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Combined external fixator for multi-segment open fractures of foot and hand

An open and combined technology, applied in the field of hand bone external fixation bracket, foot, foot bone, hand multi-segment open fracture combined external fixation bracket, can solve the problems of loss of working ability, walking lameness, bone infection and so on , to achieve the effect of convenient external fixation

Active Publication Date: 2018-06-08
哈尔滨杰瑞斯医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 1876, the former Soviet Union llizarrov designed the full-ring external fixation bracket, which belongs to the multi-plane external fixation bracket. It was recognized by the world for its remarkable therapeutic effect in the treatment of open extremity fractures during the Second World War, and is widely used in clinical practice; In the late 1970s, the semi-ring groove type external fixator was developed and successfully applied in the clinical treatment of limb fractures. Especially in the past 25 years, the basic theoretical research on external fixation has continued to deepen, and the external fixation bracket has been valued by orthopedic experts. method, can not achieve satisfactory results
[0003] The existing multiple open fractures of the foot and hand are often treated with: 1. Internal fixation with steel plates. The disadvantage of this fixation method is bone infection; 2. For patients with severe skin and soft tissue injuries, internal fixation or Plaster bandage fixation, but this fixation method often causes displacement of the broken end of the fracture, skin and soft tissue necrosis, bone leakage, and even limb necrosis
Since the bones of the foot and hand are composed of short tubular bones and irregular bones, there are many attachment points of muscles and tendons, if the fracture is not firmly fixed, malunion or bone nonunion occurs, and the fracture does not heal, it will seriously affect the function of the foot and hand. Influence or loss of working ability or walking lameness, accompanied by lifelong pain, so it is urgent to develop a fracture external fixation bracket to meet the needs of clinical work, provide a combined fixation bracket for patients with fractures, and facilitate the smooth recovery of patients with fractures

Method used

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  • Combined external fixator for multi-segment open fractures of foot and hand
  • Combined external fixator for multi-segment open fractures of foot and hand
  • Combined external fixator for multi-segment open fractures of foot and hand

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Experimental program
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specific Embodiment approach 1

[0046] Specific implementation mode one: combine Figure 1 to Figure 27 Describe this embodiment, the combined external fixation bracket for multi-segment open fractures of the foot and hand of this embodiment includes a T-shaped steel needle fixing block 1, a fixing screw 2, a lag screw 6, a rectangular steel needle fixing block 9, and a right-angle steel needle Fixed block 10, long connecting rod 11, concave steel needle fixed block 13, the first spicule fixed body 17, the second spicule fixed body 18, the third spicule fixed body 19 and the fourth spicule fixed body 20, the The first spicule fixture 17, the second spicule fixture 18, the third spicule fixture 19 and the fourth spicule fixture 20 are sequentially mounted on the long connecting rod 11, and the right-angle steel pin fixation block 10. Rectangular steel needle fixing block 9, T-shaped steel needle fixing block 1 and concave steel needle fixing block 13 are sequentially clamped and installed on the first bone sp...

specific Embodiment approach 2

[0047] Specific implementation mode two: combination figure 1 , Figure 13 , Figure 18 , Figure 21 Describe this embodiment, the structure of the first spicule fixer 17, the second spicule fixer 18 and the fourth spicule fixer 20 described in the foot and hand multi-segment open fracture combined external fixation bracket of this embodiment are consistent , including connecting rod 3, one-body lower clamping rod block 4, one-piece upper clamping rod block 8, hexagon socket head cap screw 14, two-body clamping rod block 16 and medium clamping rod block 21, the one-piece lower clamping rod block 4, one-piece upper clamping rod block The structure of clamping bar block 8 and medium clamping bar block 21 is identical, is cuboid shape, and the upper surface and the side of the both sides of the cuboid of one lower clamping bar block 4, one upper clamping bar block 8 and medium clamping bar block 21 are processed with A vertical through hole is provided with a slit 22 facing on...

specific Embodiment approach 3

[0048] Specific implementation mode three: combination figure 2 , image 3 , Figure 4 , Figure 11 Illustrate this embodiment, the third spicule fixer 19 described in the foot and hand multi-segment open fracture combined external fixation bracket of this embodiment includes a connecting rod 3, an integral lower clamping rod block 4, a convex half-head screw 12, a spring 15 and the two-body clamp bar block 16, the lag screw 6 included in the external fixing bracket passes through the two-body clamp bar block 16 and the one-body lower clamp bar block 4, and the end of the lag screw 6 is screwed with a convex semicircular head Screw 12, the spring 15 is arranged between the two-body clamping rod block 16 and the integrated lower clamping rod block 4, the spring 15 is set on the lag screw 6, and the connecting rod is clamped on the integrated lower clamping rod block 4 3. The upper end of the connecting rod 3 is directly connected with a T-shaped steel needle fixing block 1;...

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Abstract

The invention discloses a combined external fixing support for treatment of multi-segmental open fracture of legs and hands and belongs to the technical field of bone treatment instruments. The combined external fixing support comprises a T-shaped steel needle fixing block, set screws, lag screws, a rectangular steel needle fixing block, a right-angle steel needle fixing block, a long connecting rod, a concave steel needle fixing blocks, a first bone needle fixer, a second bone needle fixer, a third bone needle fixer and a fourth bone needle fixer. The first bone needle fixer, the second bone needle fixer, the third bone needle fixer and the fourth bone needle fixer are sequentially mounted on the long connecting rod in a clamped way. The right-angle steel needle fixing block, the rectangular steel needle fixing block, the T-shaped steel needle fixing block and the concave steel-needle fixing block are respectively mounted on the first bone needle fixer, the second bone needle fixer, the third bone needle fixer and the fourth bone needle fixer in a clamped way. The combined external fixing support has the advantages of small size and light weight; further, due to the combined connection, the combined external fixing support is convenient, adjustable, flexible and safe in use, is easy to operate, reliable in fixation and easy to popularize.

Description

technical field [0001] The invention relates to an external fixation bracket for foot bones and hand bones, in particular to a multi-segment open fracture combined external fixation bracket for feet and hands, which belongs to the technical field of bone therapy instruments. Background technique [0002] The anatomical structure of hands and feet is small, but their functions are fine. Hands are the main tool for production and labor, and feet are walking tools. When a hand or foot is fractured, surgical treatment and post-fracture treatment are required. In 1876, the former Soviet Union llizarrov designed the full-ring external fixation bracket, which belongs to the multi-plane external fixation bracket. It was recognized by the world for its remarkable therapeutic effect in the treatment of open extremity fractures during the Second World War, and is widely used in clinical practice; In the late 1970s, the semi-ring groove type external fixator was developed and successful...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/64
CPCA61B17/6441A61B17/645A61B17/6466
Inventor 贾涛乔久涛王新杰王兆年
Owner 哈尔滨杰瑞斯医疗科技有限公司