TWI687197B - Autogenous implant - Google Patents

Abstract

This creation is an autogenous implant, which includes an implant and at least one filling unit. The implant system includes a rod, a thread segment and a thread base. The thread segment is spirally disposed on the outer surface of the rod and the thread base A spiral datum line is formed, and the filling unit is provided at the bottom of the thread. Each filling unit includes a blade and a hole-filling part. The blade is located at the bottom of the thread and has a cutting surface. The cutting surface is located on the blade and along the spiral datum The direction of the line is inclined toward the bottom end of the rod, the cutting surface and the thread bottom have an acute angle, and the hole-filling portion is located at the bottom of the thread tooth and adjacent to the cutting surface. The autologous implant created by cutting the bone with the thread segment and the blade Bone debris is stopped by the cutting surface and collected from the autologous bone debris to fill the filling part, accelerate bone healing and shorten bone recovery time.

Description

Autogenous implant

This creation is an autogenous implant, especially an autogenous implant that uses autogenous bone chips to increase the speed of bone recovery.

In the existing society, when performing surgery on the back, teeth or other bones, bone nails play a pivotal role in the operation. After the bone nails are implanted into the body, the bone nails will squeeze and press the bone tissue in the body. Causes the destruction of the bone tissue, and the bone filling material can assist the reconstruction of the bone tissue. During the reconstruction of the bone tissue, the bone nail will be integrated into the bone tissue, so that the bone nail can be compatible with the bone in the living body. Tissue, in order to allow the bone nail to be more quickly integrated into the bone tissue, the materials of the bone supplement material that assists the reconstruction of the bone tissue are divided into four types: autogenous bone, allogeneic bone, heterogeneous bone and synthetic bone. The best choice for bone filling material. The autogenous bone is active and can support the space for bone cells to grow in. The autogenous bone has the function of growing bones, which allows the bone nail to be more quickly compatible with bone tissue.

In order to allow the bone nail to contain more autogenous bone, which has been added to the bone tissue for recovery, the surface of the bone nail will be produced by the method of steel ball impact or acid erosion to produce a plurality of holes, which are the bone nails An indentation is formed. When the bone nail is implanted into a living body, the organism is pressed by the bone nail to generate a plurality of autogenous bone debris. The majority of the autogenous bone debris accumulates on the outer surface of the bone nail Therefore, it enters into the majority of holes and the body's autogenous bone debris is accommodated into the majority of holes and the autogenous bone debris can accelerate the integration of the bone nail and the organism's bone tissue when the bones heal and recover after surgery To shorten the time for bone recovery.

However, when the majority of autologous bone debris accumulates on the outer surface of the bone nail, it is easy to collide with the outer surface of the bone nail due to continuous implantation of the bone nail. The outer surface of the bone nail is impacted by steel balls or eroded by acid The majority of holes produced by the method are formed by the concave depression of the nail, and the autogenous bone debris that has collided away from the outer surface of the nail cannot enter the majority of holes, and the majority of holes are depressed The majority of autogenous bone debris cannot be collected, so the autogenous bone debris generated by the organism being pressed by the bone nail is not easily retained by the bone nail, causing the loss of autogenous bone debris and affecting the time for bone recovery .

The main purpose of this creation is to provide an autogenous implant to improve the problem that the existing bone nail holes cannot collect autogenous bone debris, resulting in the loss of autogenous bone debris and prolonging the bone recovery time.

In order to achieve the purpose of pre-disclosure, the autologous implant of this creation includes: an implant, the implant system includes a rod, a threaded segment and a threaded tooth bottom, the threaded segment is spirally disposed on the outer surface of the rod, The thread base is spirally arranged on the outer surface of the rod, and the thread base is arranged adjacent to the thread segment, the center of the thread base defines a spiral datum line; and at least one filling unit, the filling unit is provided in For the thread tooth bottom of the implant, each filling unit includes a blade member and a hole filling part, the blade member is provided and protrudes from the thread tooth bottom, the blade member has a cutting surface and a blade portion, and the cutting surface It is located on one side of the blade and is inclined toward the bottom end of the rod along the direction of the spiral reference line. The angle between the cutting surface and the thread bottom is an acute angle. The blade is located on the top of the cutting surface At the edge, the hole-filling portion is provided on the rod and located at the bottom of the thread, and the hole-filling portion is adjacent to the cutting surface of the blade member.

In the creation of the autologous implant by implanting the implant into the bone of the human body, the thread segment and the blade of the filling unit will cut the bone during the implantation of the bone, and let The bone is able to produce a large number of autogenous bone chips, and the majority of autogenous bone chips contact the cutting surface of the blade, because the angle between the cutting surface and the thread bottom is an acute angle, then the majority of autogenous bone The debris will be stopped by the cutting surface and collected by the inclination of the cutting surface to the bottom of the cutting surface, improving preservation and reducing the loss. The majority of autologous bone debris is accumulated and stacked and filled into the hole filling portion to achieve The effect of accelerating bone healing and reducing bone recovery time.

As shown in FIGS. 1 to 3, it is disclosed a preferred embodiment of the autologous implant of the present invention. As can be seen from the drawings, the autologous implant of the present invention includes an implant 10 and at least one filling unit 20.

As shown in FIGS. 1 to 3, the implant 10 includes a rod 11, a threaded section 12 and a threaded tooth base 13. The threaded section 12 is spirally coiled on the outer surface of the rod 11 and from the rod The bottom end of the member 11 extends to the top end of the rod member 11, the threaded tooth base 13 is spirally disposed on the outer surface of the rod member 11, and the threaded tooth base 13 is arranged adjacent to the threaded section 12, the threaded section 12 There are a plurality of teeth 14, the plurality of teeth 14 surrounds the rod 11 at intervals, and a spiral datum line 15 is defined in the center of the threaded tooth base 13, wherein the implant 10 has a through hole 16, the through hole 16 is a series The rod 11 penetrates the rod 11 axially, and the cross-sectional shape of the through hole 16 is polygonal. Further, the threaded section 12 is a continuously extending structure or a discontinuously extending structure. Even the threaded section 12 may be broken tooth.

As shown in FIGS. 2 to 4, the filling unit 20 is arranged on the thread base 13 of the implant 10 at intervals, and the filling unit 20 is arranged on the thread base 13 of the implant 10 at intervals, each A filling unit 20 includes a blade member 21 and a hole-filling portion 22. The blade member 21 is provided and protrudes from the thread base 13. The blade member 21 has a cutting surface 23 and a blade portion 24. The cutting surface 23 Located on one side of the blade 21 and inclined toward the bottom end of the rod 11 along the direction of the spiral reference line 15, the angle Θ between the cutting surface 23 and the thread base 13 is an acute angle, and the blade 24 is located at the top edge of the cutting surface 23. The hole-filling portion 22 is provided on the rod 11 and located at the thread bottom 13. The hole-filling portion 22 is adjacent to the cutting surface 23 of the blade 21.

In the above, when the number of the filling units 20 is plural, the center of the hole-filling portions 22 of two adjacent filling units 20 may be located on the same side or different sides of the spiral reference line 15. The cross-sectional shape of the blade member 21 presents geometric shapes such as triangles, circles, or polygons, or irregular curved surfaces such as wavy, cloud-shaped lines, etc., and the distance from the top edge of the blade member 21 to the thread bottom 13 is less than that of the adjacent upper part The distance from the top edge of the tooth portion 14 to the thread bottom 13 is half, and the hole filling portion 22 is formed by a cylindrical hole, a conical hole, a pyramidal hole, a polygonal hole, or other geometric holes or microstructures In addition, as shown in FIGS. 4 and 5, the cutting surface 23 of the blade 21 is a curved surface or a flat surface. In this embodiment, the through hole 16 of the implant 10 communicates with the majority of the filling unit The hole-filling portion 22 of 20, further, as shown in FIG. 1, FIG. 2 and FIG. 6, the contact surface 25 of the cutting edge member 21 and the spiral tooth base 13 is defined as a contact line 25, the contact line 25 and The angle of the spiral reference line 15 is between 0 and 180 degrees.

As shown in FIGS. 1, 3 and 4, a preferred embodiment of the autologous implant of the present invention is disclosed. The user extends into the through-hole 16 with a specific pick-up tool (not shown), and Take the autogenous implant, and implant the autogenous implant into the bone 30 of the human body from the bottom end of the spiral fiducial line 15, during the process of implanting the bone 30, the rod 11 will rotate and allow the majority of teeth 14 of the threaded section 12 to cut the bone 30. When the majority of teeth 14 is cut, the rod 11 will be moved downward, and then the bone 30 will contact the blade of the filling unit 20 21, the blade portion 24 of the blade 21 will cut the bone 30 to form a plurality of autogenous bone chips 31, because the angle Θ between the cutting surface 23 and the thread base 13 is an acute angle, then the cutting surface 23 Inclining towards the hole-filling portion 22, the majority of autogenous bone chips 31 contacts the cutting surface 23 and remains along the incline of the cutting surface 23 at the bottom of the cutting surface 23, the majority of autogenous bone chips 31 accumulates and fills Into the hole-filling portion 22, since the autogenous bone chips 31 cut by the blade 21 can be stopped and collected by the cutting surface 23, the majority of the autogenous bone chips 31 are well preserved and not easily lost, and the bone 30 is The autogenous bone chips 31 cut by the body are filled in the hole-filling portion 22, which can accelerate the healing of the bone 30 and shorten the recovery time of the bone.

In addition, the cross-sectional shape of the through-hole 16 of the implant 10 is polygonal, which allows the user to use a specific pick-up tool to extend into the through-hole 16 to achieve a firmer grip and to lock the self-planting The process of inserting objects is better controlled, the cross-sectional shape of the blade 21 of the filling unit 20 is not limited, and the distance from the top edge of the blade 21 to the thread bottom 13 is smaller than that of the adjacent upper tooth 14 The half of the distance from the top edge to the thread bottom 13 can keep the stability of the thread section 12 locked. The hole-filling portion 22 is a cylindrical hole, a conical hole, a pyramidal hole, a polygonal hole, etc. Geometric holes, even the cross-sectional shape of the hole-filling portion 22 is not limited by the geometric shape. In addition, as shown in FIGS. 4 and 5, the cutting surface 23 of the blade 21 can be cut whether it is a curved surface or a flat surface The bone 30 also collects the function of autogenous bone chips 31.

In summary, the autogenous implant of the present invention cuts the bone 30 through the threaded section 12 and the blade member 21 of the filling unit 20 cuts the bone 30, so that the bone 30 can produce many autogenous bone chips 31, and the cutting surface 23 of the blade 21 stops and collects the majority of autogenous bone debris 31, so that the majority of autogenous bone debris 31 retains good preservation and is not easily lost, the autogenous bone collected by the cutting surface 23 The shavings 31 are filled in the hole-filling portion 22 to achieve the effect of accelerating the healing of the bone 30 and reducing the recovery time of the bone.

10: Implant

11: Rod

12: Thread section

13: Thread bottom

14: Teeth

15: Spiral baseline

16: through hole

20: Fill the unit

21: Blade pieces

22: Filling hole

23: Cutting surface

24: Blade part

25: contact line

Θ: angle

30: Skeleton

31: Autologous bone chips

Figure 1: A schematic perspective view of a preferred embodiment of the autologous implant of the present invention. Figure 2: A schematic side view of a preferred embodiment of the autologous implant of the present invention. Figure 3: A schematic cross-sectional view of the A-A cut line of Figure 2. Fig. 4: A schematic cross-sectional view of the operating state of the A-A cutting line of Fig. 2. Fig. 5: A schematic cross-sectional view of the operation state of another cutting aspect of the A-A cutting plane line of Fig. 2. Fig. 6: A partially enlarged schematic side view of another aspect of the blade part of one preferred embodiment of the autologous implant.

10: Implant

11: Rod

12: Thread section

13: Thread bottom

14: Teeth

15: Spiral baseline

16: through hole

20: Fill the unit

21: Blade pieces

22: Filling hole

23: Cutting surface

24: Blade part

25: contact line

Claims (5)

An autogenous implant includes: an implant, the implant system includes a rod, a threaded segment and a threaded tooth bottom, the threaded segment is spirally coiled on the outer surface of the rod, and the threaded tooth bottom is spiral The ground plate is arranged on the outer surface of the rod, and the thread bottom is arranged adjacent to the thread segment, a spiral datum line is defined in the center of the thread bottom; and a plurality of filling units are arranged on the thread of the implant At the bottom, each filling unit includes a blade member and a hole-filling portion, the blade member is disposed and protrudes from the thread bottom, the blade member has a cutting surface and a blade portion, the cutting surface is located on a side of the blade member Side and along the direction of the spiral datum line inclined toward the bottom end of the rod, the angle between the cutting surface and the thread bottom is an acute angle, the cutting edge portion is located at the top edge of the cutting surface, the hole filling portion The hole filling part is arranged on the rod and located at the bottom of the screw thread. The hole filling part is adjacent to the cutting surface of the blade member. The center of the hole filling part of two adjacent filling units can be located on the same side or different sides of the spiral reference line. The autogenous implant according to claim 1, wherein the hole-filling part is a cylindrical hole, a conical hole, a pyramidal hole, a polygonal hole, or other geometric holes or irregular holes formed by the arrangement of microstructures . The autogenous implant according to claim 1 or 2, wherein the cross-sectional shape of the blade member of the filling unit presents a geometric shape such as a triangle, a circle or a polygon or an irregular curved surface such as a wavy shape or a cloud-shaped line, and The distance from the top edge of the blade to the thread bottom is less than half of the distance from the top edge of the adjacent thread segment to the thread bottom. The cutting surface of the blade is a curved surface or a flat surface. The autogenous implant according to claim 1 or 2, wherein a contact line between the cutting surface of the blade member and the spiral tooth base is defined as a contact line, and the angle between the contact line and the spiral datum line is between 0 To 180 degrees. The autogenous implant according to claim 3, wherein the point where the cutting surface of the blade member meets the spiral tooth bottom is defined as a contact line, and the angle between the contact line and the spiral datum line is from 0 to 180 Degrees.

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