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Novel bone surgery fixing system and method of use thereof and polyurethane applied therein

A fixation system and orthopedic surgery technology, applied in fractures, medical science, surgery, etc., can solve the problems of difficulty in transmitting X-rays, inability to detach, and high cost, achieving superior cost performance, no infection, and ideal effects.

Inactive Publication Date: 2008-10-08
上海优创医疗器械技术股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Gypsum fixation uses gypsum as the fixing material, and its disadvantages are that it is not suitable for dealing with complex parts, it is difficult to penetrate X-rays, and it cannot be removed, etc. The patient is more uncomfortable during the whole healing process
[0004] Polymer bandage fixation is mainly suitable for positioning, and its effect is not ideal for fracture and fracture fixation
[0005] The fixation of prefabricated molds requires patients to go to and from the hospital many times for correction, which is time-consuming and laborious, which is not conducive to popularization
[0006] However, internal stent fixation will cause new bone trauma and infection, and the cost is very high, so its application is decreasing day by day.

Method used

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  • Novel bone surgery fixing system and method of use thereof and polyurethane applied therein
  • Novel bone surgery fixing system and method of use thereof and polyurethane applied therein
  • Novel bone surgery fixing system and method of use thereof and polyurethane applied therein

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Mixture B is composed of 90 parts by weight of polyether polyol, 0.3 parts by weight of dimethylcycloethylamine, 2 parts by weight of silicone stabilizer, 7.7 parts by weight of water and 141B, first take 250ml of compound A liquefied MDI Mix with 250ml of mixture B, stir and mix well, fill the polyurethane slurry into the interlayer of two cotton cavities, push it evenly with a roller, and spread it out. After about 1 to 2 minutes, the polyurethane will change from liquid Enter the solid-state softening section, at this time, wrap the two cotton cavities on the desired fixed part, pull up the zipper, shape it by hand to make it close to the desired fixed part, and keep the injured part of the patient still for 8~ After 8.5 minutes, the shaping is completed. At this time, the polyurethane enters the solid hardening section, and after another 20 minutes, the shaping of the orthopedic surgery fixation system is completed, and a flexible fixation system is obtained.

Embodiment 2

[0049] Mixture B is composed of 93 parts by weight of polyether polyol, 1 part by weight of dimethylethanolamine, 4 parts by weight of silicone stabilizer, 2 parts by weight of water and 141B, first take 250ml of compound A liquefied MDI and 250ml The mixture B was mixed, and the rest of the operation steps were the same as in Example 1, and finally a flexible fixing system was obtained.

Embodiment 3

[0051] Mixture B consists of 90 parts by weight of polyether polyol, 1 part by weight of dimethylethanolamine, 4 parts by weight of silicone stabilizer, 5 parts by weight of water and 141B. First, take 250ml of compound A liquefied MDI and 500ml of The mixture B was mixed, and the rest of the operating steps were the same as in Example 1, and finally a rigid fixed system was obtained.

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PUM

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Abstract

The invention provides a novel fixing system applied to orthopedic surgery. The novel fixing system comprises a cotton cavity with a dual-layer structure and an opening at one side and polymer foaming material; the polymer foaming material is filled in a sandwich layer of the cavity; the cotton cavity is provided with a zip or a nylon fastener belt to connect the cotton cavity; the cotton cavity closely covers and is attached to the part to be fixed. The invention also provides an application method of the system and polyether polyurethane used for the system.

Description

technical field [0001] The present invention relates to a novel orthopedic surgery fixation system, its use method and polyurethane foam material used in the system. Background technique [0002] The existing orthopedic surgery fixation materials and methods mainly include plaster fixation, polymer bandage fixation, prefabricated mold fixation and internal bracket fixation. [0003] Gypsum fixation uses gypsum as the fixing material, and its disadvantages are that it is not suitable for dealing with complex parts, it is difficult to penetrate X-rays, and it cannot be removed, etc. The patient is more uncomfortable during the whole healing process. [0004] Polymer bandage fixation is mainly suitable for positioning, and its effect is not ideal for fracture and bone fissure fixation. [0005] Fixing the prefabricated mold requires the patient to go to and from the hospital many times for correction, which is time-consuming and laborious, which is not conducive to popularizat...

Claims

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Application Information

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IPC IPC(8): A61L31/06A61F5/05A61F13/04
Inventor 诸燮平
Owner 上海优创医疗器械技术股份有限公司
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