CN216962597U

CN216962597U - Pi-shaped bracket for protecting knee joint

Info

Publication number: CN216962597U
Application number: CN202122974123.3U
Authority: CN
Inventors: 肖存款
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-07-15
Anticipated expiration: 2031-11-30

Abstract

The embodiment of the utility model discloses a knee joint protection pi-shaped bracket which comprises a bone plate and a reinforcing member. The bone plate includes a transverse portion, a first longitudinal portion, and a second longitudinal portion. The first longitudinal portion and the second longitudinal portion are both formed by extending one end of the transverse portion to the far end of the tibia along the longitudinal direction, a gap is formed between the first longitudinal portion and the second longitudinal portion, the bone plate is made to form a pi-shaped structure, and universal locking holes are formed in the surfaces of the transverse portion, the first longitudinal portion and the second longitudinal portion respectively. The reinforcing piece is formed by the back of the bone plate in a protruding way, and a reinforcing piece is respectively arranged on the side edge of the joint position of the first longitudinal part and the transverse part and the side edge of the joint position of the second longitudinal part and the transverse part. The utility model fully covers and supports the affected part of the tibia through the bone plate with the pi-shaped structure so as to achieve the effects of reducing stress concentration, avoiding improper covering of the filling part and preventing the compression deformation of the wound, and further improves the stability of the fixation of the bone plate and prevents the fracture of the proximal end of the tibia after the operation by utilizing the arrangement of the fixing piece, thereby effectively providing the requirement of the biomechanical stability of the knee joint.

Description

Pi-shaped bracket for protecting knee joint

Technical Field

The embodiment of the utility model relates to the technical field of surgical operations, in particular to a knee joint protection pi-shaped support.

Background

The knee joint is one of the most important joints for bearing weight, and whether the knee joint is healthy or not directly influences the free movement or not, so that all activities of daily life are related. The symptoms that often occur in degenerative arthritis include soreness and weakness of the knees and stiffness and inflexibility at the popliteal fossa. When the symptoms are aggravated, pain occurs on the inner knee joint surface, the pain can be upwardly drawn to cause waist soreness and backache, the pain can be downwardly spread to cause leg and abdomen pain or ankle pain, the squatting pain is difficult, the quadriceps femoris and cervical muscle gradually shrinks, the knee joint gradually forms inversion deformation, the user cannot walk far, and the knee can be sore when the user sleeps at night.

At present, a tibia high position osteotomy is mostly adopted for knee joint operations, a small bone is cut off at a position which is about five centimeters away from a joint surface at the upper end of the inner side of a tibia on the tibia to form a filling part, a filler is filled in the filling part to force the tibia below the cut part to turn outwards, a mechanical shaft returns to a normal position, and a bone plate is applied to fix the cut bone part until the filling part is healed, so that the inner and outer joints can bear average force.

However, the existing bone plate structure is mostly T-shaped, I-shaped or L-shaped, which can only cover the surface of one of the small regions of the bone, and it cannot effectively provide the requirement of biomechanical stability at the knee joint.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a knee joint protection pi-shaped support to solve the problem that a bone plate structure in the prior art cannot effectively meet the requirement of biomechanical stability of a knee joint.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

according to the embodiment of the utility model, the knee joint protection pi-shaped bracket comprises a bone plate and a reinforcing member, wherein the bone plate comprises a transverse part, a first longitudinal part and a second longitudinal part, the transverse part is the proximal end of a tibia of the bone plate, the first longitudinal part is one end of the transverse part and is formed by extending towards the distal end of the tibia along the longitudinal direction, the second longitudinal part is the other end of the transverse part and is formed by extending towards the distal end of the tibia along the longitudinal direction, a gap is formed between the first longitudinal part and the second longitudinal part, so that the bone plate forms a pi-shaped structure, universal locking holes are respectively formed on the surfaces of the transverse part, the first longitudinal part and the second longitudinal part, the reinforcing member is formed by protruding from the back of the bone plate, one reinforcing member is respectively arranged on the side edge of the joint position of the first longitudinal part and the transverse part, and the shape of the reinforcing member is matched and clamped with a filling port of the tibia.

Furthermore, the length of the first longitudinal portion is smaller than that of the second longitudinal portion, a plurality of first universal locking holes are uniformly arranged on the surface of the first longitudinal portion along the longitudinal direction, and a plurality of second universal locking holes are uniformly arranged on the surface of the second longitudinal portion along the longitudinal direction.

Furthermore, a gap between the first longitudinal portion and the second longitudinal portion extends from the proximal end of the osteotomy of the first longitudinal portion to the distal end of the osteotomy of the first longitudinal portion along the longitudinal direction, so that the distal end of the osteotomy of the first longitudinal portion and the second longitudinal portion are arranged in a split manner, and the width of the gap at the proximal end of the osteotomy of the first longitudinal portion is the same as the width of the gap at the distal end of the osteotomy of the first longitudinal portion.

Furthermore, the osteotomy distal end of the first longitudinal portion is in a pointed end configuration, and the outer side edge of the pointed end is in a fillet configuration, the osteotomy distal end of the second longitudinal portion is in an outer convex arc end configuration, and the outer side edge of the second longitudinal portion is in an inner concave arc edge configuration.

Further, the upper surface of the second longitudinal portion is chamfered at the distal end of the osteotomy.

Furthermore, universal locking holes in the first longitudinal portion and the second longitudinal portion are arranged in a staggered mode.

Furthermore, a plurality of third universal locking holes which are uniformly arranged are arranged on the surface of the transverse part along the transverse direction.

Furthermore, the width of the first longitudinal portion is smaller than that of the second longitudinal portion, so that the aperture of the first universal locking hole is smaller than that of the second universal locking hole, and a plurality of fourth universal locking holes which are uniformly arranged are arranged on the surface of the transverse portion along the transverse direction, so that the fourth universal locking hole positioned at the proximal end of the osteotomy of the first longitudinal portion is the same as that of the first universal locking hole, and the fourth universal locking hole positioned at the proximal end of the osteotomy of the second longitudinal portion is the same as that of the second universal locking hole.

Further, the reinforcement is the rectangle fixture block of vertical or horizontal setting, and the surface cladding of reinforcement has flexible silica gel layer, the upper surface and the lower surface on flexible silica gel layer are protruding the sand grip that is formed with horizontal setting respectively, the top of sand grip is the sideline setting, and the topside of sand grip is the barb structure at the face bone lamella back, wherein, the reinforcement is along transversely being equipped with a plurality ofly.

Further, a plurality of flexible supporting pads are arranged on the back surface of the bone plate.

The embodiment of the utility model has the following advantages: through setting up by the horizontal part, first vertical part and second vertical part constitute the hone lamella of pi-shaped structure, through universal locking hole on the hone lamella, fix the hone lamella on the shin bone, make the horizontal part be located the top of shin bone filler hole, first vertical part and second vertical part are located the below of shin bone filler hole, thereby make the hone lamella can fully cover and support in the shin bone affected part, and combine the first vertical part and the second vertical inter-part space structure, in order to reach and reduce stress concentration, avoid improper cover filler part and prevent the efficiency of wound compressive deformation, and simultaneously, utilize the setting of mounting, can be through going into the shin bone filler hole with the mounting card, with further improve the fixed stability of hone lamella, prevent postoperative shin bone near-end fracture, thereby provide the biomechanics stability demand of knee joint department effectively.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, should still fall within the scope of the present invention.

Fig. 1 is a schematic view of an overall structure of a pi-shaped knee joint protection bracket according to an embodiment of the utility model;

fig. 2 is a schematic back structural view of a pi-shaped knee joint protection bracket according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a reinforcement member for protecting a pi-shaped knee joint according to an embodiment of the present invention.

In the figure: 1. a bone plate; 11. a transverse portion; 12. a first longitudinal portion; 13. a second longitudinal portion; 14. a support pad; 2. a reinforcement; 3. a void; 4. a first universal locking hole; 5. a second universal locking hole; 6. a third universal locking hole; 7. a fourth universal locking hole; 8. a flexible silicone layer; 9. and (4) raised strips.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the utility model will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the utility model and that it is not intended to limit the utility model to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, the embodiment of the utility model provides a knee joint protection pi-shaped bracket which comprises a bone plate 1 and a reinforcing member 2. The bone plate 1 comprises a transverse portion 11, a first longitudinal portion 12 and a second longitudinal portion 13. The transverse part 11 is the proximal tibia end of the bone plate 1, the first longitudinal part 12 is one end of the transverse part 11 and extends to the distal tibia end along the longitudinal direction, the second longitudinal part 13 is the other end of the transverse part 11 and extends to the distal tibia end along the longitudinal direction, and a gap 3 is formed between the first longitudinal part 12 and the second longitudinal part 13, so that the bone plate forms a pi-shaped structure. Wherein, the first longitudinal portion 12 and the second longitudinal portion 13 are disposed closely adjacent to each other, so that the width of the gap 3 is narrower, and the affected part can be observed just. Meanwhile, the length of the first longitudinal portion 12 is smaller than that of the second longitudinal portion 13, so that the first longitudinal portion 12 is attached to the outer side of the tibia, and the second longitudinal portion 13 is attached to the inner side of the tibia. The gap 3 between the first longitudinal portion 12 and the second longitudinal portion 13 extends from the proximal end of the first longitudinal portion 12 to the distal end of the first longitudinal portion 12 along the longitudinal direction, so that the distal end of the first longitudinal portion 12 and the second longitudinal portion 13 are separated, and the width of the gap 3 at the proximal end of the first longitudinal portion 12 is the same as the width of the gap 3 at the distal end of the first longitudinal portion 12. Through the setting of above-mentioned first vertical portion 12 and second vertical portion 13, after fixing bone plate 1 in the shin bone affected part, can disperse stress effectively to utilize its pi shape structure, make horizontal portion 11 be located the top of shin bone filling opening, first vertical portion 12 and second vertical portion 13 are located the below of shin bone filling opening, thereby make bone plate 1 can fully cover and support in the shin bone affected part, effectively prevent wound pressurized deformation.

Preferably, the osteotomy distal end of the first longitudinal portion 12 is in a tip configuration, and the outer side edge of the tip is in a fillet configuration, the osteotomy distal end of the second longitudinal portion 13 is in a convex arc end configuration, and the outer side edge of the second longitudinal portion 13 is in a concave arc side configuration, wherein the upper surface of the second longitudinal portion 13 is in a chamfer configuration at the osteotomy distal end. Through the arrangement of the structure, the problem of stress concentration is further relieved by utilizing the angle guiding structure and the arc-shaped structure.

As described above, the universal locking holes are formed in the surfaces of the lateral portion 11, the first vertical portion 12, and the second vertical portion 13, respectively. Specifically, a plurality of first universal locking holes 4 are uniformly arranged on the surface of the first longitudinal portion 12 along the longitudinal direction, a plurality of second universal locking holes 5 are uniformly arranged on the surface of the second longitudinal portion 13 along the longitudinal direction, and since the length of the first longitudinal portion 12 is smaller than that of the second longitudinal portion 13, preferably, three first universal locking holes 4 are arranged on the surface of the first longitudinal portion 12, and five second universal locking holes 5 are arranged on the surface of the second longitudinal portion 13. Because the second longitudinal portion 13 is subjected to a larger force than the first longitudinal portion 12, the width of the first longitudinal portion 12 is smaller than the width of the second longitudinal portion 13, and the aperture of the first universal locking hole 4 is smaller than the aperture of the second universal locking hole 5. In addition, a plurality of third universal locking holes 6 which are uniformly arranged are arranged on the surface of the transverse part 11 along the transverse direction, and a plurality of fourth universal locking holes 7 which are uniformly arranged are arranged on the surface of the transverse part along the transverse direction, wherein the fourth universal locking holes 7 are arranged close to the first longitudinal part 12 and the second longitudinal part 13, so that the diameter of the fourth universal locking hole 7 which is positioned at the osteotomy proximal end of the first longitudinal part 12 is the same as that of the first universal locking hole 4, and the diameter of the fourth universal locking hole 7 which is positioned at the osteotomy proximal end of the second longitudinal part 13 is the same as that of the second universal locking hole 5. Through the arrangement of the structure, the bone nail penetrates through the universal locking hole to fix each part of the bone plate 1 on the appointed surface of the tibia, and thicker bone nails can be driven into the second universal locking hole 5 and part of the fourth universal locking hole 7 to fix the bone plate and the bone. It should be noted that the inner wall of each universal locking hole of the present embodiment is a smooth surface or has a threaded structure.

Preferably, the universal locking holes of the first longitudinal portion 12 and the second longitudinal portion 13 are staggered. Through the arrangement of the structure, the first longitudinal part 12 and the second longitudinal part 13 are more stably fixed on the tibia.

Referring to fig. 2 and 3, the reinforcement 2 is formed by protruding the back of the bone plate 1, and a reinforcement 2 is disposed on the side of the joint of the first longitudinal portion 12 and the transverse portion 11, and the reinforcement 2 is adapted to the tibia filling opening. Specifically, the reinforcing member 2 is a rectangular block disposed longitudinally or transversely, and preferably, the reinforcing member 2 is provided in plurality in the transverse direction. Through the setting of this structure, utilize reinforcing member 2 card to go into in the shin bone filler hole, further improve the stability that bone plate 1 fixed on the shin bone to avoid postoperative shin bone near-end fracture. Wherein, the surface cladding at reinforcement 2 has flexible silica gel layer 8 to at the protruding sand grip 9 that is formed with horizontal setting that stretches respectively of the upper surface and the lower surface on flexible silica gel layer 8, the top of sand grip 9 is the sideline setting, and the topside of sand grip 9 is the barb structure towards the hone lamella 1 back. Through the setting of flexible silica gel layer 8, avoid reinforcement 2 direct and shin bone affected part contact, all give certain protection to hone lamella and patient's shin bone, avoid causing the operation discomfort. Meanwhile, the barb-shaped convex strips 9 on the flexible silica gel layer 8 can prevent the reinforcing piece 2 from being shifted after being clamped, so that the stability of fixing the bone plate 1 and the tibia is further improved.

One preferred embodiment is: be equipped with the flexible supporting pad 14 of a plurality of on the back of hone lamella 1, utilize the setting of supporting pad 14, avoided hone lamella 1 and shin bone direct contact, remain the clearance between messenger's hone lamella 1 and the shin bone to better promotion fracture healing.

In the embodiment of the utility model, the bone plate 1 with the pi-shaped structure formed by the transverse part 11, the first longitudinal part 12 and the second longitudinal part 13 is arranged, the bone plate 1 is fixed on the tibia through the universal locking hole on the bone plate 1, the transverse part 11 is positioned above the tibia filling opening, and the first longitudinal part 12 and the second longitudinal part 13 are positioned below the tibia filling opening, so that the bone plate 1 can fully cover and support the affected part of the tibia, and the effects of reducing stress concentration, avoiding improper covering of the filling part and preventing wound compression deformation are achieved by combining the gap structure between the first longitudinal part 11 and the second longitudinal part 12, meanwhile, by utilizing the arrangement of the fixing piece 2, the fixing stability of the bone plate 1 can be further improved by inserting the fixing piece 2 into the tibia filling opening, the proximal end fracture of the tibia after operation is prevented, and the requirement of the biomechanical stability at the knee joint is effectively provided.

Although the utility model has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.

Claims

1. A pi-shaped bracket for protecting knee joint is characterized in that: the knee joint protection pi-shaped bracket comprises a bone plate and a reinforcing member, wherein the bone plate comprises a transverse part, a first longitudinal part and a second longitudinal part, the transverse part is the proximal tibia end of the bone plate, the first longitudinal part is one end of the transverse part and is formed by extending towards the distal tibia end along the longitudinal direction, the second longitudinal part is the other end of the transverse part and is formed by extending towards the distal tibia end along the longitudinal direction, a gap is formed between the first longitudinal part and the second longitudinal part, so that the bone plate forms a pi-shaped structure, universal locking holes are formed in the surfaces of the transverse part, the first longitudinal part and the second longitudinal part respectively, the reinforcing member is formed by protruding stretching of the bone plate at the back, a reinforcing member is arranged on the side edge of the joint position of the first longitudinal part and the second longitudinal part with the transverse part respectively, and the shape of the reinforcing member is matched and clamped with a filling port of the tibia.

2. The pi-shaped knee joint protection bracket according to claim 1, wherein: the length of the first longitudinal portion is smaller than that of the second longitudinal portion, a plurality of first universal locking holes are uniformly arranged on the surface of the first longitudinal portion along the longitudinal direction, and a plurality of second universal locking holes are uniformly arranged on the surface of the second longitudinal portion along the longitudinal direction.

3. The pi-shaped knee joint protection bracket according to claim 2, wherein: the gap between the first longitudinal portion and the second longitudinal portion extends from the osteotomy proximal end of the first longitudinal portion to the osteotomy distal end of the first longitudinal portion along the longitudinal direction, so that the osteotomy distal end of the first longitudinal portion and the second longitudinal portion are arranged in a split manner, and the width of the gap at the osteotomy proximal end of the first longitudinal portion is the same as the width of the gap at the osteotomy distal end of the first longitudinal portion.

4. The pi-shaped knee joint protection bracket according to claim 3, wherein: the osteotomy distal end of first indulging portion is most advanced setting, and most advanced outside limit is the fillet structure, the osteotomy distal end of second indulging portion is the arc end setting of evagination, and the outside limit of second indulging portion is the arc limit structure of indent.

5. The pi-shaped knee joint protection bracket according to claim 4, wherein: the upper surface of the second longitudinal portion is chamfered at the distal end of the osteotomy.

6. The pi-shaped knee joint protection bracket according to claim 2, wherein: the universal locking holes on the first longitudinal portion and the second longitudinal portion are arranged in a staggered mode.

7. The pi-shaped knee joint protection bracket according to claim 2, wherein: and a plurality of third universal locking holes which are uniformly arranged are arranged on the surface of the transverse part along the transverse direction.

8. The pi-shaped knee joint protection bracket according to claim 2, wherein: the width of the first longitudinal portion is smaller than that of the second longitudinal portion, so that the aperture of the first universal locking hole is smaller than that of the second universal locking hole, a plurality of fourth universal locking holes are uniformly arranged on the surface of the transverse portion in the transverse direction, the fourth universal locking hole located at the proximal end of the first longitudinal portion osteotomy is the same as that of the first universal locking hole, and the fourth universal locking hole located at the proximal end of the second longitudinal portion osteotomy is the same as that of the second universal locking hole.

9. The pi-shaped knee joint protection bracket according to claim 1, wherein: the reinforcing member is the rectangle fixture block of vertical or horizontal setting, and the surface cladding of reinforcing member has flexible silica gel layer, the upper surface and the lower surface on flexible silica gel layer are protruding respectively to stretch and are formed with the sand grip of horizontal setting, the top of sand grip is the sideline setting, and the topside of sand grip is the barb structure towards the hone lamella back, wherein, the reinforcing member is along transversely being equipped with a plurality ofly.

10. The pi-shaped knee joint protection bracket according to claim 1, wherein: the back of the bone plate is provided with a plurality of flexible supporting pads.