state. This is because it is easy to do. Further, in FIG. 7, the rod-like body screw portion 4a of the rod-like body 4 is a male screw, and the gripping rod screw portion 3c of the grasping rod 3 is a female screw that is screwed to the male rod and the female screw. The reverse may be possible.

  Next, in order to attach the guide member 2 to the guide member holder 1, for example, the guide member guide 1a of the guide member holder 1 in the state as shown in FIG. The moving insertion portion 2a is inserted and inserted until the stopper portion 2b of the guide member 2 comes into contact with the right end surface of the guide member holder 1 shown in FIG. The guide member 2 is mounted in a state as shown in FIG. 1 when it is engaged with the engagement portion 1b (concave portion) on the left side of the holder 1. By attaching the guide member 2 to the guide member holder 1 in this way, the spacer portion 2ca is positioned on the right side in FIG. 1, but when it is desired to position the spacer portion 2ca on the left side according to the treatment site, FIG. By using a mode in which the locking portions 1b (concave portions) are provided on the left and right as shown in FIG. 4, the spring locking portion 2d side of the guide member 2 is seen on the paper surface of the guide member holder 1 in FIG. By sliding and inserting from the left end, the stopper portion 2b of the guide member 2 is brought into contact with the left end surface of the guide member holder 1, and the spring locking portion 2d of the guide member 2 is moved to the right side of the guide member holder 1. The spacer portion 2ca can be positioned on the left side by engaging with the locking recess 1b. When it is desired to position the spacer portion 2ca on the desired side, the guide member 2 is first slid and inserted into the guide member holder 1, and then the guide member holder 1 is held with respect to the gripping rod 3. You may fix to the holding | grip stick | rod 3, after rotating.

  Another embodiment of the implant drill guide according to the present invention is as shown in FIG. In this embodiment, the guide member guide portion 1a of the guide member holder 1 has a cylindrical shape, and the locking portion 1b of the guide member holder 1 that locks the spring locking portion 2d of the guide member 2 is the above-mentioned. It is not the concave portion as in the embodiment but the end surface in the longitudinal direction of the guide member guide portion 1a. Further, in this embodiment, as shown in FIG. 11, the stopper portion 2b of the guide member 2 is formed to be wider than the width of the sliding insertion portion 2a, and the sliding insertion portion 2a of the guide member 2 is used as the guide member holder 1. When the guide member guide portion 1a is slidably inserted, the stopper portion 2b of the guide member 2 comes into contact with the right end surface of the guide member holder 1 shown in FIG. Is locked to the left end face of the guide member holder 1, and the guide member 2 is mounted in a state as shown in FIG. In this embodiment, since the guide member guide portion 1a has a cylindrical shape, the slide insertion portion 2a of the guide member 2 can be slid and inserted from either the left or right side. Even after being fixed, the spacer portion 2ca of the guide member 2 can be positioned on either the left side or the right side as viewed in the drawing.

  Further, in this embodiment, the insertion portion 1c of the guide member holder 1 is formed not at the center in the longitudinal direction of the guide member holder 1 but at one end side as shown in FIG. Thus, the spacer portion 2ca of the guide member 2 mounted on the guide member holder 1 can be fixed at a position close to the gripping rod 3 or a position farther from the gripping rod 3 as shown in FIG. The distance from the grasping bar 3 can be changed not only in the direction but also in accordance with the treatment site.

  As in each embodiment, in the implant drill guide tool according to the present invention, the direction in which the sliding insertion portion 2a of the guide member 2 is slidably inserted is changed, or the position of the insertion portion 1c of the guide member holder 1 is biased. By doing so, the position of the spacer portion 2ca of the guide member 2 can be changed, and the position of the guide member holder 1 into which the guide member 2 is slidably inserted can be changed and fixed. The direction of the spacer portion 2ca of the member 2 can be easily changed, and various adjustments can be made according to the treatment site in the oral cavity, which is very convenient.

  In order to actually perform an implant treatment using the implant drill guide device according to the present invention, the gripping rod 3 screwed together as described above and the guide member holder fixed to the rod-shaped body 4 are fixed. 1. With the guide member 2 slidably inserted into the holder 1, the holding rod 3, or the holding rod 3 and the rod-shaped body 4 are held by hand and, for example, a template T mounted along a ridge including a missing tooth portion as shown in FIG. The spacer portion 2ca of the guide member 2 is inserted into the hole portion Ta, and a drill mounted on the handpiece or the like is inserted into the guide hole of the spacer portion 2ca to drill the jawbone. At this time, the spacer portion 2ca is integrated with the gripping rod 3 and is firmly pressed by hand, so that it does not fall out of the hole portion Ta of the template T.

  Also, when removing the spacer portion 2ca from the hole portion Ta of the template T after drilling, the conventional single spacer easily causes problems such as dropping into the oral cavity during removal, but the implant drill according to the present invention In the guide tool, since the spacer portion 2ca is integrated with the gripping rod 3 and the like, such a problem does not occur.

  Further, when using drills with different diameters in succession, the treatment location is the same, so there is no need to change the position and direction of the guide member holder 1 fixed in position to the gripping rod 3 in advance, and the guide member holder 1 By simply exchanging the guide member 2 that is slidably inserted into the drill, it is possible to use drills having different sizes.

It is a front view which shows one Example of the drill guide tool for implants which concerns on this invention. It is a front view which shows the state which removed the guide member from the drill guide tool for implants of FIG. It is a front view which shows the state which rotated the guide member holder of the drill guide tool for implants of the state of FIG. 2 counterclockwise with respect to the paper surface. It is a front view which shows the state which rotated the guide member holder of the implant drill guide tool of the state of FIG. 2 three-dimensionally. FIG. 2 is a perspective view of a guide member holder mounted on the implant drill guide device of FIG. 1. It is a front view of the holding | grip stick | rod with which the drill guide tool for implants of FIG. 1 was mounted | worn. It is a front view of the rod-shaped body with which the drill guide tool for implants of FIG. 1 was mounted | worn. It is the front view of the guide member with which the drill guide tool for implants of FIG. 1 was mounted | worn. It is a top view of the guide member of FIG. It is a front view which shows the other Example of the drill guide tool for implants which concerns on this invention. It is a front view of the guide member with which the drill guide tool for implants of Drawing 10 was equipped. It is a perspective view of the guide member holding | maintenance tool with which the drill guide tool for implants of FIG. 10 was mounted | worn. It is explanatory drawing which shows the state with which the template was mounted | worn in the intraoral area.

Explanation of symbols

1 Guide member holder
1a Guide member guide
1aa Information plane
1b Locking part
1c Insertion section
1ca Bar
1cb Spherical part 2 Guide member
2a Sliding insertion part
2b Stopper section
2c Drill guide
2ca Spacer
2d Spring locking part 3 Grip bar
3a Groove opening
3b opening
3c Grip rod screw part 4 Rod body
4a Rod body thread T template
Ta hole

Claims (4)

A cylindrical shape that is formed in a portion corresponding to the missing tooth portion of the template (T) that is mounted along the jaw ridge including at least the missing tooth portion, and is approximately the same diameter as the maximum outer diameter of the implant fixture to be embedded in the jaw bone. A hollow cylindrical spacer part (2ca) having a guide hole for guiding a drill for drilling an implant fixture insertion hole in the jawbone is held in the hole part (Ta) formed of An implant drill guide device,
A guide member guide portion (1a) having a locking portion (1b) in the vicinity of the longitudinal end surface or the longitudinal end portion of the guide surface (1aa), and protruding from the outer surface of the guide member guide portion (1a) A guide member holder (1) provided with an insertion portion (1c) provided with a spherical portion (1cb) having a larger diameter than the diameter of the rod-like portion (1ca) at the tip of the formed rod-like portion (1ca) ,
One side in the longitudinal direction forms a sliding insertion portion (2a) that is slidably inserted along the guide surface (1aa) of the guide member guide portion (1a) of the guide member holder (1). A stopper portion (2b) whose other side is adjacent to the sliding insertion portion (2a) and contacts the end surface of the guide member guide (1a) of the guide member holder (1) on the side where sliding is inserted. A guide hole penetrating in a position corresponding to a hole drilled in an end opposite to the sliding insertion portion (2a), the sliding insertion portion (2a) being the guide member guide portion (1a) A drill guide portion (2c) provided with a spacer portion (2ca) protruding so as to be located on the opposite side of the insertion portion (1c) of the guide member holder (1) when inserted into the guide member ), The sliding insertion portion (2a) is slidably inserted into the guide member guide portion (1a), and the stopper portion (2b) is formed on the longitudinal end surface of the guide member holder (1). The guide member when contacted A guide member (2) provided with a spring locking portion (2d) locked by a spring action on the locking portion (1b) of the holder (1);
A hollow rod with a closed end, on which the rod-like portion (1ca) of the insertion portion (1c) of the guide member holder (1) is movable and has a width smaller than the diameter of the spherical portion (1cb) An opening (3b) into which the spherical portion (1cb) of the insertion portion (1c) of the guide member holder (1) can be inserted on the rear end side following the opening (3a) and the groove opening (3a); Is formed in a state communicating with the hollow portion, and a gripping rod (3) in which a gripping rod screw portion (3c) is formed at the rear end;
When the rod-like body screw portion (4a) is inserted from the rear end of the grasping rod (3) and screwed into the grasping rod screw portion (3c) of the grasping rod (3), the opening of the grasping rod (3) is opened. The spherical portion (1cb) is moved to the distal end of the hollow portion and fixed in position by the tip of the guide member holder (1) inserted from the portion (3b) with the tip of the insertion portion (1c) contacting the spherical portion (1cb). An implant drill guide device comprising a rod-like body (4).   The locking portion (1b) of the guide member holder (1) is a concave portion formed in the vicinity of at least one longitudinal end portion of the guide surface (1aa) of the guide member guide portion (1a). The implant drill guide according to claim.   The drill guide for an implant according to claim 1 or 2, wherein the guide member guide (1a) of the guide member holder (1) has a substantially lip groove shape.   The implant drill guide tool according to claim 1 or 2, wherein the guide member guide portion (1a) of the guide member holder (1) has a cylindrical shape.

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