KR20150097278A

KR20150097278A - T-type bone locking plate

Info

Publication number: KR20150097278A
Application number: KR1020140018592A
Authority: KR
Inventors: 김호정; 장종욱; 최문정; 우수헌
Original assignee: (주)메디쎄이
Priority date: 2014-02-18
Filing date: 2014-02-18
Publication date: 2015-08-26

Abstract

Provided is a T-type bone locking plate comprising: one or more insertion grooves for screws which are formed horizontally; one or more insertion grooves for screws which are formed vertically; a T-type plate which is formed vertically and comprises one or more fixing grooves for a spacer; and a spacer which comprises a coupling part of the T-type plate and an insertion part of a fractured bone part.

Description

T-type bone locking plate}

The present invention relates to a T-type bone fixture that minimizes damage to the soft tissues of the proximal tibia and the distal portion of the femur while maintaining the stability of the proximal tibia and distal femur.

In general, the treatment of arthritic knee osteoarthritis includes arthroscopic debridement, proximal tibial osteotomy, femoral osteotomy, partial replacement, and total knee arthroplasty.

In addition, degenerative arthritis is usually limited to the inner side in many cases, the inner articular surface is worn out, it may be bent to the inside. In this case, the proximal tibial osteotomy, which can be performed in mid-knee osteoarthritis where the lesion is localized in the medial compartment of the knee, improves the abnormal alignment of the knee joint due to degenerative changes of the articular cartilage of the femur and tibia, To relieve pain and delay degenerative changes is a good operation.

Herein, the open tibial proximal osteotomy of the tibial proximal tibial osteotomy is easier to perform than the closed tibial osteotomy, and preservation of the proximal tibial osteotomy can reduce the peroneal nerve injury, minimize the deformation of the proximal tibia and prevent shortening of the lower limb.

However, due to the open space of the open tibia proximal tibia (see FIG. 1), there is a case where the T type plate and the fixing screw are broken when receiving the force from the outside, thereby causing a problem of delayed treatment.

Korean Patent Publication No. 10-2009-0036707

The present invention is conceived to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a T-type plate or a fixing screw which is inserted after a surgical operation by inserting a spacer into an open osteotomy for treatment such as a proximal tibia and a distal femur. It is an object of the present invention to provide a T-type bone fixture that prevents fracture and minimizes damage to the soft tissues of the tibia proximal portion and the femur distal portion.

The present invention

At least one screw insertion groove formed in a horizontal direction; At least one screw insertion groove formed in a vertical direction; And a T-type plate including at least one spacer fixing groove formed in a vertical direction; And

Type T-bone fixture including a spacer including a T-type plate engaging portion and a shoulder portion inserting portion.

The T-type bone anchor can be used to fix a proximal tibia having an open tibia or a distal portion of the femur.

The spacer fixing groove has a shape in which the spacer can be coupled by screwing or fitting, and can be formed so as to be able to adjust the joining position of the spacer along the vertical direction.

The spacer fixing grooves may be formed as one groove having a longer length in the vertical direction than the horizontal direction, and may be formed in a shape in which the spacers for fixing spacers are repeatedly formed on both sides or an arc shape in which a female screw is formed is repeatedly formed.

The spacer fixing grooves may be formed of two or more grooves formed at regular intervals in the vertical direction.

The T-type plate may be formed of a metal material, and the insert portion of the spacer may be formed of a porous material.

The insertion portion of the osteotomy portion may have a shape corresponding to the shape of the open osteotomy portion of the proximal tibia or the open osteotomy portion of the distal portion of the femur.

The T-type bone fixture of the present invention prevents fracture of the T-type plate or the fixing screw that occurs after the operation by inserting a spacer coupled with the T-type plate into the osteotomy section opened for treatment such as the proximal tibia portion of the tibia and the distal portion of the femur distal portion. And provides the effect of minimizing the damage of the soft tissues of the proximal tibia and distal femur region.

1 is a view showing a proximal portion of a tibia including an open osteotomy portion in which a conventional T-type bone fixture is made,
2 to 5 are exploded perspective views of T-type bone anchors of the present invention,
6 is a perspective view of one embodiment of a spacer included in a T-type bone fixture of the present invention,
7 is a perspective view of an embodiment of a T-type bone fixture of the present invention,
FIG. 8 is a cross-sectional view illustrating a T-type bone fixture of the present invention in a proximal portion of a tibia.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would unnecessarily obscure the gist of the present invention.

The following description and drawings illustrate specific embodiments in order that those skilled in the art can readily implement the described apparatus and method. Other embodiments may include other variations, both structurally and logically. Unless explicitly required, individual components and functions may be selected generally, and the order of the processes may vary. Portions and features of some embodiments may be included in other embodiments or may be replaced by other embodiments.

As shown in FIGS. 2 to 5, the present invention provides a screwdriver having at least one screw insertion groove 11 formed in a horizontal direction; At least one screw insertion groove (11 ') formed in a vertical direction; A T-type plate (10) comprising at least one spacer fixing groove (12) formed in a vertical direction; And a spacer 20 including a T-type plate engaging portion 21 and a shoulder portion inserting portion 22. As shown in Fig.

2, the T-type plate coupling portion 21 may be provided separately from the spacer 20. In this case, the T-type plate coupling portion 21 21 can be fixed to one end thereof. The T-type plate engaging portion 21 may be integrally formed with the spacer 20, as shown in FIGS.

The T-type bone fixture 100 of the present invention can be preferably used for fixation of the proximal tibia or distal portion of the femur where an open tibia is formed.

The spacer fixing groove 12 has a shape in which the spacer 20 can be coupled by screwing or fitting, and can be formed so as to be able to adjust the joining position of the spacer along the vertical direction.

As shown in FIGS. 3 to 4, the spacer fixing grooves 12 are formed by a single groove having a longer length in the vertical direction than the horizontal direction, and the spacer fixing recesses and protrusions for fixing the spacer are repeatedly formed on both sides, It can be produced in a form in which an arc shape is repeatedly formed. The shape of the concavities and convexities is not particularly limited, and for example, a rectangular shape, a triangular concavo-convex shape, or the like may be employed. In this case, the T-type plate engaging portion 21 of the spacer 20 may have a concavo-convex shape that can be engaged with the spacer fixing groove, or may have a male screw shape.

Further, as shown in FIG. 5, the spacer fixing grooves 12 may be formed of two or more grooves formed at regular intervals in the vertical direction.

The T-type plate is not limited to a specific material, and can be used for medical purposes. Any material can be used as long as it has a strength capable of withstanding the force applied to the bony portion. A representative example is a metal material.

The material to be manufactured is not particularly limited and may be used for medical purposes. Any material can be used as long as it has a strength capable of withstanding the force applied to the bony portion have. In particular, the porous material may be formed of a porous material to help bone formation of the osteotomy, and a material that can be degraded in vivo is preferably used as the porous material.

The shape of the osseous part inserting part 21 is not particularly limited, but it is preferable that the shape of the osseous part inserting part 21 is formed so as not to damage the osseous osseous part, and is formed so as to absorb the force applied to the osseous part.

In particular, as shown in FIG. 6, it is preferable to have a shape corresponding to the shape of the open osteotomy at the proximal tibia or the open osteotomy at the distal portion of the femur, Can be used.

The T-type plate engaging portion 21 of the spacer 20 is formed in a shape corresponding to the spacer insertion groove 12.

The T-type bone fixture of the present invention is obtained by fixing the spacer 20 to the T-type plate 10 shown in Figs. 3 to 5 at an appropriate position and fixing it as shown in Fig. 7, Likewise, the osteotomy portion insertion portion 22 is inserted into the open osteotomy portion of the tibial proximal portion or the open osteotomy portion of the femur distal portion, and the screw is inserted through the horizontal direction insertion slot 11 and the vertical direction insertion slot 11 ' To the bone.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications and variations without departing from the spirit and scope of the invention. Accordingly, it is intended that the appended claims cover all such modifications and variations as fall within the true spirit of the invention.

10: T type plate 11: Horizontal screw insertion groove
11: vertical screw insertion groove 12: spacer insertion groove
20: spacer 21: osteotomy portion insertion portion
22: T type plate engaging portion 23: Fixing groove
30: Yaw bone 100: T type bone fixture

Claims

At least one screw insertion groove formed in a horizontal direction; At least one screw insertion groove formed in a vertical direction; And a T-type plate including at least one spacer fixing groove formed in a vertical direction; And
A T-type bone fixture comprising a spacer including a T-type plate engaging portion and a shoulder portion inserting portion.

The method according to claim 1,
Wherein the torsion bar is used for fixation of a proximal tibia formed with an open tibia or a distal portion of the femur.

The method according to claim 1,
Wherein the spacer fixing groove has a shape in which the spacer can be coupled by screwing or fitting, and is capable of adjusting the joining position of the spacer along the vertical direction.

The method of claim 3,
Wherein the spacer fixing grooves are formed by one groove having a longer length in the vertical direction than the horizontal direction and repeatedly forming concave and convex portions for fixing spacers on both sides or repeatedly forming an arc shape in which a female- .

The method of claim 3,
Wherein the spacer fixing groove is formed by two or more grooves formed at regular intervals in a vertical direction.

The method according to claim 1,
The T-type plate is formed of a metal material; Wherein the insert portion of the spacer is formed of a porous material.

The method according to claim 1,
Wherein the insert portion of the tibial bone has a shape corresponding to the shape of the open tibia of the tibial proximal portion or the open tibia portion of the femur distal portion.