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Polyetheretherketone composite material for tridimensional orienting headstock and method for producing the same

A polyether ether ketone and stereotaxic technology, which is applied in the field of neurosurgery medical device materials, can solve the problems of magnetic susceptibility artifacts, insufficient stiffness and strength, etc., and achieve the effects of reducing specific gravity, low cost, and enhancing accuracy

Inactive Publication Date: 2009-08-19
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In order to overcome the insufficient rigidity and strength of the prior art and the possibility of producing magnetic susceptibility artifacts, the present invention provides a polyether ether ketone composite material for stereotaxic headframes, which reduces the specific gravity of raw materials for production and has great impact on electrical conductivity, The magnetic susceptibility has been modified to effectively reduce the deformation

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A polyetheretherketone composite material for stereotaxic headframes, comprising 1.2kg of inorganic fillers, 0.16kg of modifiers, 0.8kg of matrix resin, and 0.25kg of reinforcing fibers; the inorganic fillers are made of glass The composition of fiber, mica, and superfine calcium carbonate is 2:1:1 by weight, the modifier is titanate; the matrix resin is polyether ether ketone; the reinforcing fiber is chopped carbon fiber; the carbon fiber is placed in acetone oxide solution Immerse for 24 hours, then irradiate the fully infiltrated carbon fibers with γ-rays at a dose of 1.20meV, dry the treated carbon fibers, and treat polyetheretherketone with oxygen plasma for about 30 minutes. Ester and inorganic fillers are put into the internal mixer, the internal mixing time is 15min, the internal mixing temperature is 380°C, and the discharge material temperature is 350°C. Add chopped carbon fiber, keep the barrel temperature of the extruder at 380°C, the screw speed at 15r / min...

Embodiment 2

[0028] A polyetheretherketone composite material for stereotaxic headframes, comprising 2 kg of inorganic fillers, 0.16 kg of modifiers, 1.25 kg of matrix resin, and 0.25 kg of reinforcing fibers; the inorganic fillers are made of glass fibers , mica, and ultrafine calcium carbonate are composed of 2:1:1 by weight, the modifier is a silane coupling agent; the matrix resin is polyether ether ketone; the reinforcing fiber is chopped carbon fiber; the carbon fiber is placed in acetone oxide solution Immerse for 24 hours, then irradiate the fully infiltrated carbon fibers with γ-rays at a dose of 1.20meV, dry the treated carbon fibers, and treat polyetheretherketone with oxygen ion for about 30 minutes, and then polyether ether ketone, silane Put the coupling agent and inorganic filler into the internal mixer, the internal mixing time is 20min, the internal mixing temperature is 380°C, and the output material temperature is 350°C. Add chopped carbon fiber to the mouth, keep the ba...

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Abstract

The invention discloses a polyether ether ketone composite used for a solid positioning head frame and a preparation method thereof. The polyether ether ketone composite comprises the components with the weight percentage as follows: 35-52 percent of inorganic filling, 3-5 percent of modifier, 25-35 percent of matrix resin and 20-25 percent of reinforcing fiber. The reinforcing fiber is arranged in epoxy acetone solution to be soaked, subjected to gamma ray irradiation treatment and is dried subsequently; the polyether ether ketone is arranged in oxygen, hydrogen or argon plasma atmosphere to be irradiated for 30 minutes and then is subjected to banburying with the modifier and the inorganic filling in proportion as above; a product and chopped carbon fiber are added into a double-screw extruder to be extruded and granulated; plastic granules are dried, injected and pressurized at constant temperature and then are molded into the solid positioning head frame. In the invention, the proportion for producing the raw materials is lightened and the performance of the polyether ether ketone composite in CT / MRI working environment is improved.

Description

technical field [0001] The invention relates to a neurosurgical medical device material and a preparation method thereof. Background technique [0002] In neurosurgery, the stereotaxic system plays an important role, and it has an important influence on the diagnosis, location, and treatment of intracranial lesions; while the head frame is the core component of the entire stereotaxic system, it has a great influence on the entire stereotaxic system. Stability and the overall course of patient care are critical. In order to meet the requirements of strength, rigidity, dimensional stability, and disinfection, most domestic head frames are currently made of metal materials. In use, these metal head frames have been found to have the following disadvantages, which urgently need to be improved and improved: [0003] 1) The weight is more than 3kg, and the patient is extremely uncomfortable after installing the headgear; [0004] 2) In CT (computed tomography, Computed Tomograp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/16C08K9/04C08K7/14C08K3/34C08K3/26C08K7/06C08K3/04A61B19/00A61B90/10A61B90/14
Inventor 傅增祥郑欣刘峣金若鹏卜毅男姚远
Owner NORTHWESTERN POLYTECHNICAL UNIV
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