Distal humeral outer plate

A bone plate and humerus technology, applied in the field of medical devices, can solve the problems of unable to cross the pulley, hit the bottom of the inner lower corner of the pulley, unable to cooperate with the medial plate to hold the pulley at the same time, and unable to hit the humeral capitulum area, etc. The effect of reducing the loss of one reduction, saving operation time, and convenient operation

Pending Publication Date: 2018-06-01
SHANGHAI KINETIC MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For existing double plate fixation methods (such as Figure 1-3 and Figure 1-4 ), there will be a blind area no matter whether vertical or parallel boards are used (such as Figure 1-2 As shown, areas A and B are blind areas, where A area is the trochlear joint, and B area is the small head of the humerus). Although the vertical plate can fix the pulley, the screws on the outer plate cannot cross the pulley and hit the inner lower corner of the pulley bottom of
However, the parallel plate screws cannot reach the small head of the humerus, and the main body of the outer plate is placed behind the distal end of the humerus, so it does not play the role of pushing the pulley from the outside during fixation, so it cannot cooperate with the inner plate to clamp the pulley at the same time effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] refer to diagram 2-1 , Figure 2-2 , Figure 3-1 , Figure 3-2 , the distal humeral lateral bone plate includes a head part 1 and a stem part 2, the head part and the stem part are integrated, the head part includes a head body 1-1 and extends from the back of the head body The flank 1-2 two parts,

[0050] In this example, refer to diagram 2-1 and Figure 2-2 , the main body of the head 1-1 is attached to the lateral ridge of the distal humerus, and the wings 1-2 are attached to the posterolateral bone surface of the distal humerus. Consistent surface curvature for increased fixation effect. There are four locking holes 1-3 on the main body of the head, and a locking screw of sufficient length is driven through a specific space at an angle to cross the pulley. Insert locking screws of sufficient length to treat multiple fractures of the capitellum, even comminuted fractures. In this embodiment, through the combined use of locking holes and locking screws, it ...

Embodiment 2

[0059] refer to Pic 4-1 , Figure 4-2 , Figure 5-1 , Figure 5-2 ,, This embodiment is an adjustment made on the basis of Embodiment 1.

[0060] Specifically, in this embodiment, the distal humerus lateral bone plate belongs to the short plate, refer to diagram 2-1 , Figure 2-2 , Figure 3-1 , Figure 3-2 Compared to the long plate, the head part is the same as the long plate, the difference is that the stem part 2 does not need to be twisted posteriorly under the deltoid tuberosity, and the tail does not extend to the proximal humerus.

[0061] The locking and pressurizing holes 2-4 arranged along the length direction on the bar plate body have the same arrangement direction and structure as the long plate, except that the number is reduced. Figure 5-1 and Figure 5-2 In the case of the use of the distal humerus lateral bone plate and the distal humeral medial bone plate, a stable vault structure can be formed by placing the plates in parallel.

[0062] In this ...

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Abstract

The invention provides a distal humeral outer plate which comprises a head component and a rod component. The head component and the rod component are of integral structures, and the head component isfixedly attached to distal humeral outer ridges and outer rear bone surfaces; head screws are in angular designs, capitulum humeri and traversing pulleys can be simultaneously fixed by the aid of thehead screws, and effects of clamping the pulleys from the outer side can be realized. The rod component extends towards proximal humeri along the humeral outer ridges and is fixedly attached to humeral shafts. The distal humeral outer plate has the advantages that the integral structure of the distal humeral outer plate is in an anatomic form design, the rod component made of long steel plates can be rearwards twisted below deltoid tuberosity, the tail of the rod component further extends to the proximal humeri, accordingly, the deltoid tuberosity can be effectively avoided, deltoid dead points do not need to be peeled off in surgical procedures, soft tissues can be protected, the surgical operation difficulty can be lowered, and the surgical time can be saved; the distal humeral outer plate can be used with a distal humeral inner plate, the distal humeral outer plate and the distal humeral inner plate can be fixed by the aid of parallel plates, arch crown structures between internaland external columns can be formed, and arch crown sample stabilization mechanisms can be formed.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a novel distal humerus lateral bone plate. Background technique [0002] The human humeral shaft is in the shape of a cylinder as a whole, and the distal end is divided into the medial and lateral branches of the humerus, which look like a flat and wide fan. There is an angle of forward tilt with the axis of the humerus, and the condyle of the humerus is thin, so fractures are prone to occur (such as Figure 1-1). Distal humerus fracture is one of the common fractures of the elbow. In recent years, with the increase of traffic accidents and the aging of society, the incidence rate is on the rise. Fractures of the distal humerus mainly include supracondylar, intercondylar, small head and simple fractures involving the medial and medial condyles, etc. This part has anatomical particularity and complexity. In addition, due to osteoporosis, comminution of the joint and metaph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/80
CPCA61B17/8057A61B17/8061
Inventor 向明佘君毅余俊瑶彭豪
Owner SHANGHAI KINETIC MEDICAL
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