TWM625867U - Structure of artificial finger joint - Google Patents

Abstract

The present invention provides an artificial finger joint structure, including a first implant having a a first pivoting portion; and a second implant having a second pivoting portion, wherein the second pivoting portion is movably pivoted with the first pivoting portion. The first pivot part of the first implant and the second pivot part of the second implant are matched with corresponding soft collars with their corresponding first grooves and second grooves, so that the first implant The relative pivoting between the implant and the second implant can be anti-wear and more smooth, and the structure is simplified and easy to assemble.

Description

The structure of artificial finger joints

This work is about an artificial joint, especially about the structure of an artificial finger joint.

It is known that if the finger joint disease is more serious, it needs to be cut. However, if the knuckles are diseased and the joints lose their function of movement, debridement is required and a steel nail is inserted between the bones of the two knuckles for fixation.

However, after the bone between the two knuckles is driven into the steel nail, the knuckle cannot be bent, which makes the movement of the knuckle inflexible and causes inconvenience in daily life.

In view of the aforementioned problems, the author has further researched and developed it. Therefore, the main purpose of this creation is to provide a structure of an artificial finger joint. The second (active end) implant is implanted in the bone of the other phalanx, while the first implant and the second implant are pivotally joined so that the two phalanxes can be flexed like a joint Activities, in order to learn the problem that the knuckles cannot be bent, and can maintain a normal routine in life.

Another object of the present invention is that the first pivot part of the first implant and the second pivot part of the second implant are matched with corresponding soft materials with their corresponding first grooves and second grooves. The collar enables the relative pivoting of the first implant and the second implant to be wear-resistant and smoother, and its knot Simple structure, easy to assemble.

Furthermore, another object of the present invention is that a soft plug is plugged in the blind hole of the top abutting wall of the first pivot part, and the covering sheet of the soft plug is arranged outside the blind hole and covers the top. abutting the wall to avoid friction between the second pivot part and the abutting wall.

In order to achieve the above-mentioned purpose, the present invention provides an artificial finger joint structure, including a first implant having a first pivot portion; and a second implant having a second pivot portion, wherein the The second pivot portion is movably pivoted with the first pivot portion.

In some embodiments, the first pivoting portion is substantially U-shaped, and has a top abutting wall and two discs, the abutting wall provides the second pivoting portion to abut, and the two discs are respectively connected to the abutting Both ends of the wall extend in the direction of the second implant.

In some embodiments, opposite sides of the two discs respectively have a first groove.

In some embodiments, the second pivot portion is disposed between the two disk bodies, and two side surfaces of the second pivot portion corresponding to the two disk bodies respectively have a second groove, and each of the second grooves corresponds to The corresponding first groove is provided.

In some embodiments, each of the second grooves is provided with a bump.

In some embodiments, the structure of the artificial finger joint further includes two loops, respectively disposed between the corresponding first groove and the second groove.

In some embodiments, each of the collars has a central hole that provides a corresponding arrangement of the bumps and an annular groove that surrounds the central hole.

In some embodiments, the structure of the artificial finger joint further includes a bolt, and the abutting wall of the first pivot portion is recessed with a blind hole, and the bolt is partially plugged into the blind hole.

In some embodiments, the plug has a cylinder and a covering sheet, the covering sheet is arranged at one end of the cylinder, the plunger plug is arranged in the blind hole, and the covering sheet is arranged at the blind hole Outside the hole, a side surface of the cladding sheet adjacent to the cylinder contacts the abutting wall, and a side surface of the cladding sheet away from the cylinder contacts an end surface of the second pivot portion.

In some embodiments, at least one inclined cone ring is formed on the outer surface of the cylinder, and the at least one inclined cone ring faces outward and is inclined toward the direction of the cladding sheet.

100: Structure of artificial knuckles

1: First Implant

11: The first pivot part

12: The first implant

13: Against the wall

14: Disc body

15: The first groove

16: Blind hole

2: Second Implant

21: Second pivot part

22: The second implant

23: Second groove

24: Bumps

3: collar

31: Center hole

32: Ring groove

4: Bolt

41: Cylinder

42: wrapping sheet

43: inclined cone ring

200: Knuckle bones

300: Knuckle bones

FIG. 1 is an exploded schematic diagram of the structure of the artificial finger joint.

FIG. 2 is a three-dimensional schematic diagram of the structure of the artificial finger joint.

FIG. 3 is a schematic cross-sectional view of the structure of the artificial finger joint created along the section line A-A of FIG. 2 .

FIG. 4 is a schematic cross-sectional view of the structure of the artificial finger joint created along the section line B-B of FIG. 2 .

FIG. 5 is a schematic diagram of the action of creating the structure of the artificial finger joint.

FIG. 6 is a schematic diagram of the structure of the artificial finger joint being implanted.

Regarding the technical means used by this creation to achieve the above-mentioned purpose, the following implementation forms are used in conjunction with the diagrams to describe in detail below, so as to enable the audience to have a deeper understanding and approval.

FIG. 1 is an exploded schematic diagram of the structure of the artificial finger joint. FIG. 2 is a three-dimensional schematic diagram of the structure of the artificial finger joint. FIG. 3 is a schematic cross-sectional view of the structure of the artificial finger joint created along the section line A-A of FIG. 2 . FIG. 4 is a schematic cross-sectional view of the structure of the artificial finger joint created along the section line B-B of FIG. 2 .

Please refer to FIG. 1 to FIG. 4 , the structure 100 of the artificial finger joint of the present invention includes a first implant 1 , a second implant 2 , two rings 3 and a plug 4 ; wherein the first implant 1 can also be expressed as a fixed-end implant, and the second implant 2 can also be expressed as a movable-end implant, the first implant 1 can be movably pivoted relative to the second implant 2, but this Creation is not limited to this.

The first implant 1 has a first pivot portion 11 and a first implant portion 12 . The second implant 2 has a second pivot portion 21 and a second implant portion 22 . The second pivot portion 21 is movably pivoted with the first pivot portion 11 .

FIG. 5 is a schematic diagram of the action of creating the structure of the artificial finger joint. FIG. 6 is a schematic diagram of the structure of the artificial finger joint being implanted. Referring to FIG. 6 , the first implant portion 12 can be implanted in one phalangeal bone 200 for fixation, and the second implant portion 22 can be implanted in another movable phalangeal bone 300 , as shown in FIG. 5 . As shown, the second implant 2 can pivotally move relative to the first implant 1 .

Referring back to FIG. 1 to FIG. 4 , the first pivot portion 11 is generally U-shaped, and has a top abutting wall 13 and two discs 14 . The abutting wall 13 can provide the second pivoting portion 21 to abut against, and the two discs 14 are respectively connected to two ends of the abutting wall 13 and extend toward the direction of the second implant 2 . In other words, the extending direction of the two discs 14 is perpendicular to the surface of the abutting wall 13 . In some embodiments, opposite sides of the two discs 14 respectively have a first groove 15 . In some embodiments of the present invention, each disc body 14 is substantially disc-shaped.

Also referring to FIGS. 1 to 4 , the second pivot portion 21 may be disposed between the two disk bodies 14 . The second pivot portion 21 has a second groove 23 corresponding to two side surfaces of the two disk bodies 14 , and each of the second grooves 23 is disposed corresponding to the corresponding first groove 15 . In some embodiments, each second groove 23 is provided with a bump 24 . In some embodiments, the second pivot portion 21 is substantially disc-shaped. In some embodiments, the first groove 15 is in the shape of a disc, and the second groove 23 is generally in the shape of a circular ring. The protrusion 24 Roughly round.

Please refer to FIGS. 1 to 4 again, the two collars 3 are respectively disposed between the corresponding first grooves 15 and the second grooves 23 . In some embodiments, each collar 3 has a central hole 31 and an annular groove 32 . The central hole 31 provides corresponding projections 24 and the annular groove 32 surrounds the central hole 31 . In other words, each collar 3 is sleeved on the corresponding protrusion 24 , thereby positioning each collar 3 . In some embodiments, each collar 3 is made of soft material, so that the first implant 1 and the second implant 2 can achieve smooth movement and anti-wear effects during multiple relative pivoting periods. .

Please continue to refer to FIGS. 1 to 4 , a blind hole 16 is recessed on the abutting wall 13 of the first pivot portion 11 , and the bolt 4 can be partially inserted into the blind hole 16 . In some embodiments, the plug 4 has a cylinder 41 and a wrapping sheet 42 . The cladding sheet 42 is arranged at one end of the cylinder 41 , the cylinder 41 is plugged into the blind hole 16 , and the cladding sheet 42 is arranged outside the blind hole 16 . Specifically, a side surface of the cladding sheet 42 adjacent to the cylinder 41 contacts the abutting wall 13 , and a side surface of the cladding sheet 42 away from the cylinder 41 contacts an end surface of the second pivot portion 21 . In some embodiments, the plug 4 may be made of a soft material. Thereby, during or after the first implant 1 is pivoted relative to the second implant 2 for many times, the end surface of the side surface of the second pivot portion 21 contacting the side surface of the covering sheet 42 can buffer the wear therebetween, and the After the cladding sheet 42 is worn out, the bolt 4 can still be disassembled for replacement due to its compact structure and easy assembly and disassembly.

In some embodiments, at least one inclined cone ring 43 is formed on the outer surface of the cylinder 41 , and the at least one inclined cone ring 43 is inclined outward and toward the direction of the cladding sheet. In this way, after the plug 4 is inserted into the blind hole 16, its pressing force can be increased to strengthen its fixation.

In some embodiments, the artificial finger joint structure 100 of the present invention can be applied to finger joints and/or toe joints, but is not limited thereto.

With the above-mentioned structure, the structure 100 of the artificial finger joint of the present invention is based on the first (fixed) The fixed end) implant 1 is implanted in the bone 200 of a fixed phalanx, and the second (active end) implant 2 is implanted in the bone 300 of the other phalanx, and the first implant 1 and the first The two implants 2 are combined in a pivotable manner, so that the two knuckles can be flexibly moved like joints, so as to solve the problem that the conventional knuckles cannot be flexed, and can maintain normal daily work and rest.

Furthermore, the first pivot portion 11 of the first implant 1 and the second pivot portion 21 of the second implant 2 are matched with their corresponding first grooves 15 and second grooves 23 . The soft collar 3 enables the relative pivoting of the first implant 1 and the second implant 2 to be anti-wear and more smooth, and its structure is simplified and easy to assemble.

In addition, a soft plug 4 is plugged in the blind hole 16 of the abutting wall 13 of the first pivot portion 11 , and the covering sheet 42 of the soft plug 4 is disposed outside the blind hole 16 and covers the abutting wall 13 . In order to avoid friction between the second pivot portion 21 and the abutting wall 13 .

100: Structure of artificial knuckles

1: First Implant

11: The first pivot part

12: The first implant

13: Against the wall

14: Disc body

15: The first groove

16: Blind hole

2: Second Implant

21: Second pivot part

22: The second implant

23: Second groove

24: Bumps

3: collar

31: Center hole

32: Ring groove

4: Bolt

41: Cylinder

42: wrapping sheet

43: inclined cone ring

Claims (10)

A structure of an artificial finger joint, comprising: a first implant having a first pivot portion; and a second implant having a second pivot portion, wherein the second pivot portion is movably is pivotally connected with the first pivoting portion. The structure of the artificial finger joint according to claim 1, wherein the first pivot portion is substantially U-shaped, and has an abutting wall and two discs, the abutting wall provides the second pivot portion to abut against, the The two discs are respectively connected to two ends of the abutting wall and extend toward the direction of the second implant. The structure of the artificial finger joint according to claim 2, wherein opposite sides of the two discs respectively have a first groove. The structure of the artificial finger joint according to claim 3, wherein the second pivot portion is disposed between the two disk bodies, and the second pivot portion corresponds to two side surfaces of the two disk bodies with a second groove respectively , each of the second grooves is arranged corresponding to the corresponding first groove. The structure of the artificial finger joint according to claim 4, wherein each of the second grooves is provided with a protrusion. The structure of the artificial finger joint according to claim 5, further comprising two sets of rings, respectively disposed between the corresponding first groove and the second groove. The structure of the artificial finger joint according to claim 6, wherein each of the collars has a central hole and an annular groove, the central hole provides a corresponding arrangement of the protrusions, and the annular groove is arranged around the central hole. The structure of the artificial finger joint according to claim 7 further includes a bolt, and the abutting wall of the first pivot portion is recessed with a blind hole, and the bolt is partially plugged into the blind hole. The structure of the artificial finger joint according to claim 8, wherein the plug has a cylinder and a covering sheet, the covering sheet is arranged at one end of the cylinder, and the cylinder plug is arranged at the blind hole , the covering sheet is disposed outside the blind hole, a side surface of the covering sheet adjacent to the cylinder contacts the abutting wall, and a side surface of the covering sheet away from the cylinder contacts a side of the second pivot portion end face. The structure of the artificial finger joint according to claim 9, wherein at least one inclined cone ring is formed on the outer surface of the cylinder, and the at least one inclined cone ring faces outward and is inclined toward the direction of the covering sheet.

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