Polyurethane for orthopedic external fixation system in complicated environment and preparation method thereof

A complex environment, polyurethane technology, applied in medical science, prosthesis, bandages, etc., can solve the problem of polyurethane hardening and heat generation, achieve superior comprehensive cost performance, ideal effect, and avoid the effect of inducing cardiovascular and cerebrovascular diseases

Inactive Publication Date: 2010-12-08
优创医疗器械技术张家口有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a polyurethane for orthopedic external fixation system in a complex environment in order to solve the above problems, which can effectively solve the problem that the polyurethane is hard to harden or heats up too much in a complex environment

Method used

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  • Polyurethane for orthopedic external fixation system in complicated environment and preparation method thereof
  • Polyurethane for orthopedic external fixation system in complicated environment and preparation method thereof
  • Polyurethane for orthopedic external fixation system in complicated environment and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Preparation of modified isocyanate: react polyphenyl polymethylene isocyanate with polyether diol at 70-90°C to obtain modified isocyanate;

[0043] The preparation of polyether polyol mixture: the polyether polyol of 60 weight parts, the triethylenediamine of 0.5 weight part, the organosilicon stabilizer of 1 weight part, the water of 0.5 weight part, the calcium carbonate of 37 weight parts and 1 The polyether polyol mixture is obtained after the silicon dioxide of weight part is mixed;

[0044] Preparation of polyurethane: mix the polyether polyol mixture and modified isocyanate prepared above in a weight ratio of 1:0.6 to obtain polyurethane.

Embodiment 2

[0046] The preparation of modified isocyanate is with embodiment 1;

[0047] The preparation of polyether polyol mixture: the polyether polyol of 61 weight parts, the triethylenediamine of 1 weight part, the organosilicon stabilizer of 2 weight parts, the water of 0.1 weight part, the calcium carbonate of 35.4 weight parts and 0.5 The polyether polyol mixture is obtained after the silicon dioxide of weight part is mixed;

[0048] Preparation of polyurethane: mix the polyether polyol mixture and modified isocyanate prepared above in a weight ratio of 1:0.65 to obtain polyurethane.

Embodiment 3

[0050] The preparation of modified isocyanate is with embodiment 1;

[0051] The preparation of polyether polyol mixture: the polyether polyol of 62 weight parts, the triethylenediamine of 0.3 weight part, the organosilicon stabilizer of 2 weight parts, the water of 2 weight parts, the calcium carbonate of 33 weight parts and 0.7 The polyether polyol mixture is obtained after the silicon dioxide of weight part is mixed;

[0052] Preparation of polyurethane: mix the polyether polyol mixture and modified isocyanate prepared above in a weight ratio of 1:0.65 to obtain polyurethane.

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Abstract

The invention relates to polyurethane for an orthopedic external fixation system in a complicated environment, which is prepared by the reaction of modified isocyanate and polyether polyol. The invention also provides a preparation method of the polyurethane. The polyurethane can be used at the environmental temperature of 5 to 15 DEG C or 25 to 30 DEG C, can be used for the fixation of a complicated part which is difficult to process by plaster, macro-molecular badges and the like and has superhigh rigidity and strength; meanwhile, the polyurethane is breathable and easily cleanable and thus, medicinal stuff can freely remove the polyurethane to clean and process the skin surface of an injured part according to curing requirements and requirements of patients.

Description

technical field [0001] The invention relates to a polymer material and a preparation method thereof, in particular to a polyurethane used for an orthopedic external fixation system in a complex environment and a preparation method thereof. Background technique [0002] In the patent application with application number 200810038254.7, titled "Novel orthopedic surgical fixation system and its method of use, and polyurethane used in the system", a polyurethane for orthopedic external fixation system is disclosed, but in complex environments, That is, in the field where the temperature is low, there is no hospital, there is no normal temperature environment, or the natural temperature is above 5°C to below 15°C, it is difficult to harden the polyurethane for orthopedic external fixation system on demand, and at the ambient temperature of 25°C to 30°C, the polyurethane Polyurethane used in orthopedic external fixation system hardens too quickly and generates high heat. Contents...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/73C08G18/76C08G18/48C08G18/08A61L31/06
CPCC08G18/4883C08G18/7664A61L15/12A61L27/18C08G18/10C08G18/12A61L31/06A61L2430/02C08G18/48C08G2101/00C08L75/08
Inventor 诸燮平
Owner 优创医疗器械技术张家口有限公司
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