TWM466635U - Bone plate assembly and auxiliary positioning member thereof - Google Patents

Description

Bone plate assembly and its auxiliary positioning member

The present invention relates to an implant, and more particularly to a bone plate assembly for treating a fracture and an auxiliary positioning member thereof.

According to the clinically most commonly used method for treating fractures, a bone plate is used to position a bone plate at the fracture of the bone; however, when the fracture occurs near the joint, it may affect the locking of the nail. The problem of the angle of joint movement of the patient makes the binding angle and position of the bone nail locked into the bone greatly restricted, so that it is easy to provide a stable fixation effect of certain bone blocks, and thus it is easy to cause bone plate due to postoperative activity. Displacement between the bones, which causes the new bone to be skewed or deformed, so that the patient can not recover to the state before the fracture, and even cause side effects such as inconvenience.

To this end, please refer to Fig. 1, which is a conventional bone plate 9 disclosed in the Patent No. M426389 of the Republic of China, "Tibial Plate and Tibial Plate Set". The conventional bone plate 9 has an inner segment. a portion 91, an outer segment portion 92, a claw portion 93 and a plurality of perforations 94, wherein the inner segment portion 91 is a strip-shaped plate body, and the outer segment portion 92 is a curved plate body, the claw portion The portion 93 is formed by two barbs 931 having a tapered end, and the inner segment 91, the outer segment 92 and the claw portion 93 are integrally formed in sequence, and the plurality of perforations 94 are formed in a penetrating shape. The bone plate 9 is locked to a predetermined position of the tibia by a plurality of bone nails (not shown); accordingly, the conventional bone plate 9 can be directly embedded by the two barbs 931 formed at the end The crotch portion of the tibia is inserted so that the claw portion 93 of the bone plate 9 can be stably fixed with the tibia without being locked by the bone nail, thereby improving the aforementioned problem of ineffective treatment.

However, since the claw portion 93 of the conventional bone plate 9 is integrally formed with the outer segment portion 92, the direction in which the claw portion 93 and the tibia are coupled is fixed, and the two can not be relatively adjusted depending on the position of the fracture. The barb 931 does not necessarily penetrate the fracture directly to provide a better auxiliary positioning effect; in addition, the integrally manufactured bone plate 9 must be provided with various specifications to treat the fracture of bones of different parts or different sizes, not only causing the medical unit The inconvenience of material management can also cause pressure on manufacturers to stock up. On the other hand, the conventional bone plate 9 must be bound to the end portion of the bone by the claw portion 93, so it is only suitable for the treatment of the fracture of the joint portion, and the utility is poor.

For the above reasons, conventional implants for treating fractures are necessary for improvement.

The purpose of the present invention is to provide a bone plate assembly which can select an appropriate bone plate and an auxiliary positioning member according to the fracture site and the fracture condition of the patient, and the auxiliary positioning member is arranged to make the bone plate difficult to fix. The fracture can be stably fixed, and the relative position between the auxiliary positioning member and the bone plate can be adjusted, so that the auxiliary positioning member can clamp the bone from any direction to enhance the positioning effect with the bone.

Another object of the present invention is to provide a bone plate assembly which can be matched by two components having different specifications to meet the fracture treatment needs of different parts or different sizes of bones, thereby improving the convenience of material management of medical units and Improve the pressure on manufacturers to stock up.

A further object of the present invention is to provide a bone plate assembly that can be used for fracture treatment of joint parts, and for fracture treatment of non-articular parts, to improve the accuracy of bone joint fixation and its practicality.

Another object of the present invention is to provide an auxiliary positioning member for a bone plate assembly, which can be used with a bone plate, and the auxiliary positioning member can stably fix a fracture portion which is difficult to fix, and is provided by separately positioning auxiliary positioning members. The bone plate can adjust the relative position between the two, so that the auxiliary positioning member can clamp the bone from any direction, thereby enhancing the positioning effect with the bone.

In order to achieve the foregoing objectives, the technical content of the present invention includes: a bone plate assembly comprising: a bone plate having a plurality of perforations; and an auxiliary positioning member having a body, a claw and a coupling hole The bending claw is connected to an end edge of the body, the coupling hole runs through the body and is opposite to one of the perforations of the bone plate; and a plurality of bone nails are coupled to the plurality of perforations of the bone plate, and one of the bones The staple system penetrates the opposing perforations and the coupling holes.

The claw has an extension portion and a latch portion, and one end of the extension portion is connected to the body, and the latch portion is connected to the other end of the extension portion, the extension portion and the latch portion An angle is formed between them.

Wherein, the connection between the extension portion and the latch portion may be curved.

Wherein, the free end of the latch portion may be provided with a slope.

The number of the claws of the auxiliary positioning member may be two; in addition, the side ends of the two claws may be respectively in line with the opposite edge edges of the body.

Wherein, the claw and the body can be integrally formed.

The number of the bonding holes may be plural, and at least two of the bonding holes are opposite to any two perforations of the bone plate.

The present invention further provides an auxiliary positioning component for a bone plate assembly, comprising: a body; a bending claw having an extension portion and a latching portion, one end of the extending portion being connected to the end edge of the body, the card The crotch portion is connected to the other end of the extension portion, the extension portion forms an angle with the click portion; and a coupling hole extends through the body.

Accordingly, the bone plate assembly of the present invention can be stably fixed by the auxiliary positioning member, and the relative position between the auxiliary positioning member and the bone plate can be adjusted. The auxiliary positioning member can clamp the bone from any direction and strengthen the positioning effect with the bone, thereby achieving the effects of improving the surgical efficiency and the therapeutic effect of the fracture.

In addition, the bone plate assembly of the present invention can also be configured by separating the auxiliary positioning member and the bone plate by two members, as long as the two members are respectively provided with different specifications, The treatment needs of fractures of different parts or different sizes of bones can improve the convenience of material management in medical units and improve the pressure of manufacturers to buy goods. At the same time, the bone plate assembly can be applied to the treatment of fractures in joints, and can also be applied to Fracture treatment of non-articular parts can improve the accuracy of bone joint fixation and its practicality.

[this creation]

1‧‧‧ bone plate

1a‧‧‧ inner surface

1b‧‧‧ outer surface

11‧‧‧Perforation

12‧‧‧Threading hole

2‧‧‧Auxiliary positioning parts

21‧‧‧ body

21a‧‧‧ inner surface

21b‧‧‧ outer surface

22‧‧‧claw

221‧‧‧Extension

222‧‧‧Card Department

223‧‧‧Slope

23‧‧‧Combination hole

3‧‧‧ bone nails

31‧‧‧Drilling Department

32‧‧‧ head

B‧‧‧Bone

Θ‧‧‧ angle

[Use]

9‧‧‧ bone plate

91‧‧‧Internal section

92‧‧‧Outside

93‧‧‧ claws

931‧‧‧ Barb

94‧‧‧Perforation

Figure 1: Schematic diagram of a conventional bone plate.

Figure 2: An exploded perspective view of a preferred embodiment of the present invention.

Figure 3: Schematic diagram of the cross section of Figure 2-3.

Fig. 4 is a perspective view showing the three-dimensional structure of the auxiliary positioning member of the preferred embodiment of the present invention.

Figure 5: Schematic diagram (I) of the implementation of the preferred embodiment of the present invention.

Figure 6: Schematic diagram of the implementation of the preferred embodiment of the present creation (2).

In order to make the above and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to FIGS. 2 and 3, which is a preferred embodiment of the present invention, the bone plate assembly generally comprises a bone plate 1, an auxiliary positioning member 2 and a plurality of bone nails 3, the auxiliary positioning member. One end of the 2 can be inserted into the bone B of the patient, the bone plate 1 is opposite to the auxiliary positioning member 2, and the plurality of bone nails 3 can be used to lock the bone plate 1 to the bone B of the patient, and wherein A bone nail 3 passes through the auxiliary positioning member 2 together. Among them, the bone plate assembly of the present invention can be applied to the treatment of fractures in any part. In the present embodiment, the treatment of the Humerus fracture is described as an example, and the tibial plate is correspondingly selected, but not limited thereto.

The bone plate 1 has an opposite inner surface 1a and an outer surface 1b, and the bone plate 1 It is attached to the surface of the bone B of the patient by its inner surface 1a. The bone plate 1 is provided with a plurality of perforations 11 , each of which penetrates the inner surface 1 a and the outer surface 1 b of the bone plate 1 respectively. The inner circumferential surface of each of the perforations 11 is preferably provided with a thread for the plurality of bones. The nails 3 are screwed and positioned; each of the through holes 11 is preferably a counterbore, so that the plurality of bone nails 3 can be screwed and positioned without protruding beyond the outer surface 1b of the bone plate 1. In addition, the bone plate 1 can also be configured with relatively functional holes, vacancies or protrusions according to different requirements, which are not limited by the author; for example, the bone plate 1 of the embodiment There are also a plurality of threading holes 12, each of which penetrates the inner surface 1a and the outer surface 1b of the bone plate 1, respectively, for the steel wire to be wound to help improve the bonding stability between the bone plate 1 and the patient's bone B. .

The auxiliary positioning member 2 includes a body 21, a claw 22 and a coupling hole 23. The body 21 can be attached to the surface of the bone B of the patient, and the claw 22 is partially inserted into the bone B of the patient. The coupling hole 23 is for allowing the above-mentioned bone nail 3 to penetrate, so that the auxiliary positioning member 2 can be combined with the bone plate 1.

More specifically, referring to FIG. 4, the body 21 of the auxiliary positioning member 2 has an opposite inner surface 21a and an outer surface 21b, and the body 21 is attached to the bone B surface of the patient by the inner surface 21a thereof. . The bending claw 22 is connected to the end edge of the body 21, and the bending claw 22 is preferably integrally formed with the body 21 to increase the structural strength of the auxiliary positioning member 2; the number of the bending claws 22 is at least one, and plural The claws 22 can improve the stability of the click with the bone B. In this embodiment, two claws 22 are selected to have the stability of the cassette and the manufacturing convenience. Moreover, the two claws 22 Preferably, the side ends are respectively in contact with the opposite end edges of the body 21 to reduce geometric discontinuities such as corners or sag, thereby avoiding stress concentration, thereby further enhancing the auxiliary positioning member 2 Structural strength.

Referring to FIGS. 4 and 5, the claw 22 of the auxiliary positioning member 2 is connected to the body 21 by an extension portion 221, and is inserted into the bone B of the patient by a latching portion 222; that is, the extension One end of the portion 221 is connected to the body 21, and the latch portion 222 is connected to the other end of the extending portion 221, and an angle θ is formed between the extending portion 221 and the latch portion 222. The angle θ is less than 170. The angle of the angle θ can be adjusted by the tool according to the use requirement; wherein the connection between the extending portion 221 and the latch portion 222 is preferably curved to avoid stress concentration. In addition, the free end of the latch portion 222 can be provided with a slope 223, so that the auxiliary positioning member 2 can more easily insert the latch portion 222 of the claw 22 into the bone B of the patient, which is particularly suitable for implantation. A use case of a cortical bone having a higher hardness; in contrast, when the claw 22 of the auxiliary positioning member 2 is only intended to be implanted into a Cancellous bone having a lower hardness, the click portion 222 The free end can be formed without forming the inclined surface 223, and only a flat cross-sectional shape (as shown in FIG. 6) can be formed to simplify the processing steps of the auxiliary positioning member 2 and reduce the manufacturing cost.

Referring to FIGS. 4 and 5 again, the coupling hole 23 of the auxiliary positioning member 2 extends through the inner surface 21a and the outer surface 21b of the body 21. The inner diameter of the coupling hole 23 is larger than the outer diameter of the bone nail 3, so that the combination The hole 23 can be opposite to one of the perforations 11 of the bone plate 1 and can be inserted through the bone nail 3; accordingly, the body 21 can be axially coupled to the bone plate 3 of the coupling hole 23 with respect to the bone plate 1 Pivot to adjust the angle of the pawl 22 relative to the bone plate 1. The number of the bonding holes 23 may also be plural. After the auxiliary positioning member 2 and the bone plate 1 are adjusted in relative positions, another bone nail 3 is inserted through the other bonding holes 23 to form a positioning, so that the auxiliary positioning is performed. The body 21 of the piece 2 is no longer pivoted relative to the bone plate 1.

Each of the bone nails 3 has an implant portion 31 and a head portion 32 integrally connected to each other. The drilling portion 31 can penetrate through the plurality of perforations 11 of the bone plate 1 and be embedded inside or outside the bone B. The surface of the bone B is fixedly coupled to the corresponding perforation 11 so that the bone plate 1 can be locked by the plurality of bone nails 3 to be positioned at a predetermined position of the patient's bone B; The drilling portion 31 of the third embodiment simultaneously penetrates the through hole 11 of the bone plate 1 and the coupling hole 23 of the auxiliary positioning member 2, so as to lock the auxiliary positioning member 2 by the bone plate 1 when the bone plate 1 is locked. Firmly positioned.

Referring to Figures 2 to 4, the bone plate assembly of the present invention is particularly suitable for the treatment of fractures in the joint; for example, because one end of the tibia and the scapula (Scapula) together form the shoulder joint, and the other end is connected to the tibia (Radius). ) and the ulna (Ulna) together form the elbow joint, Therefore, when the fracture occurs at the end of the tibia or adjacent to the end, the auxiliary positioning member 2 can be inserted into the bone B of the patient with the locking portion 222 of the claw 22, and the auxiliary positioning member 2 is The inner surface 21a of the body 21 is attached to the surface of the bone B of the patient, so that the auxiliary positioning member 2 can form a preliminary position of the fracture of the bone B and the portion to be joined; then one of the perforations 11 of the bone plate 1 is The engaging hole 23 of the auxiliary positioning member 2 is oppositely positioned, and the drilling portion 31 of the bone nail 3 penetrates the through hole 11 and the coupling hole 23 of the opposite position. At this time, the bone plate 1 can be axially opposed to the bone nail 3 The auxiliary positioning member 2 is pivoted to adjust the bone plate 1 to an appropriate position opposite to the bone B, and then the drilling portion 31 of the bone nail 3 is drilled into the bone B until the nail 3 is The head 32 is fixedly coupled to the corresponding through hole 11 so that the bone plate 1 and the auxiliary positioning member 2 can be firmly locked to the surface of the bone B, and the other number of the bone nails 3 are aligned with the other of the bone plate 1 A perforation 11 is used to lock the bone plate 1 to the bone B of the patient.

Accordingly, the auxiliary positioning member 2 can be regarded as an extension of the bone plate 1 for fixing the fracture portion of the bone plate 1 which is difficult to fix, and the relative position between the auxiliary positioning member 2 and the bone plate 1 It can also be adjusted so that the auxiliary positioning member 2 can clamp the bone B from any direction, and almost all the treatment situations of the fracture can be applied, and ensure that the claw 22 of the auxiliary positioning member 2 can directly penetrate the fracture to provide an auxiliary positioning effect; Moreover, as the closer to the end of the bone B, the more difficult the locking of the nail 3 is and the more the limitation of the joint angle, and the bone plate assembly of the present invention, the bone B of the auxiliary positioning member 2 is bound by the claws B. There is no need to lock the nail 3, which not only reduces the difficulty of surgery, but also reduces the muscles or nerves at the joint. In addition, due to the bone plate assembly of the present invention, the auxiliary positioning member 2 and the bone plate 1 are two separate members, so that the two members can be matched with each other to meet different parts or different sizes of bones. The need for fracture treatment facilitates the management of materials in medical units and improves the pressure on manufacturers to stock up.

On the other hand, the bone plate assembly of the present invention is not only suitable for the treatment of the fracture of the joint; that is, the bone plate assembly can also be applied to the treatment of the fracture of the non-articular part, and the auxiliary positioning member 2 firstly localizes the broken bone. , and then the bone plate 1 is locked to enhance the bone B joint The precision of the fixation; or, even without using the auxiliary positioning member 2, only the bone plate 1 and the bone nail 3 can be used to treat the fracture of the non-articular part, so the utility of the bone plate assembly of the present invention is quite high.

In summary, the bone plate assembly of the present invention can select an appropriate bone plate and an auxiliary positioning member according to the fracture site and the fracture condition of the patient, and the bone plate is difficult to be fixed by the auxiliary positioning member. The fracture can be stably fixed, and the relative position between the auxiliary positioning member and the bone plate can be adjusted, so that the auxiliary positioning member can clamp the bone from any direction and strengthen the positioning effect with the bone, thereby achieving the fracture improvement. The efficiency of the operation and the effect of treatment.

The bone plate assembly of the present invention can be divided into two members by using the auxiliary positioning member and the bone plate. As long as the two members are respectively provided with different specifications, they can be matched with each other to meet fractures of bones of different parts or different sizes. The need for treatment can improve the convenience of material management in medical units and improve the pressure on manufacturers to stock up.

The bone plate assembly of the present invention can be applied to fracture treatment of joint parts, and can also be applied to fracture treatment of non-articular parts, which can improve the accuracy of bone joint fixation and its practicability.

Although the present invention has been disclosed by the above-described preferred embodiments, it is not intended to limit the present invention, and it is still within the spirit and scope of the present invention to make various changes and modifications to the above embodiments. The technical scope of the protection is created, so the scope of protection of this creation is subject to the definition of the patent application scope attached.

1‧‧‧ bone plate

1a‧‧‧ inner surface

1b‧‧‧ outer surface

11‧‧‧Perforation

12‧‧‧Threading hole

2‧‧‧Auxiliary positioning parts

21‧‧‧ body

22‧‧‧claw

23‧‧‧Combination hole

3‧‧‧ bone nails

31‧‧‧Drilling Department

32‧‧‧ head

B‧‧‧Bone

Claims (15)

A bone plate assembly comprising: a bone plate having a plurality of through-holes; an auxiliary positioning member having a body, a claw and a coupling hole, the claw being connected to an end edge of the body, the coupling hole A plurality of perforations are inserted through the body and are opposite to one of the perforations of the bone plate; and a plurality of bone nails are coupled to the plurality of perforations of the bone plate, and one of the bone nails is coupled to the opposite perforation and the coupling hole. The bone plate assembly of claim 1, wherein the bending claw has an extension portion and a latch portion, and one end of the extension portion is connected to the body, and the latch portion is connected to the extension portion. The other end of the joint forms an angle between the extension and the click portion. The bone plate assembly of claim 2, wherein the joint between the extension portion and the click portion is curved. The bone plate assembly of claim 2, wherein the free end of the click portion is provided with a slope. The bone plate assembly of claim 1, 2, 3 or 4, wherein the auxiliary positioning member has two claws. The bone plate assembly of claim 5, wherein the side ends of the two claws are respectively in line with the opposite end edges of the body. The bone plate assembly of claim 1, 2, 3 or 4, wherein the claw is integrally formed with the body. The bone plate assembly of claim 1, wherein the number of the coupling holes is plural, wherein at least two of the coupling holes are opposite to any two perforations of the bone plate. An auxiliary positioning component for a bone plate assembly, comprising: a body; a claw having an extension portion and a latch portion, one end of the extension portion being connected to an end edge of the body, the latch portion being connected to the other end of the extension portion, the extension An angle is formed between the portion and the latch portion; and a coupling hole is formed through the body. The auxiliary positioning member of the bone plate assembly according to the ninth aspect of the invention, wherein the joint between the extension portion and the click portion is curved. The auxiliary positioning member of the bone plate assembly of claim 9, wherein the free end of the latch portion is provided with a slope. An auxiliary positioning member for a bone plate assembly according to claim 9, wherein the number of the claws is two. The auxiliary positioning member of the bone plate assembly of claim 12, wherein the side ends of the two claws are respectively in line with the opposite end edges of the body. An auxiliary positioning member for a bone plate assembly according to claim 9, wherein the bending claw is integrally formed with the body. The auxiliary positioning member of the bone plate assembly according to claim 9, wherein the number of the coupling holes is plural.