Bone fracture plate for fixing in all directions

A bone plate, omni-directional technology, applied in the direction of fixator, outer plate, internal bone synthesis, etc., can solve the problems of cumbersome nailing operation and removal operation, low thread locking strength, inability to apply bone plate, etc. And the effect of easy and convenient nail removal, improved thread locking strength, and excellent stability

Active Publication Date: 2015-07-01
CHUANGHUI MEDICAL EQUIP JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of the existing bone-synthesizing mechanisms have some deficiencies in the structural design, and then have the following disadvantages: the angle between the bone screw and the hole plate is relatively fixed, and the doctor cannot screw into the bone in different directions according to different fracture conditions. In order to achieve better stability of the screw, there will be a large angle of blind area during the thread locking process, which will greatly reduce the thread locking strength, and the operation of screwing on and removing the screw is very cumbersome
The application range is narrow, and it cannot be applied to bone plates of various thicknesses; if the bone screw is forcibly adjusted in order to achieve the locking effect, it is easy to cause damage to the thread

Method used

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  • Bone fracture plate for fixing in all directions
  • Bone fracture plate for fixing in all directions
  • Bone fracture plate for fixing in all directions

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] See figure 1 , figure 2 and image 3 , the omnidirectional fixed bone plate of the present invention comprises a locking plate main body 1 made of steel and a universal locking hole 2 provided on the locking plate main body 1, the universal locking hole 2 is a spherical hole, and the universal locking hole 2 The cone angle is 20°, and the hole wall sphericity of the universal locking hole 2 is 3°.

[0035] See figure 2 and image 3 , the hole wall of the universal locking hole 2 is processed with superimposed helical threads 2-1 and intermittent helical grooves 2-2. The nominal diameter of -1 is 5.0mm, the pitch is 0.4mm, and the lead is 0.8mm; the pitch of intermittent spiral groove 2-2 is 2.0mm, and the lead is 12.0mm.

[0036] See figure 2 , image 3 and Figure 4 , the thread profile of the helical thread 2-1 and the helix angle of the intermittent helical groove 2-2 are both triangular.

[0037] See Figure 4 , the thread tooth angle of the helical thr...

Embodiment 2

[0045] The omnidirectional fixed bone plate of the present invention comprises a locking plate main body 1 made of steel and a universal locking hole 2 opened on the locking plate main body 1, and the universal locking hole 2 is a cylindrical hole. The hole wall of the universal locking hole 2 is processed with superimposed spiral threads 2-1 and intermittent spiral grooves 2-2, the helical threads 2-1 and intermittent spiral grooves 2-2 have the same direction of rotation, and the spiral threads 2- The nominal diameter of 1 is 4.9mm, the pitch is 0.3mm, and the lead is 0.6mm; the pitch of intermittent spiral groove 2-2 is 1.5mm, and the lead is 9.0mm. The thread profile of the helical thread 2-1 and the helix angle of the intermittent helical groove 2-2 are both triangular. Both the thread tooth angle of the helical thread 2-1 and the helix angle of the intermittent helical groove 2-2 are 53°.

[0046]The omnidirectional fixed bone plate is used together with the universal l...

Embodiment 3

[0048] The omnidirectional fixed bone plate of the present invention includes a locking plate main body 1 made of steel and a universal locking hole 2 provided on the locking plate main body 1, the universal locking hole 2 is a conical hole, and the universal locking hole 2 is conical. The angle is 22°. The hole wall of the universal locking hole 2 is processed with superimposed spiral threads 2-1 and intermittent spiral grooves 2-2, the helical threads 2-1 and intermittent spiral grooves 2-2 have the same direction of rotation, and the spiral threads 2- The nominal diameter of 1 is 5.1mm, the pitch is 0.5mm, and the lead is 1.0mm; the pitch of intermittent spiral groove 2-2 is 2.5mm, and the lead is 15.0mm. The thread profile of the helical thread 2-1 and the helix angle of the intermittent helical groove 2-2 are both triangular. Both the thread tooth angle of the helical thread 2-1 and the helix angle of the intermittent helical groove 2-2 are 57°.

[0049] The omnidirecti...

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Abstract

The invention relates to the technical filed of medical apparatus and instruments for the department of orthopaedics, in particular to a bone fracture plate for fixing in all directions. The bone fracture plate comprises a locking plate main body and universal locking holes formed in the locking plate main body, and the hole walls of the universal locking holes are provided with superposed spiral threads and interrupted spiral grooves. According to the bone fracture plate, staggered teeth are adopted to achieve the principle of universal, locking nails can be screwed in different directions by a doctor according to different fracture conditions, the better stability can be achieved, the universal without dead zones in any angles and swing in a wide-angle range can be achieved, and thread locking strength is greatly improved.

Description

technical field [0001] The invention relates to the technical field of orthopedic medical instruments, in particular to an omnidirectional fixed bone plate. Background technique [0002] Clinically, in the case of bone detachment, a bone setting mechanism is usually used to assist the treatment. Bone-synthesizing mechanisms are mostly perforated plate-shaped fracture internal fixation devices, and its structure is generally a bone screw threaded with a perforated plate. [0003] However, most of the existing bone-synthesizing mechanisms have some deficiencies in the structural design, and then have the following disadvantages: the angle between the bone screw and the hole plate is relatively fixed, and the doctor cannot screw into the bone in different directions according to different fracture conditions. In order to achieve better stability of the screw, there will be a large angle of blind area during the thread locking process, resulting in a significant reduction in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/80
CPCA61B17/80A61B17/8057
Inventor 钱建锋
Owner CHUANGHUI MEDICAL EQUIP JIANGSU
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