Medical use surgical fixing bandage, finger cot and preparation thereof

A bandage and surgical technology, applied in bandages, medical science, plaster bandages, etc., can solve the problems of low thermal deformation temperature, troublesome use and operation, heavy weight, etc., and achieve the effect of patient comfort, convenient use and light weight.

Inactive Publication Date: 2004-12-29
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Non-plastic splints are difficult to cling to human body parts, and cannot achieve a good fixation and support effect; the disadvantages of plaster bandages are that they are heavy, inconvenient for patients to move, poor in air permeability, and poor in X-ray transmission; polyurethane bandages are light in weight and have good air permeability Good, but the storage period before use is short, and the operation is troublesome; the low-temperature thermoplastic medical surgical orthopedic plate with vinyl acetate resin as the main raw material is cheap and easy to manufacture, but the plasticity is poor, so a thermoplastic polycaprolactone was developed. Low-temperature thermoplastic surgical fixation bandage and finger cot as main raw material
[0004] Thermoplastic materials currently containing thermoplastic polymers for medical fixation, such as natural resin orthopedic materials, such as the Chinese patent app

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Take 100 parts of thermoplastic polycaprolactone with a molecular weight range of 20,000, 30 parts of plastic grade polypropylene, 10 parts of clay, and 0.2 parts of zinc white. Compounded in a screw extruder at ℃, then extruded from the spinneret holes and drawn into strands, and then the strands were braided into bandages with a width of 800 mm and a width of 30 mm. This kind of bandage can be used to fix the fingers of patients with finger fractures. When using it, first heat the material in a constant temperature water bath at about 65°C for 1 minute, take it out, wrap it around the fracture site wrapped in gauze for shaping, and cool it down. According to the test method of the national standard GB1042-70, its bending strength is 23MPa; according to the test method of the national standard GB1040-70, its tensile strength is 24MPa.

Embodiment 2

[0030] Take 100 parts of thermoplastic polycaprolactone with a molecular weight range of 40,000, 20 parts of low-pressure polyethylene, 15 parts of wood flour, and 1 part of titanium dioxide. The temperature of the sleeve is: 80 °C for the feeding part, and 180 for the melt extrusion part Compounded in a screw extruder at ℃, then extruded from the spinneret holes and drawn into filaments, and then braided the filaments into a bandage with a width of 1300 mm and a width of 60 mm. This bandage can be used for external fixation of patients with arm fractures. When using it, heat the material in a constant temperature water bath at about 65°C for 1 minute, take it out, wrap it around the fracture site wrapped in gauze for shaping, and cool it down. According to the test method of the national standard GB1042-70, its bending strength is 25MPa; according to the test method of the national standard GB1040-70, its tensile strength is 26MPa.

Embodiment 3

[0032] Take 100 parts of thermoplastic polycaprolactone with a molecular weight range of 80,000, 40 parts of plastic-grade polyamide 66, 25 parts of calcium carbonate, and 0.3 parts of chrome yellow. Compounded in a screw extruder at 280°C, then extruded from the spinneret hole and shaped into a finger cot with an inner diameter of 30mm, a wall thickness of 2.1mm, and a length of 75mm. This kind of finger cot can be used for external fixation of patients with finger fractures. When using it, put the finger cot in a constant temperature water bath at about 70°C and heat it for 2 minutes. After taking it out, put it on the broken finger wrapped in gauze for shaping. After cooling That's it. According to the test method of national standard GB1042-70, its bending strength is 27MPa; according to the test method of national standard GB1040-70, its tensile strength is 27MPa.

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Abstract

The medical bandage and finger stall are produced with thermoplastic caprolactone in 30-100 wt% and thermoplastic polymer in 0.5-50 wt%. The production process includes composite extruding of the mixture material in an extruder to form strip, weaving the strip into bandage, and winding the strip or bandage onto mold to form finger stall. The medical bandage and the finger stall may be softened in hot water at 65 deg.c to obtain excellent plasticity for fitting body shape and settled fast at room temperature to maintain the shape and have relatively high use strength. The present invention may be used in fixing fracture part and restoring.

Description

technical field [0001] The invention relates to a bandage for medical surgery fixation, a finger cot and a preparation method thereof, in particular to a low-temperature thermoplastic bandage for medical surgery fixation, a finger cot and a preparation method thereof. Background technique [0002] Bandages for medical and surgical fixation mainly include non-plastic splints made of wood, metal or plastic, plaster bandages, polyurethane bandages, etc. [0003] Non-plastic splints are difficult to cling to human body parts, and cannot achieve a good fixation and support effect; the disadvantages of plaster bandages are that they are heavy, inconvenient for patients to move, poor in air permeability, and poor in X-ray transmission; polyurethane bandages are light in weight and have good air permeability Good, but the storage period before use is short, and the operation is troublesome; the low-temperature thermoplastic medical surgical orthopedic plate with vinyl acetate resin ...

Claims

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Application Information

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IPC IPC(8): A61F5/05A61F13/00A61F13/04A61L15/26A61L31/06
Inventor 杨庆章悦庭沈新元郯志清
Owner DONGHUA UNIV
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