TWI689297B - Arthritis correction and fixation device - Google Patents

Abstract

An arthritis correction and fixation device and operating method thereof are disclosed. An arthritis correction and fixation device is used to connect distal and middle phalanges of a finger. The arthritis correction and fixation device includes a first unit, a second unit and a connection unit. The first unit connects the distal phalange and has a first threaded portion and a first connecting portion. The second unit connects the middle phalange and has a second threaded portion and a second connecting portion. The first connection part and the second connection part are connected through the connection unit, so that the first unit and the second unit can act relative to each other. When the first threaded portion is rotated, the first connecting portion drives the second unit to move together in a direction away from the first threaded portion, thereby changing the distance between the distal and middle phalanges.

Description

Arthritis correction fixation device

The invention relates to finger joints, in particular to an arthritis correction fixation device and its operation method.

The joint is the connecting area of the two bones of the human body, and is in charge of many movements of the human body (such as knee bending, fist, etc.). Among the joints responsible for movement, the structure of most joints is covered by an articular capsule, which looks like a wrap around two bones, including cartilage and synovial fluid. The cartilage provides cushioning for the connection between the two bones. Synovial fluid is like lubricating fluid, which makes bone movement smooth.

Once the cartilage is worn out or the secretion of synovial fluid is abnormal due to various reasons, it will cause pain, swelling, fever, stiffness and other discomforts, which are typical symptoms of arthritis. There are many types of arthritis, such as rheumatoid arthritis, degenerative arthritis, gouty arthritis and so on.

When the patient's finger suffers from arthritis, the cartilage of the knuckle of the finger joint has been worn, so that the distal phalanx and the middle phalanx will rub against each other to produce pain, resulting in the patient's fingers easily feeling uncomfortable during movement, so it is urgently needed Appropriate finger correction fixation device to assist.

In view of this, the present invention provides an arthritis correction fixation device and an operation method thereof to solve the problems mentioned in the prior art.

A preferred embodiment of the present invention is an arthritis correction fixation Device. In this embodiment, the arthritis correction fixation device is used to connect the distal phalanx and the middle phalanx of the finger. The arthritis correction fixation device includes a first unit, a second unit and a connection unit. The first unit is connected to the distal phalanx and has a first threaded portion and a first connecting portion. The second unit is connected to the middle phalanx and has a second threaded portion and a second connecting portion. The first connection part and the second connection part are connected to each other through the connection unit, so that the first unit and the second unit can move relative to each other. When the first threaded portion rotates, the first connecting portion drives the second unit to move away from the first threaded portion together, thereby changing the distance between the distal phalanx and the middle phalanx.

In an embodiment of the invention, the first unit further includes screws. The screw is disposed in the first threaded portion and is engaged with the first connecting portion, and the rotation directions of the screw and the first threaded portion are opposite to each other.

In one embodiment of the present invention, when the first threaded portion rotates in the first rotational direction, the screw rotates in a second rotational direction opposite to the first rotational direction and moves away from the first threaded portion, and The first connecting portion and the second unit connected to the first connecting portion are driven to move away from the first threaded portion, thereby increasing the distance between the distal phalanx and the middle phalanx.

In one embodiment of the present invention, the first connecting portion has a receiving space for receiving the second connecting portion.

In one embodiment of the present invention, the first connection portion has a first through hole and the second connection portion has a second through hole. When the second connection portion is accommodated in the accommodating space of the first connection portion, the first connection portion The hole and the second through hole are aligned with each other, and the connecting unit passes through the first through hole and the second through hole to connect the first connecting portion and the second connecting portion.

Another preferred embodiment of the present invention is an operation method of an arthritis correction fixation device. In this embodiment, the operation method of the arthritis correction fixation device is used to operate the arthritis correction fixation device to connect the distal phalanx and the middle phalanx of the finger. The arthritis correction fixation device includes a first unit, a second unit and a connection unit. the first The unit has a first screw portion and a first connection portion. The second unit has a second screw portion and a second connection portion. The first connection part and the second connection part are connected to each other through the connection unit, so that the first unit and the second unit can move relative to each other.

The operation method of the arthritis correction fixation device includes the following steps: (a) connecting the first unit and the second unit to the distal phalanx and the middle phalanx; and (b) when the first threaded part rotates, the first connecting part drives the first The two units move together away from the first threaded portion to change the distance between the distal phalanx and the middle phalanx.

Compared with the prior art, when the patient's finger suffers from arthritis, the arthritis correction fixation device and its operating method of the present invention can be set in the patient's finger and connected between the distal phalanx and the middle phalanx, and can be seen by the patient The actual needs of the joint distraction (Joint distraction) method to adjust the distance between the distal phalanx and the middle phalanx, so that the distal phalanx and the middle phalanx can be relatively extended to avoid the distal phalanx and the middle phalanx Rubbing against each other, it can effectively reduce the pain caused by the patient's finger movement.

The advantages and spirit of the present invention can be further understood through the following detailed description of the invention and the accompanying drawings.

1010~1050‧‧‧ steps

1‧‧‧ First connection

10‧‧‧screw

11‧‧‧Fixed Department

12‧‧‧Connecting seat

100‧‧‧Thread

102‧‧‧Bottom

120‧‧‧First through hole

122‧‧‧groove

SP‧‧‧accommodation space

2‧‧‧First thread part

3‧‧‧ Unit 1

20‧‧‧Thread

SC1‧‧‧ First direction of rotation

SC2‧‧‧Second rotation direction

4‧‧‧ Unit 2

5‧‧‧Connect unit

6‧‧‧Arthritis correction fixation device

40‧‧‧Second thread part

42‧‧‧Second connection

420‧‧‧The second through hole

FB1‧‧‧distal phalanx

FB2‧‧‧ Middle phalanx

9‧‧‧Auxiliary device

P‧‧‧Substrate

N1‧‧‧ auxiliary unit

N2‧‧‧Control unit

FIG. 1 is an exploded view of the screw 10, the fixing portion 11 and the connecting base 12.

2A and 2B are schematic diagrams and cross-sectional views respectively showing that the screw 10 is engaged with the connecting base 12 through the fixing portion 11.

FIG. 3 is an exploded view of the first connecting portion 1 and the first screw portion 2.

FIG. 4 is a schematic diagram showing that the first threaded portion 2 is sleeved on the screw 10 of the first connecting portion 1 to form the first unit 3.

FIG. 5 is an exploded view of connecting the first unit 3 and the second unit 4 through the connecting unit 5.

FIG. 6 is a schematic diagram showing the arthritis correction fixation device 6.

FIGS. 7 and 8 are schematic diagrams showing the expansion of the distal phalanx FB1 and the middle phalanx FB2 through the arthritis correction fixation device 6 provided between the distal phalanx FB1 and the middle phalanx FB2.

9 is a schematic diagram showing that the distance adjustment between the distal phalanx FB1 and the middle phalanx FB2 can be further assisted by the auxiliary device 9.

10A and 10B respectively show a side view and a top view of FIG. 9.

FIG. 11 is a flowchart illustrating the operation method of the arthritis correction fixation device in another preferred embodiment of the present invention.

Reference will now be made in detail to exemplary embodiments of the present invention, and examples of the exemplary embodiments will be described in the accompanying drawings. Elements/components with the same or similar reference numerals used in the drawings and embodiments are used to represent the same or similar parts.

According to a preferred embodiment of the present invention is an arthritis correction fixation device.

In this embodiment, the arthritis correction fixation device is used to be placed in the fingers of an arthritis patient, and is connected to the distal phalanx and middle phalanx of the finger, but not limited to this.

Please refer to FIGS. 1 to 6. FIGS. 1 to 5 are exploded schematic diagrams of the components of the arthritis correction fixation device 6; FIG. 6 is a schematic diagram showing the arthritis correction fixation device 6. Among them, FIG. 1 is an exploded view of the screw 10, the fixing portion 11 and the connecting base 12; FIGS. 2A and 2B are respectively a schematic view and a cross-sectional view showing the screw 10 is engaged with the connecting base 12 through the fixing portion 11; FIG. 3 is FIG. 4 is an exploded view of the first connecting portion 1 and the first threaded portion 2; FIG. 4 is a schematic diagram showing that the first threaded portion 2 is sleeved on the screw 10 of the first connecting portion 1 to form the first unit 3; FIG. 5 It is an exploded view of connecting the first unit 3 and the second unit 4 through the connecting unit 5.

First, as can be seen from FIG. 6: the arthritis correction fixation device 6 may include the first unit 3, the second unit 4, and the connection unit 5, and the first unit 3 and the second unit 4 are connected to each other through the connection unit 5, resulting in the first The unit 3 and the second unit 4 can move relative to each other. The first unit 3 may include a first connection portion 1 and a first screw portion 2, and the first screw portion 2 has a screw thread 20.

Next, as can be seen from FIGS. 1 to 4: the first connecting portion 1 in the first unit 3 can include a screw 10, a fixing portion 11 and a connecting base 12. The screw 10 may include a threaded portion 100 and a bottom portion 102, and the threaded portion 100 and the bottom portion 102 are connected to each other. The connecting base 12 may include a first through hole 120, a groove 122, and an accommodating space SP. The groove 122 is disposed above the connecting base 12 for accommodating the fixing portion 11 and the bottom 102 of the screw 10 so that the bottom 102 of the screw 10 is engaged with the groove 122 of the connecting base 12 through the fixing portion 11. The accommodating space SP is located below the connecting base 12, and the first through hole 120 is provided corresponding to the accommodating space SP.

After the screw 10 is engaged with the connecting base 12 through the fixing portion 11, the first screw portion 2 can be sleeved on the screw 10 of the first connecting portion 1 to form the first unit 3, as shown in FIGS. 3 and 4. It should be noted that the screw 10 is disposed in the first screw portion 2 and is engaged with the first connecting portion 1, and the rotation directions of the screw portion 100 of the screw 10 and the first screw portion 2 are opposite to each other, for example, clockwise Direction and counterclockwise rotation, but not limited to this.

As shown in FIG. 5, the second unit 4 may have a second screw portion 40 and a second connecting portion 42, and the second screw portion 40 and the second connecting portion 42 are connected to each other or integrally formed. The second connection portion 42 has a second through hole 420. When the second connection portion 42 is accommodated in the accommodating space SP of the first connection portion 1, the first through hole 120 of the first connection portion 1 and the second through hole 420 of the second connection portion 42 can be aligned with each other, and The connection unit 5 is simultaneously passed through the first through hole 120 and the second through hole 420 to connect the first connection part 1 and the second connection part 42 so that the first unit 3 and the second unit 4 can move relative to each other, but not This is the limit.

In fact, the connection unit 5 may be a pivot shaft, so that the first unit 3 and the second unit 4 connected to each other through the connection unit 5 can use the connection unit 5 as an axis to each other Relatively actuated to have a specific angle, but not limited to this.

Next, please refer to FIGS. 7 and 8, which show that the distal phalanx FB1 and the middle phalanx FB2 are supported by the arthritis correction fixation device 6 disposed between the distal phalanx FB1 and the middle phalanx FB2. Open schematic.

As shown in FIGS. 7 and 8, the first threaded portion 2 of the first unit 3 is connected to the distal phalanx FB1 and the middle unit 4 is connected to the middle phalanx FB2. When the first screw portion 2 of the first unit 3 rotates in the first rotation direction (for example, clockwise direction) SC1, since the rotation direction of the screw portion 100 of the screw 10 located in the first screw portion 2 is different from the first screw portion The rotation directions of 2 are opposite to each other, that is, the screw portion 100 of the screw 10 will rotate in a second rotation direction (for example, counterclockwise) SC2 and move away from the first screw portion 2 and drive the first engaged portion Both the connecting portion 1 and the second unit 4 connected to the first connecting portion 1 move away from the first threaded portion 2, thereby adopting the method of joint distraction to drive the middle phalanx FB2 away from the distal phalanx FB1 , So that the distance between the distal phalanx FB1 and the middle phalanx FB2 is increased to reduce the possibility of rubbing each other, so it can effectively improve the phenomenon of the distal phalanx FB1 and the middle phalanx FB2 rubbing each other to slow down the arthritis caused feeling of pain.

In addition, as shown in FIG. 9, the present invention can further assist the adjustment of the distance between the distal phalanx FB1 and the middle phalanx FB2 through the auxiliary device 9. For example, the auxiliary device 9 may include a substrate P, an auxiliary unit N1 and a control unit N2, and the auxiliary unit N1 and the control unit N2 are disposed on the substrate P. When the distal phalanx FB1 and the middle phalanx FB2 are placed in the space formed by the plurality of first auxiliary units N1 on the base plate P, the control unit N2 may be disposed at the junction of the distal phalanx FB1 and the middle phalanx FB2 (that is, (Finger joint) above, to control the operation of the arthritis correction fixation device disposed between the distal phalanx FB1 and the middle phalanx FB2, but not limited to this. As for FIG. 10A and FIG. 10B, respectively, a side view and a top view of FIG. 9 are shown.

Another preferred embodiment according to the present invention is an operation method of an arthritis correction fixation device.

In this embodiment, the operation method of the arthritis correction and fixation device is used to operate the arthritis correction and fixation device provided in the finger of the arthritis patient, and is connected to the distal phalanx and the middle phalanx of the finger.

The arthritis correction fixation device may include a first unit, a second unit, and a connection unit. The first unit has a first screw portion and a first connecting portion. The second unit has a second screw portion and a second connection portion.

Please refer to FIG. 11, which is a flowchart illustrating the operation method of the arthritis correction fixation device in this embodiment.

As shown in FIG. 11, the operation method of the arthritis correction fixation device may include the following steps: Step 1010: Connect the first connection portion and the second connection portion through the connection unit, so that the first unit and the second unit can move relative to each other; step 1030 : Connect the first unit and the second unit to the distal phalanx and the middle phalanx, respectively; and Step 1050: When the first threaded part rotates, the first connecting part drives the second unit to move away from the first threaded part together To change the distance between the distal phalanx and the middle phalanx.

In practical applications, the first unit may further include a screw, which is disposed in the first threaded portion and is engaged with the first connecting portion, and the rotation directions of the screw and the first threaded portion are opposite to each other. When the first threaded portion rotates in a first direction of rotation (eg, clockwise), the screw rotates in a second direction of rotation opposite to the first direction of rotation (eg, counterclockwise) and away from the first threaded portion Move and drive the first connecting portion and the second unit connected to the first connecting portion to move away from the first threaded portion, so as to increase the distal end by means of joint distraction The distance between the phalanx and the middle phalanx makes the distal phalanx and the middle phalanx less likely This friction can effectively reduce the pain caused by finger arthritis.

In practical applications, the first connection portion and the second connection portion may have a first through hole and a second through hole, respectively. The first connection portion may have an accommodating space for accommodating the second connection portion. When the second connecting portion is accommodated in the accommodating space of the first connecting portion, the first through hole of the first connecting portion and the second through hole of the second connecting portion can be aligned with each other, and the connecting unit can pass through the first The through hole and the second through hole are used to connect the first connection portion and the second connection portion, so that the first unit and the second unit can move relative to each other, but not limited to this.

Compared with the prior art, when the patient's finger suffers from arthritis, the arthritis correction fixation device and its operating method of the present invention can be set in the patient's finger and connected between the distal phalanx and the middle phalanx, and can be seen by the patient The actual needs of the joint distraction (Joint distraction) method to adjust the distance between the distal phalanx and the middle phalanx, so that the distal phalanx and the middle phalanx can be relatively extended to avoid the distal phalanx and the middle phalanx Rubbing against each other, it can effectively reduce the pain caused by the patient's finger movement.

With the above detailed description of the preferred embodiments, it is hoped that the features and spirit of the present invention can be described more clearly, rather than limiting the scope of the present invention with the preferred embodiments disclosed above. On the contrary, the purpose is to cover various changes and equivalent arrangements within the scope of the patent application of the present invention.

1: The first connection

100: threaded part

120: first through hole

SP: accommodating space

2: the first threaded part

3: Unit 1

20: thread

4: Unit 2

5: connection unit

6: Arthritis correction fixation device

40: Second thread part

42: Second connection

Claims (3)

An arthritis correction and fixation device for connecting a distal phalanx and a middle phalanx of a finger. The arthritis correction and fixation device includes: a first unit connected to the distal phalanx and having a first threaded portion and a A first connecting portion; a second unit connecting the middle phalanx and having a second threaded portion and a second connecting portion; and a connecting unit, the first connecting portion and the second connecting portion are through the connecting unit Connected to each other, so that the first unit and the second unit can move relative to each other; wherein, when the first threaded portion rotates, the first connecting portion drives the second unit together away from the first threaded portion Move to change the distance between the distal phalanx and the middle phalanx, the first unit further includes a screw, the screw is disposed in the first threaded portion and is engaged with the first connection portion, and the screw The rotation directions of the first threaded portion are opposite to each other. When the first threaded portion rotates in a first rotation direction, the screw rotates in a second rotation direction opposite to the first rotation direction and away from the The direction of the first threaded portion moves, and the first connecting portion engaged with it and the second unit connected to the first connecting portion move away from the first threaded portion, thereby increasing the distance The distance between the end phalanx and the middle phalanx. The arthritis correction and fixation device as described in item 1 of the patent application scope, wherein the first connection portion has a receiving space for accommodating the second connection portion. The arthritis correction fixation device as described in item 2 of the patent application scope, wherein the first The connecting portion has a first through hole and the second connecting portion has a second through hole. When the second connecting portion is received in the accommodating space of the first connecting portion, the first through hole and the first through hole The two through holes are aligned with each other, and the connecting unit passes through the first through hole and the second through hole to connect the first connecting portion and the second connecting portion.

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