CN102961179A - Universal locking and pressurizing bone plate - Google Patents

Abstract

The invention belongs to medical equipment, and particularly discloses a universal locking and pressurizing bone plate. The universal locking and pressurizing bone plate is characterized in that a plurality of universal locking holes are formed in the head part of the bone plate; both the head part and the rod part of the bone plate are provided with a plurality of Kirschner wire holes; and the tail part of the bone plate is provided with combination holes formed by partly overlapping pressurizing hole slots and the locking holes. The universal locking holes of the universal locking and pressurizing bone plate allow locking screws to be set at certain angles in all directions away from the axis and the angles are 0 to 15 degrees. The universal locking and pressurizing bone plate disclosed by the invention can select an angle in the range of plus and minus 15 degrees or a preset fixed angle by a tool during operation so as to conveniently select a fixing method according to a fracture fragment. Meanwhile, the Kirschner wire holes are used for temporary fixation of the bone plate, so that the stability of a product is improved so as to ensure the success of operations and reduce pain of patients. The universal locking and pressurizing bone plate has a reasonable structure, is simple to manufacture and flexible to use, has an ideal effect and the advantages of large embedded direction selection range and good locking effect.

Description

The universal lock pressurized bone plate

Technical field

The invention belongs to medical mechanical domain, specifically a kind of universal lock pressurized bone plate.

Background technology

Be used for clinically locking bone fracture plate system fixing in the orthopaedics and mainly be made of lock screw and steel plate, we are referred to as the locking steel plate screw system.In the locking steel plate screw system, the angle between lock screw and the steel plate is predefined.For so that the lock screw in the implantable bone has best fixed effect, then require the lock screw must be by in the specific direction implantable bone; Because the fracture damaged portion is different, and the skeletal shape between the Different Individual there are differences, therefore in clinical practice, often there is implantation direction and the best inconsistent contradiction of direction of implanting that sets between lock screw and the steel plate in this locking steel plate screw system, affects surgical effect.

Summary of the invention

The objective of the invention is in order to overcome the deficiency of existing locking bone fracture plate system, for the doctor provides a kind of universal lock pressurized bone plate that can select easily according to sclerite the more flexibility and reliability of fixing means.

The technical solution adopted in the present invention is:

A kind of universal lock pressurized bone plate is characterized in that: at the blade plate head several universal lock holes are set, head and bar section all arrange several Kirschner wire holes, and the afterbody setting is by pressurization hole slot and the overlapping combined hole that forms of lock hole part.

Universal lock of the present invention hole allows lock screw in the abaxial all directions certain angle to be set, and angle is 0～15 °.

Universal lock of the present invention hole is combined by band taper thread hole and arc-shaped slot, and band taper thread hole is comprised of arcuation counterbore and taper thread hole, and taper thread hole tapering is 0～30 °; Arc-shaped slot is by four uniform combining of circular arc.

The present invention uses the track motility that the universal lock technology can provide lock screw to depart from the blade plate axis, thereby allows the fixing of special fractures piece, and the expansion screw angle can provide fixing to a series of classification of fracture and select.Especially for osteoporosis, labile fracture of distal, particularly involve articular surface fracture and can firmly keep and reset, avoid screw to enter articular cavity, be conducive to suffer from the limb early functional exercise.

Universal locking fracture bone plate of the present invention can select by instrument in art ± 15 ° of scopes in angulation or predefined fixedly angulation, thereby conveniently select fixing means according to sclerite.Simultaneously, by utilizing the Kirschner wire hole to be used for the temporary fixed of blade plate, increase product stability, thereby guaranteed successful surgery, reduced the patient suffering.The present invention is rational in infrastructure, makes simply, uses flexibly, and is satisfactory for result, has and implants the advantage that the set direction scope is large, locking effect is good.

Description of drawings

Fig. 1 is the embodiments of the invention structural representations.

Fig. 2 is the universal lock pore structure sketch map of Fig. 1.

Fig. 3 is the F-F cutaway view of Fig. 2.

Fig. 4 is the sketch map of the Limited contact structure of blade plate.

Fig. 5 is the cutaway view of A-A among Fig. 4.

Fig. 6 is the structural representation that Universal locking fracture bone plate of the present invention and lock screw cooperate.

Fig. 7 is the left view of Fig. 6.

The specific embodiment

Embodiment as shown in Figure 1, a kind of universal lock pressurized bone plate arranges severaluniversal lock holes 1 atblade plate 5 heads, and head and bar section all arrange several Kirschnerwire holes 2, and the afterbody setting is by pressurization hole slot and the overlapping combined hole that forms 3 of lock hole part.

The Kirschnerwire hole 2 of bar of the present invention section is symmetric, thus increase stability.

Shown in Fig. 2,3, universal lock of thepresent invention hole 1 is combined by bandtaper thread hole 11 and arc-shaped slot 12, bandtaper thread hole 11 is comprised of arcuation counterbore 111 and taper thread hole 112, and taper thread hole 112 taperings are 0～30 °, and arc-shaped slot 12 is by four uniform combining of circular arc.

Such as Fig. 2, Fig. 6, shown in Figure 7, universal lock of thepresent invention hole 1 allowslock screw 6 in the abaxial all directions certain angle to be set, and angle is 0～15 °.

Shown in Fig. 4,5, the blade plate of the present invention back side arranges several depression shapeLimited contact structures 4, to reduce the contact area of blade plate and sclerotin, reach and reduce blade plate to the impact of cortical bone blood flow, limited the blood vessel wound, reach the effect of effective protection blood confession, thereby reduce the generation of cortical necrosis and Second fracture, promote the healing of fracture;Limited contact structure 4 of the present invention is circular arc, and left-right symmetric distributes.

When the present invention performs the operation, after the reduction of the fracture, first in Kirschnerwire hole 2, carry out the temporary fixed of Universal locking fracture bone plate by instrument, relend assistant engineer's tool and select angulation or predefined fixedly angulation in ± 15 ° of scopes, supportinglock screw 6 is implanted in the universal lock pressurized bone plate of the present invention.

Claims (8)

1. universal lock pressurized bone plate, it is characterized in that: at the blade plate head several universal lock holes are set, head and bar section all arrange several Kirschner wire holes, and the afterbody setting is by pressurization hole slot and the overlapping combined hole that forms of lock hole part.

2. universal lock pressure bone setting version according to claim 1 is characterized in that: the universal lock hole allows lock screw in the abaxial all directions certain angle to be set, and angle is 0～15 °.

According to claim 1 with 2 described universal lock pressure bone setting versions, it is characterized in that: the universal lock hole is combined by band taper thread hole and arc-shaped slot.

4. universal lock pressurized bone plate according to claim 3 is characterized in that: band taper thread hole is comprised of arcuation counterbore and taper thread hole, and taper thread hole tapering is 0～30 °.

5. according to claim 3 or 4 described universal lock pressurized bone plates, it is characterized in that: arc-shaped slot is by four uniform combining of circular arc.

6. universal lock pressurized bone plate according to claim 1, it is characterized in that: the Kirschner wire hole of bar section is symmetric.

7. universal lock pressurized bone plate according to claim 1 is characterized in that: the blade plate back side arranges depression shape Limited contact structure.

8. universal lock pressurized bone plate according to claim 7, it is characterized in that: the Limited contact structure is circular arc, and left-right symmetric distributes.

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