TWM472511U - Angle adjustment mechanism of drilling positioning auxiliary device for dental implant - Google Patents

Description

Angle adjustment mechanism for drilling positioning aid of artificial implant

The present invention relates to an angle adjustment mechanism, and more particularly to an angle adjustment mechanism for a drilling positioning aid for artificial implants.

The so-called dental implant surgery is to drill a hole down the gum in the patient's missing tooth, and then the pre-made artificial tooth root is implanted in the hole to fix it. Therefore, the accuracy of the drilling position and its angle will affect the quality of the dental implant relatively.

The applicant of the case had previously applied for the patent application (hereinafter referred to as the previous case) of No. 99204148 "Drilling Positioning Aid for Porous Artificial Implants" to ensure the accurate position and angle of the implant. The drilling positioning aid provided in the preceding paragraph comprises: a main arm unit having an arm body and a first end portion and a second end portion at opposite ends of the arm body, the first end portion being vertically pivoted Connected to a reference shaft; an extension arm unit having a first coupling head, a first connecting rod and a second connecting rod disposed in parallel, and a second connecting head, the first connecting head being vertically pivoted by a connecting shaft The first end of the main arm unit and the second end of the second connecting rod are respectively pivotally disposed on the first connecting head and the second connecting head by a tip body, and the second connecting head is respectively Outer end A drill guide having a drill guide hole. The first link has an angle adjusting mechanism, comprising a first adjusting rod and a second adjusting rod constituting the first connecting rod, a sleeve covering the two adjusting rods, and a forcing the sleeve through the sleeve Two adjustment rods close to the locking bolts. According to the adjustment of the overall length of the mechanism, the position and angle of the drill guide hole of the extension arm unit to the implant hole can be relatively adjusted to guide a drill bit to accurately position the implant hole through the drill guide hole.

However, in the previous case, the straight-locking locking bolts were easily loosened and clearly occupied the straight space in the patient's mouth.

The invention provides an angle adjusting mechanism of a drilling positioning aid for artificial dental implants, which is not loose and reduces its straight space.

According to one aspect of the present invention, an angle adjustment mechanism for a drilling positioning aid of an artificial dental implant is provided. The drilling positioning aid includes: a main arm unit having an arm body and an opposite end portion of the arm body a first end portion and a second end portion, the first end portion is vertically pivotally connected with a reference shaft; and an extending arm unit having a first connecting head, a first connecting rod and a second connecting rod disposed in parallel And a second connecting head, the first connecting head is vertically pivoted to the second end of the main arm unit by a connecting shaft, the first connecting rod has a first outer end portion and a second outer portion at the opposite end portions The first end body and the second tip body are respectively pivotally disposed on the first joint head and the second joint head, and the outer ends of the second link are a third tip body and a fourth tip body Separatingly disposed on the first joint and the second joint, and an outer end of the second joint is provided with a drill The guiding portion has a drill guiding hole. The first link has an angle adjustment mechanism, and the angle adjustment mechanism includes: a first adjustment rod forming a portion of the first link, the first adjustment rod having a first rod and the first rod a first outer end portion of the opposite end portion and a first inner end portion; a second adjusting rod forming a portion of the first connecting rod, the second adjusting rod having a second rod body and the second rod portion a second outer end portion of the opposite end portion of the body and a second inner end portion, the second inner end portion having an annular clamping portion that is sleeved on the first inner end portion of the first adjusting rod, and the second adjusting rod The second rod body has an external thread portion; and a fixing ring is provided with an internal thread portion that is adjustably screwed to the external thread portion of the second adjusting rod, and the fixing ring is adjustably sleeved Ring jaws. According to the adjustment length adjusting mechanism, the overall length of the first adjusting rod and the second adjusting rod of the second connecting rod can adjust the position and angle of the drill guiding portion relatively, and the angle adjusting mechanism and the fixing ring system axial direction thereof It is located on the second connecting rod and does not loosen and does not occupy the straight space of the drilling positioning aid.

According to an embodiment of the present invention, the annular nip portion has a plurality of clips surrounded by an annular shape, the inner circumference of the plurality of clips forming an annular nip, and each of the adjacent clips has a slit therebetween . Accordingly, the annular nip portion is made to have an elasticity of the outer lining.

According to an embodiment of the present invention, the first rod of the first adjusting rod is spaced apart along the longitudinal direction thereof by a plurality of concave ring grooves, and the clips of the annular clamping portion of the second adjusting rod are located on the inner wall of the jaw Each is provided with an inner hook body, and the inner hook body is detachably hooked with the concave ring groove. Accordingly, the firmness of the bond between the first adjustment rod and the second adjustment rod is improved.

According to an embodiment of the present invention, the end edge outer wall ring of the first inner end of the first adjustment rod is provided with a barb body. The annular clip portion for preventing the second adjustment rod is detached from the first inner end portion of the first adjustment rod.

100‧‧‧ main arm unit

110‧‧‧First end

120‧‧‧second end

130‧‧‧Body

200‧‧‧Extension arm unit

210‧‧‧First link

220‧‧‧first connecting rod

230‧‧‧second link

240‧‧‧Second link

241‧‧‧Outer end

251‧‧‧First body

252‧‧‧second body

253‧‧‧ Third body

254‧‧‧fourth body

260‧‧‧Drill guide

261‧‧‧Drill guide hole

300‧‧‧Angle adjustment mechanism

310‧‧‧First adjustment rod

311‧‧‧First body

312‧‧‧ first outer end

313‧‧‧First inner end

314‧‧‧ concave ring groove

315‧‧‧Barbs

320‧‧‧Second adjustment lever

321‧‧‧Second body

322‧‧‧Second outer end

323‧‧‧second inner end

324‧‧‧ ring jaw

325‧‧‧ Clips

326‧‧‧ ring jaw

327‧‧‧ slit

328‧‧‧hook body

329‧‧‧External thread

330‧‧‧Fixed ring

331‧‧‧Threaded Department

400‧‧‧reference axis

500‧‧‧Connected shaft

600‧‧‧ drill bit

FIG. 1 is an external view showing a drilling positioning aid provided with an artificial implant of an angle adjusting mechanism according to an embodiment of the present invention.

Fig. 2 is an exploded view showing the drilling positioning aid of the artificial implant shown in Fig. 1.

Fig. 3 is an exploded view showing another perspective of the angle adjusting mechanism of the drilling positioning aid of the artificial implant shown in Fig. 2.

Fig. 4 is a cross-sectional view showing the main part of the drilling positioning aid of the artificial implant shown in Fig. 1.

Fig. 5 is a schematic view showing the adjustment operation of the angle adjusting mechanism of the drilling positioning aid of the artificial implant shown in Fig. 4.

Fig. 6 is a view showing the locking mechanism of the angle adjusting mechanism of the drilling positioning aid of the artificial implant shown in Fig. 4.

Fig. 7 is a schematic view showing the operation of the drilling positioning aid of the artificial implant shown in Fig. 4.

Fig. 8 is a schematic view showing still another operation of the drilling positioning aid of the artificial implant shown in Fig. 4.

The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of embodiments with reference to the drawings.

Please refer to FIG. 1 to FIG. 8 , which illustrate the structure of a drilling positioning aid provided with an artificial implant of an angle adjusting mechanism according to an embodiment of the present invention. The drilling positioning aid includes a main arm unit 100, an extension arm unit 200, a reference shaft 400 and a connecting shaft 500.

The main arm unit 100 has an arm body 130 and a first end portion 110 and a second end portion 120 at opposite ends of the arm body. The first end portion 110 is vertically pivotally connected to the reference shaft 400. The reference shaft 400 is configured to insert a reference hole 400 into the first implant after drilling a first implant hole (not shown) on the patient's gum bed. Holes are used as a reference for positioning and support.

An extension arm unit 200 has a first connector 210, a first link 220 and a second link 230 disposed in parallel, and a second connector 240. The first joint head 210 is vertically pivoted to the second end portion 120 of the main arm unit 100 by a joint shaft 500. The first connecting rod 220 has a first outer end portion 312 and a second outer end portion 322 at opposite ends, and is pivotally disposed on the first joint head 210 by a first tip body 251 and a second tip body 252 respectively. And a second joint 240. The two outer ends of the second link 230 are respectively pivotally disposed on the first joint head 210 and the second joint head 240 by a third tip body 253 and a fourth tip body 254. An outer end portion 241 of the second joint 240 is provided with a drill guide 260 having a drill guide hole 261 for guiding the drill bit 600. The first connector 210, the first link 220, the second link 230, and the second connector 240 form a four-link linkage mechanism, and cooperate with the main arm unit 100 and the first link. The head 210 has the rotatability of the reference axis 400 and the connecting shaft 500 as axes, and the position of the drill guide 260 can be adjusted accordingly (see FIG. 7). The first link 220 has an angle adjustment mechanism that adjusts the length of the first link 220 to adjust the angle of the drill guide 260 (see Figure 8).

The angle adjusting mechanism 300 according to an embodiment of the present invention includes a first adjusting rod 310 and a second adjusting rod 320 forming the first link 220, and a fixing ring 330.

The first adjustment rod 310 forms a portion of the first link 220. The first adjusting rod 310 has a first rod body 311 and a first outer end portion 312 and a first inner end portion 313 at opposite ends of the first rod body. The first rod body 311 of the first adjusting rod 310 is spaced apart from the longitudinal direction thereof by a plurality of concave ring grooves 314, and the outer edge of the first inner end portion 313 of the first adjusting rod 310 is provided with a barb body 315.

The second adjustment rod 320 forms a portion of the first link 220. The second adjusting rod 320 has a second rod body 321 and a second outer end portion 322 and a second inner end portion 323 at opposite ends of the second rod body. The second inner end portion 323 has an annular clamping portion 324 having a plurality of clips 325 surrounded by a ring. The inner walls of each clip are respectively provided with an inner hook body 328, and the inner circumference of the plurality of clips forms a ring shape. The jaws 326 have a slit 327 between each adjacent clip. Therefore, the annular jaw portion 324 forms an elastically openable jaw structure. The second adjusting rod 320 is sleeved on the first inner end portion 313 of the first adjusting rod 310 by the annular clamping portion 324 , and can be hooked to the concave ring of the first adjusting rod 310 by the inner hook body 328 of the clip 325 . Slot 314. First adjustment rod 310 The barbs 315 prevent the inner hooks 328 from being detached outwardly, thereby preventing the annular nip portion 324 of the second adjustment rod 320 from being detached from the first inner end portion 313 of the first adjustment rod 310. In addition, the second rod body 321 of the second adjusting rod 320 has an external thread portion 329 for coupling with the fixing ring 330.

The fixing ring 330 is provided with an internal thread portion 331 which is adjustably screwed to the external thread portion 329 of the second adjusting rod 320, and the fixing ring 330 adjustably covers the annular clamping portion 324. Referring to FIG. 5 together, when the fixing ring 330 is loosened so that the fixing ring 330 releases the covering constraint on the annular clamping portion 324 of the second adjusting rod 320, the inner hook body 328 of the annular clamping portion 524 is released. For the hooking relationship of the concave ring groove 314 of the first adjusting rod 310, the length between the first adjusting rod 310 and the second adjusting rod 320 can be adjusted by telescopic adjustment, and the whole of the first connecting rod 220 is adjusted accordingly. The length and the angle of the second joint 240 and its drill guide 260 are relatively adjusted (as shown in Fig. 8). Referring to FIG. 6 together, when the first adjustment lever 310 and the second adjustment lever 320 are adjusted to the desired length position such that the inner hook body 328 of the annular jaw portion 324 corresponds to the concave ring groove 314 in the new position, The fixing ring 330 can be tightened, so that the fixing ring 330 is sleeved on the annular clamping portion 324, and the inner hook body 328 of the annular clamping portion 324 is forced to hook into the concave ring groove 314, so that the first adjusting rod 310 and the first The two adjustment rods 320 cannot move relative to each other while maintaining the adjusted length and angle.

According to the angle adjusting mechanism of the drilling positioning aid of the artificial implant according to the first embodiment of the present invention, the position and angle of the drill guiding portion can be conveniently adjusted, and the angle adjusting mechanism and the fixing ring system are axially disposed at the Two connecting rods, not loose, and will not occupy the straightness of the drilling positioning aid To the space.

Although the present invention is disclosed by the above embodiments, it is not intended to limit the present invention, and the skilled person can understand various modifications and refinements without departing from the spirit and scope of the present invention. It is subject to the definition of the scope of the patent application attached.

100‧‧‧ main arm unit

110‧‧‧First end

120‧‧‧second end

130‧‧‧Body

200‧‧‧Extension arm unit

210‧‧‧First link

220‧‧‧first connecting rod

230‧‧‧second link

240‧‧‧Second link

241‧‧‧Outer end

251‧‧‧First body

252‧‧‧second body

253‧‧‧ Third body

254‧‧‧fourth body

260‧‧‧Drill guide

300‧‧‧Angle adjustment mechanism

310‧‧‧First adjustment rod

320‧‧‧Second adjustment lever

330‧‧‧Fixed ring

400‧‧‧reference axis

500‧‧‧Connected shaft

Claims (4)

An angle adjusting mechanism for a drilling positioning aid of an artificial dental implant, the drilling positioning aid comprising: a main arm unit having an arm body and a first end portion at an opposite end of the arm body and a first a second end portion, the first end portion is vertically pivotally connected with a reference shaft; an extension arm unit having a first connecting head, a first connecting rod and a second connecting rod disposed in parallel, and a second connecting portion The first connecting head is vertically pivoted to the second end of the main arm unit by a connecting shaft. The first connecting rod has a first outer end portion and a second outer end portion at opposite ends. The first outer end portion and the second outer end portion are respectively pivotally disposed on the first joint head and the second joint head, and the outer ends of the second link are respectively The first joint head and the second joint head are respectively disposed on the first joint head and the second joint head, and an outer end portion of the second joint head is provided with a drill guide portion, and the drill guide portion has a drill guiding hole, the first link has an angle adjusting mechanism, wherein the angle adjusting mechanism comprises: An adjustment rod forming a portion of the first link, the first adjustment rod having a first rod body and the first outer end portion and a first inner end at opposite ends of the first rod body a second adjusting rod forming a portion of the first connecting rod, the second adjusting rod having a second rod body and the second outer end portion at an opposite end of the second rod body and a a second inner end portion having an annular nip portion, the annular nip portion being sleeved on the first inner end portion of the first adjusting rod, and the second rod portion of the second adjusting rod An externally threaded portion; and a fixing ring is provided with an internal threaded portion that is adjustably screwed to the externally threaded portion of the second adjustment rod, and the fixing ring adjustably covers the ring Shaped mouth. The angle adjusting mechanism of the drilling positioning aid of the artificial implant according to claim 1, wherein the annular jaw portion has a plurality of clips surrounded by an annular shape, and the inner circumference of the plurality of clips forms an annular jaw And each adjacent clip has a slit between each. The angle adjusting mechanism of the drilling positioning aid of the artificial implant according to claim 2, wherein the first rod of the first adjusting rod is provided with a plurality of concave ring grooves along the length direction thereof, and the second adjusting rod Each of the clips of the annular nip portion is provided with an inner hook body on the inner wall of the nip, and the inner hook body is detachably hooked with the concave ring groove. The angle adjusting mechanism of the pupil positioning aid of the artificial implant according to claim 3, wherein the end edge outer wall ring of the first inner end of the first adjusting rod is provided with a barb body.