CN2390564Y

CN2390564Y - H shape arch bridge type bone fracture plate

Info

Publication number: CN2390564Y
Application number: CN 99206194
Authority: CN
Inventors: 阎德强
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-03-28
Filing date: 1999-03-28
Publication date: 2000-08-09
Anticipated expiration: 2009-03-28

Abstract

The utility model relates to a new-type bone connecting plate which can fix the front and outer sides of a bone fracture. The shape of the structure of the utility model is like an 'H'. The two sides of the new-type bone connecting plate are plate closed to bones, the middle part of the new-type bone connecting plate is double arch bridges integrated by connection, when the double arch bridges are contacted with bones, the shape is like a saddle. When the bone is fixed, the plates closed to the bones at the two sides are crossed on the bone, and the plates are closed with the bone in a tangent line position, which can relieve the compression to bone and is also favorable for calluses to grow. The plates closed to the bones at the two sides of the connecting position of the arch bridges are respectively provided with pressurizing fixing holes which can pressurize the broken end of the fracture in a double way. The two sides are fixed, and the breaking force is mutually prevented, and the utility model has the advantages of bending resistance, rotation resistance and strong fixation. Functional exercises can be enforced to accelerate the union of the fracture.

Description

H shape arch (bridge) type blade plate

This utility model belongs to medical field, more precisely is a big technological improvement that belongs to the medical operating internal fixation apparatus, and its name is called H type arch (bridge) type blade plate.

At present, in the technology of existing treatment fracture of shaft of femur, the blade plate of usefulness clinically, general steel plate is poor because of bending strength, very easily disconnected plate, clinical being close to eliminated.Though compression steel plate is strong, steel plate lower compression induced osteonecrosis easily takes place, disconnected plate of postoperative and steel plate are dispeled the back refracture and are happened occasionally.The anti-effect of revolving of wing, dihedral blade plate bending resistance is strengthened, only be suitable for cross-section and little oblique fracture, existing steel plate is almost bar shaped, the screw of line row shape is fixed in a side of skeleton, particularly for powder smash strand backbone fracture, the bone delay in healing person, the hole that its shearing of the process of limb activity concentrates entirely on nearly fracture site steel plate nails on, generation steel plate fracture of a specified duration.Analyzing its reason is still to lack effective control blade plate offside should roll over the internal fixation apparatus of power.Moreover the postoperative external fixation keeps, and certainly will influence the early ambulant in joint, and unavoidable knee joint is stretched the stiff complication in position and taken place.

The purpose of this utility model is to addressing the above problem, and designs a kind of name and is called H type arch (bridge) type blade plate.It is used in femoral shaft all kinds fracture.That this blade plate has is preceding, the fixing characteristics of the dual forcing screw in the outside, and the bending resistance torsional strength is big, and is reliable and stable.Not only can early loading, and saddle and skeleton be the tangent line position and stick, and can effectively alleviate the compressing to bone, helps the accelerating bone healing of growing into of callus.

The purpose of this utility model is achieved in that blade plate forms by pasting between hone lamella, arch bridge, fixing hole, bridge deep window, " U " shape opening.Likeness in form " H " for two arch bridges link into an integrated entity, is erect for pasting hone lamella in the middle of it in both sides, accumbency likeness in form saddle, the subsides hone lamella of both sides rides preceding, the outside in fracture site fixedly the time with bone, and blade plate is tangent line with bone and contacts, reach the compressing of minimizing, be beneficial to growing into of callus again bone.Paste on the hone lamella both sides has the pressurization hole at the arch bridge connecting portion, can realize the dual pressurization of fracture site in the time of fixedly.The subsides hone lamella of " U " opening both sides can be moulding, to be applicable to the fracture fixation near the femur upper and lower end.Before the fracture, the outside fixing after, when going down on one's knees the joint, the tortuous power that the subsides hone lamella before the bone is produced can be by the suffered stress shielding of subsides hone lamella in the outside, when stretching knee joint its should to roll over power opposite.So warping resistance, anti-rotation effect are strengthened.The strong of fracture site fixed, and both can prevent the steel plate fracture, can implement early functional exercise, accelerating bone healing again.

Below in conjunction with accompanying drawing this utility model is further specified.

Accompanying drawing 1 is an appearance structure sketch map of the present utility model.

Accompanying drawing 2 is an arch bridge of the present utility model portion shape and structure sketch map.

Blade plate shown in Figure 1 is to connect two block-shaped identical subsides hone lamellas (3), (8) formation, likeness in form " H " by arch bridge (4), (6).Two ends are respectively sunk screw fixing hole (1) on the subsides hone lamella, and the both sides of arch bridge are respectively pressurization fixing screw hole (2), are used for the dual press fit that adds of fracture site.Deep window (7) can be looked at the reduction of the fracture straight for the circle rectangular opening between bridge, can carry out fracture fixation through this hole again.The separated attitude of subsides hone lamella of " U " opening both sides is convenient to moulding when being used for femoral shaft upper and lower side fracture fixation.

Blade plate shown in Figure 2 is by arch bridge (4) position bending, related subsides hone lamella (3), (8) and form angle (10), and shape such as saddle, the size of its angle are generally 100 °～120 °.Use in the art and can select, also can pass through the suitable moulding adjustment angle of arch bridge according to the thickness degree of skeleton.

Claims

1 one kinds of H type arch (bridge) type blade plates, form by deep window, " U " opening between subsides hone lamella, arch bridge, fixing hole, pressurization fixing hole, bridge, it is characterized in that the identical subsides hone lamella (3) of structure on two sides shape, (8) connect as one type with intermediary two arch bridges (4), (6), likeness in form " H ".It is staggered that fixing hole on the two subsides hone lamellas is mutual correspondence.Deep window between two arch bridges is the circle rectangle, and two ends are " U " opening.

2, according to the described H type of claim 1 arch (bridge) type blade plate, it is characterized in that arch bridge (4), (6) are the circular arc bending, the subsides hone lamella of related both sides constitutes angle, and its angle is 100 °～120 °.

3,, it is characterized in that used material is nontoxic stainless steel material according to the described H type of claim 1 arch (bridge) type blade plate.