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Orthopedic external fixation system for arm part and using method for orthopedic external fixation system

An external fixation, arm technology, used in fractures, surgery, medical science, etc., can solve problems such as inappropriate materials, skin allergies, and cardiovascular and cerebrovascular problems.

Inactive Publication Date: 2012-07-04
诸燮平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when performing orthopedic external fixation on the patient's arm (including the forearm and upper arm), during shaping, the mixture of polyether polyol and modified isocyanate will release heat. If the temperature is too high, the patient's skin will be burned or cause Cardiovascular and cerebrovascular diseases; since the flexible cavity is in direct contact with the skin, if the material used is not suitable, it may cause skin allergies, etc.

Method used

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  • Orthopedic external fixation system for arm part and using method for orthopedic external fixation system
  • Orthopedic external fixation system for arm part and using method for orthopedic external fixation system
  • Orthopedic external fixation system for arm part and using method for orthopedic external fixation system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Mix the polyether polyol mixture and the modified isocyanate at a mass ratio of 1:0.6, and stir evenly to obtain a polyurethane slurry. According to the size of the human body, 410-510 grams of polyurethane slurry is required for a large size, and 410-510 grams of polyurethane slurry for a small size. 250-310 grams of polyurethane slurry, after pouring an appropriate amount of polyurethane slurry into the inner cavity of the arm cavity sheet, use a special tool - a thickness-setting roller to push it evenly and unfold it, and the polyurethane slurry will change from liquid to solid state At this time, the arm cavity piece 1 is wrapped on the arm of the human body, and after the zipper is pulled up, it is fitted to the forearm and upper arm by hand with the elastic shape of the cavity itself, and the injured part of the patient remains motionless for several minutes After that, the cavity hardens itself into a rigid fixed sleeve.

Embodiment 2

[0021] The polyether polyol mixture and the modified isocyanate were mixed at a mass ratio of 1:0.62, and the rest of the steps were the same as in Example 1.

Embodiment 3

[0023] The polyether polyol mixture and the modified isocyanate were mixed at a mass ratio of 1:0.65, and the rest of the steps were the same as in Example 1.

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Abstract

The invention relates to an orthopedic external fixation system for an arm part. The orthopedic external fixation system comprises an arm die cavity piece with an inner cavity and polyurethane arranged in the inner cavity of the arm die cavity piece, wherein the two side ends of the arm die cavity piece are connected together through a connecting device to form a sheath shape which is directly wrapped at the arm of a human body. The invention also relates to a using method for the orthopedic external fixation system for the arm part. According to the orthopedic external fixation system for the arm part, forming temperature is controlled at 39 DEG C, so that overheating is prevented to further avoid the diseases such as cardiovascular and cerebrovascular diseases or skin burns of certain patients, and external fixation cases can be conveniently and simply managed; and the die cavity piece is made of a flexible material which does not change a body surface biopotential difference, so that the condition of skin allergy is avoided.

Description

technical field [0001] The invention relates to the field of orthopedic external fixation, in particular to an arm orthopedic external fixation system and a use method thereof. Background technique [0002] In the invention patent application with the publication number CN101906202A titled "Polyurethane for orthopedic external fixation system in complex environment and its preparation method", a polyurethane for orthopedic external fixation system is disclosed. The alcohol mixture and the modified isocyanate are prepared by reacting at a weight ratio of 1:0.6-0.75. The polyurethane is used in conjunction with the mold cavity, which can handle complex parts that are difficult to fix with gypsum. It has sufficient rigidity and strength, and can penetrate X Rays can clearly understand the healing of the fracture site; at the same time, it is easy to breathe and clean, and the medical staff can freely remove it according to the needs of the patient to clean and treat the skin su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F5/05C08G18/73C08G18/76C08G18/48C08G18/08A61L31/06A61L15/12
Inventor 诸燮平
Owner 诸燮平