TWI681760B - Implant device - Google Patents

Abstract

An implant device includes an implant with a threaded portion and a drilling portion and a positioning hole respectively formed at two ends of the implant. There are multiple pores formed on a surface portion of the implant. Each pore has a peripheral wall. An end edge is formed at a border where the peripheral wall and the surface portion of the implant join. Adjacent end edges and peripheral walls of the adjacent pores are connected to cause the adjacent pores to communicate with each other, thereby allowing a plurality of communicating channels to be formed. When the implant device is fastened to a part requiring growth of cells such as a bone, cells derived from the bone are quickly attached to the end edges and enter the channels to attain a smooth adhesion and proliferation, and the proliferated cells climb between the pores and channels to link together and hold the implant in position firmly. Thus, the combination between the implant and the bone is promoted, and the convalescence period of the target part is shortened.

Description

Implant

The invention relates to an implant, in particular to an implant that helps cell proliferation and improves the healing speed.

The use of implants is very extensive, especially in the field of dentistry and orthopedics. The following is only an example of the use of dental implants in the dental field, that is, the use of metal artificial implants in the alveolar bone of the oral cavity is the current For the common medical behaviors of tooth defects, after the implant is implanted into the alveolar bone, the process of combining the bone cells derived from the alveolar bone with the implant is required to achieve the effect of osseointegration; Alveolar bone currently has a porous structure on the surface of the implant, in order to allow bone cells to attach to the porous structure to combine with the implant, but because of the formation of traditional holes, it is easy to have problems of size, depth, and uneven spacing , Which is not conducive to the combination of bone cells derived from the alveolar bone and the implant, that is, the size of the initial cell may be too small. It is usually necessary to wait for the cell to grow larger than the size of the hole before the cell can extend outward. Links are formed between these holes, but this bone integration process takes a long time, resulting in a longer healing time of bone tissue, which still needs to be improved.

Therefore, the object of the present invention is to provide an implant material that allows cells to quickly and smoothly attach to the implant, so as to enhance the growth ability of the cell, not only to achieve a stable combination between the implant and the lock, and Helps shorten the healing time of the tissue at the lock.

Therefore, the implant of the present invention includes an implant with screw teeth, and drill locks and locking holes at two ends of the implant; wherein, a plurality of holes are formed on the surface of the implant. The surface of the implant includes at least a shaft surface that is exposed outwardly between any two adjacent teeth of the screw portion, each hole has a peripheral wall, and the peripheral wall contacts the edge of the surface of the implant An end edge is formed, and the end edges of the adjacent holes are connected to connect the adjacent peripheral walls, so that the adjacent holes communicate with each other to construct a channel, and the connection of the holes can form a plurality of series connection patterns In order to form a plurality of channels; according to the above, after the implant is implanted in a lock, the cells derived from the lock can be easily attached to the edges of the holes and extend into each of the holes Quickly attach and proliferate in a channel, and the proliferated cells extend outward from the holes and channels and continue to attach to other holes and channels, so as to form a mutual linking effect of the cells, so the cells can stably attach in a short time On the implant, the effect of covering and positioning the implant is achieved, so the combination effect between the implant and the lock is greatly improved, which not only avoids the loosening of the implant during the healing process, but also helps shorten the tissue of the lock. Healing time.

〔this invention〕

3‧‧‧Implant

31‧‧‧Implant

32‧‧‧hole

311‧‧‧Drill lock

312‧‧‧lock hole

313‧‧‧Thread

3131, 3132

321‧‧‧ Zhoubi

322‧‧‧End edge

323‧‧‧channel

E1‧‧‧The first end

E2‧‧‧Second end

P1, P2‧‧‧Pitch

OD1‧‧‧Maximum outer diameter of the first end

OD2‧‧‧Maximum outer diameter of the second end

5‧‧‧Alveolar bone

51‧‧‧Pre-drilled

BC‧‧‧cell

S‧‧‧Implant surface

S1‧‧‧Shaft surface

S2‧‧‧Screw surface

FIG. 1 is a schematic diagram of the first preferred embodiment of the present invention.

2 is a schematic diagram of the second preferred embodiment of the present invention.

FIG. 3 is a schematic diagram of the third preferred embodiment of the present invention.

FIGS. 4A to 4H are schematic diagrams of different implementations of the distribution of implant holes of the present invention, wherein FIGS. 4A and 4B are enlarged schematic diagrams of the circled area of FIG. 1, and FIGS. 4C, 4D and 4G are enlarged schematic diagrams of the circled area of FIG. 2, 4E, 4F, and 4H are enlarged schematic views of the circle around FIG. 3.

FIG. 5A to FIG. 5C are enlarged plan views of the connection of the implant holes of the present invention to form channels with different communication types.

FIG. 6 is a perspective schematic view of FIG. 5A.

7 to 9 are schematic diagrams of the present invention applied to dental implant surgery.

The foregoing and other technical contents, features and effects of the present invention will be clearly understood in the following detailed description of preferred embodiments with reference to the drawings.

The implant material 3 of the preferred embodiment of the present invention is mainly used for medical implantation, such as in the dentistry, orthopedics, etc. where the cell proliferation is required, that is, the implant material 3 can be implanted into the oral cavity Artificial tooth implants of alveolar bone, or implants used in orthopedic surgery such as artificial bone nails, etc., and hereafter only the locking site is the alveolar bone in the oral cavity, and the implant 3 is used as an implant The dental implant of the alveolar bone is taken as an example.

Referring to FIG. 1, the implant 3 of the present invention includes an implant 31, a drill-locking portion 311, and a locking hole 312 at the opposite of the drill-locking portion 311; wherein, the implant 31 has a first end E1 and A second end E2 opposite to the first end E1, and the drill lock portion 311 is provided at the first end E1, the locking hole 312 is formed at the second end E2 of the implant 31 and opposite the drill lock At the portion 311, a screw portion 313 is spirally provided between the two ends E1, E2 on the implant 31, and the screw portion 313 may include a screw portion extending from the first end E1 to the second end E2 3131, a pitch P1 is formed between any two adjacent teeth of the thread segment 3131 to form a one-stage thread structure (see FIG. 1); or the thread portion 313 includes at least two thread segments 3131, 3132 (Refer to FIGS. 2 and 3). Here, only two screw segments are taken as an example, that is, a screw segment 3131 extending from the first end E1 of the implant 31 is spirally provided on the implant 31, and the screw thread Segment 3131 extends to the second end Another thread segment 3132 between E2, a pitch P1 is formed between any two adjacent threads of the thread segment 3131, and a pitch P2 is formed between any two adjacent teeth of the other thread segment 3132, The pitch P1 and P2 of the screw thread can be different. For example, the pitch P1 of the thread segment 3131 is preferably greater than the pitch P2 of the other thread segment 3132, and the maximum outer diameter OD2 of the second end E2 can be equal to the first The maximum outer diameter OD1 of the end E1 (see FIG. 3), or the maximum outer diameter OD2 of the second end E2 may be greater than the maximum outer diameter OD1 of the first end E1 (see FIG. 2), for example, where the other thread segment 3132 is located The outer diameter of the implant 31 gradually increases toward the second end E2, so that the outer diameter of the thread of the other thread segment 3132 also gradually increases in the direction opposite to the drill lock portion 311, which is beneficial to quick and stable locking effect .

Furthermore, the surface S of the implant 31 is provided with a plurality of holes 32, and the size and shape of the holes 32 are not limited. The surface S includes any surface on the implant 31 that can be exposed. For example, the plant The surface S of the body 31 includes a shaft surface S1. The shaft surface S1 extends axially from the first end E1 to the second end E2 and is exposed on the outer outer surface, and the outer surface can be located on the outer surface Between any two adjacent screw teeth of the screw portion 313, or the surface S of the implant 31 may include the aforementioned shaft surface S1 and the screw surface S2 of all or part of the screw teeth of the screw portion 313, so that The implant 31 is exposed in some or all of the areas where the holes 32 are formed: taking one of the screw structure in FIG. 1 as an example, it can extend between the first end E1 and the second end E2 and be in the screw section A hole 32 (as shown in FIG. 4A) is formed in the shaft surface S1 exposed between adjacent screws of 3131, or any screw surface S2 (as above, on the shaft surface S1, the screw thread of the screw segment 3131) The lower tooth surface or both tooth surfaces, etc.) are provided with holes 32, as shown in FIG. 4B.

If the two-stage screw structure of FIGS. 2 and 3 is taken as an example, it can extend between the first end E1 and the second end E2 and between the two screw sections as shown in FIGS. 4G and 4H A hole 32 is formed in the shaft surface S1 exposed between any two adjacent screws of 3131 and 3132; or as shown in FIGS. 4C and 4E, any screw on the surface of the shaft S1 and a screw segment 3131 A hole 32 is formed in the tooth surface S2; or as shown in FIGS. 4D and 4F, any screw surface S2 (such as the upper or lower tooth surface or the screw surface) on the shaft surface S1, the screw segment 3131 and the other screw segment 3132 Both tooth surfaces, etc.) are provided with holes 32.

Referring to FIG. 6, each hole 32 has a peripheral wall 321. The peripheral wall 321 is a wall surface extending from the surface S of the implant 31 toward the interior of the implant 31 to surround the hole 32, and the wall surface of the peripheral wall 321 Preferably, it may be rough and non-smooth. The peripheral wall 321 and the surface S of the implant 31 are connected to an end edge 322, and the end edge 322 of any hole 32 is connected to the end edge 322 of another adjacent hole 32. The adjacent peripheral walls 321 are connected to each other, so that the adjacent holes 32 are connected one by one to form a channel 323. The implant 31 uses the connection of the holes 32 to form a plurality of channels 323. 5A to 5C (described below), here only FIG. 5A is shown in a perspective view as shown in FIG. 6, and the aforementioned holes 32 of FIGS. 4A-4H are also only shown as an example of FIG. 5A; Furthermore, the edge 322 of each hole 32 may preferably be non-flat, for example, at the edge where the peripheral wall 321 and the surface S of the implant 31 are connected to form uneven and staggered non-smooth lines, so that the edge 322 is rough, and the following description uses the example of the edge 322 being rough.

Following the previous stage, the connection of the holes 32 affects the communication direction of each channel 323. For example, the holes 32 are connected in series around the surface S of the implant 31 (as shown in the X direction in the figure), so that A plurality of independent lateral channels 323 are formed in the implant 31, as shown in FIG. 5A and FIG. 6 as a lateral communication space; the holes 32 can also be connected in the Y direction (such as an axial direction) as shown in the figure, In order to form a plurality of independent longitudinal channels 323, as shown in FIG. 5B, a longitudinal communication space; such holes 32 can also be connected in the X and Y directions, so that the adjacent independent channels 323 communicate with each other, thus forming a vertical and horizontal interpenetrating pattern, as shown in FIG. 5C is a vertical and horizontal communication space; During the process of attachment and hyperplasia, a uniform and regular distribution is formed, and then they are mutually linked to firmly cover the implant 31 to position the implant 31. The following description is only illustrated in the aspect of FIG. 5A.

Referring to FIG. 7, when using, the implant 3 is applied to the dental implant surgery implanted in the alveolar bone 5 of the oral cavity as an example; when performing dental implant surgery, the surgical instrument (not shown) is inserted first In the locking hole 312, the screw portion 313 is connected to the wall surface of the pre-drilled hole 51 of the alveolar bone 5 for cutting and tapping, so as to achieve implant positioning; if the implant 31 has two screw segments 3131, 3132 At the time (see FIG. 8), the thread segment 3131 with a larger pitch P1 can be used to contact the wall surface in a large area during the drilling lock process, so as to cut the wall surface and screw into the pre-drilled hole 51, and then The other thread segment 3132 of the small pitch P2 continues to cut and screw along the spiral path of the thread segment 3131, so that the implant 31 can be quickly screwed into the alveolar bone 5 to help reduce the number of patients during surgery The discomfort can also reach a stable position.

After the implant 31 is implanted into the alveolar bone 5, the alveolar bone 5 will derive bone cells BC during the healing process (refer to FIG. 9 for simplicity), because the edge 322 of the holes 32 is rough Therefore, it is possible for bone cells BC to quickly and smoothly attach to the end edges 322 and extend into the holes 32, and then perform climbing and hyperplasia in and out of the holes 32. In other words, the bone cells BC are along After the end edges 322 are entered into the holes 32 and implanted, the peripheral wall 321 in the channels 323 can be quickly attached to and perform the proliferation and differentiation of cell proliferation behavior, through the internal communication space of each channel 323 , The bone cells BC available for proliferation continue to climb along the peripheral wall 321, extend to spread in each channel 323, and then extend from the respective channel 323, hole 32 and along the surface S In order to climb into other channels 323 and holes 32, the bone cells BC can be tightly linked to each other, and cover the entire implant 31, so that the implant 31 is firmly fixed in the alveolar bone 5 to avoid loosening, Therefore, the bone integration effect between the implant 31 and the alveolar bone 5 is increased.

Therefore, by using the interconnected holes 32 or the holes 32 and the configuration of the rough end 322 in time, the bone cells BC can be smoothly and quickly attached to the end edges 322 and the holes 32 to enhance the cells BC The initial adhesion and growth ability, and for the cells BC to continue to climb and distribute quickly and evenly in these channels 323, plus the internal communication space of these channels 323 also makes the implant 31 and bone cells BC have a large contact area, It is more beneficial to enhance the cell's attachment and growth ability, thus promoting the rapid attachment, hyperplasia and tight linking of bone cell BC, which not only increases the bone integration effect after tooth implantation, but also accelerates the healing speed of bone tissue to shorten the healing time.

In summary, the implant of the present invention mainly uses the surface of the implant to create a plurality of holes, and the end edges of the adjacent holes are connected in series to facilitate the formation of a plurality of channels by multiple series connection, thereby, the implant The cells derived from the implanted locking site are smoothly attached to the holes, and extend into each channel to quickly climb, distribute and proliferate. After proliferation, the cells are further linked between the holes and channels so that the cells are in Climbing on the implant in a short time and covering the implant in a stable position, thereby improving the combination effect of the implant and the lock, not only to avoid loosening of the implant, but also to speed up the healing of the lock.

However, the above are only for explaining the preferred embodiments of the present invention, but the scope of the implementation of the present invention cannot be limited by this, that is, simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the description of the invention , Should still fall within the scope of this invention patent.

32‧‧‧hole

321‧‧‧ Zhoubi

322‧‧‧End edge

323‧‧‧channel

S‧‧‧Implant surface

Claims (7)

An implant material includes an implant having a first end and a second end opposite to the first end, the implant is used for cutting and screwing into a locking place for implant positioning; wherein, the implant includes The drill lock part and the locking hole provided on the first and second ends, and the screw tooth part which is spirally provided between the first and two ends, a plurality of holes are formed on the surface of the implant, the surface of the implant includes a The first end extends axially to the second end and exposes the shaft surface outwardly between any two adjacent teeth of the screw portion, and each hole has a surface from the surface of the implant toward the implant The peripheral wall extending inside is formed as an end edge at the edge where the peripheral wall meets the surface of the implant, and the end edge of each hole is connected to the end edge of another adjacent hole to connect the adjacent peripheral walls to each other, Make the adjacent holes communicate with each other in series to form a channel, and the communication of the adjacent holes of the complex string forms a plurality of channels, and the end edge of each hole has a non-smooth line with concave and convex staggered, so that each hole The edge is rough. The implant according to item 1 of the patent application scope, wherein the surface of the implant further includes the screw surface of the screw portion. The implant according to any one of items 1 to 2 of the patent application scope, wherein the screw portion includes at least two screw segments, and a screw is formed between any two adjacent screws of the screw segments Tooth pitch, the pitch of these thread segments is different. The implant of claim 3, wherein the maximum outer diameter of the second end is greater than the maximum outer diameter of the first end. The implant according to item 1 of the scope of the patent application, in which the end edges of the holes are connected in the lateral direction so as to form a laterally penetrating independent channel. The implant according to item 1 of the scope of the patent application, wherein the end edges of the holes are longitudinally connected so as to form a longitudinally independent channel. The implant according to item 1 of the scope of the patent application, wherein the end edges of the holes are connected in the lateral direction and the longitudinal direction, so that the adjacent channels are connected to each other to form a criss-cross pattern.

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