Orthopedic navigation device and preparation method thereof

A navigation device and orthopedic technology, applied in the field of medical equipment, can solve problems such as insufficient connection of orthopedic surgery, scattered overall structure, heavy medical equipment, etc., and achieve the effects of good system compatibility, good molding and processing performance, and good gloss

Active Publication Date: 2016-03-30
浙江华健医用工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the overall structure of the device is fragmented, backward, and imperfect, and it is not closely connected with modern orthopedic surgery, which makes the device subject to many restrictions during use.
In addition, the materials currently used in medical devices are all made of stainless steel or ordinary alloy materials. Although the medical devices made of these materials can basically meet the requirements in terms of strength and rigidity, their performance is average. The finished medical device is relatively heavy

Method used

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  • Orthopedic navigation device and preparation method thereof
  • Orthopedic navigation device and preparation method thereof
  • Orthopedic navigation device and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] According to the composition and parts by weight of the material modified polyphenylene ether plastics of the first movable arm and the second movable arm in Table 1, the raw materials were weighed, and the polyphenylene ether, polybutylene and HIPS were placed at a temperature of Blast drying at 80°C for 3 hours. At the same time, the barrel in the high-speed injection molding machine was heated to 170°C, and then the above-mentioned weighed LDPE, titanium dioxide, interface modifier, toughening modifier, glass fiber, antioxidant, toner and dried polymer Phenyl ether, polybutene, and HIPS are thoroughly mixed and added into the barrel, heated to a molten state. The nozzle of the hot runner at a temperature of 260°C is injected into the molds of the first movable arm and the second movable arm at a temperature of 60°C twice, wherein the first injection pressure is 100MPa, and the second injection pressure is 100MPa. Then keep it under the pressure of 110MPa for 5s, aft...

Embodiment 2

[0056] According to the composition and parts by weight of the material modified polyphenylene ether plastics of the first movable arm and the second movable arm in Table 1, the raw materials were weighed, and the polyphenylene ether, polybutylene and HIPS were placed at a temperature of Blast drying at 95°C for 2 hours. At the same time, the barrel in the high-speed injection molding machine was heated to 185°C, and then the above-mentioned LDPE, titanium dioxide, interface modifier, toughening modifier, glass fiber, antioxidant, toner and dried polymer Phenyl ether, polybutene, and HIPS are thoroughly mixed and added into the barrel, heated to a molten state. The nozzle of the hot runner at a temperature of 275°C is injected into the molds of the first movable arm and the second movable arm at a temperature of 75°C twice, wherein the first injection pressure is 110MPa, and the second injection pressure is 85MPa. Then keep it under the pressure of 100MPa for 8s, after coolin...

Embodiment 3

[0058] According to the composition and parts by weight of the material modified polyphenylene ether plastics of the first movable arm and the second movable arm in Table 1, the raw materials were weighed, and the polyphenylene ether, polybutylene and HIPS were placed at a temperature of Blast drying at 110°C for 1 hour. At the same time, the barrel in the high-speed injection molding machine was heated to 190°C, and then the above-mentioned weighed LDPE, titanium dioxide, interface modifier, toughening modifier, glass fiber, antioxidant, toner and dried polymer Phenyl ether, polybutene, and HIPS are thoroughly mixed and added into the barrel, heated to a molten state. The nozzle of the hot runner at a temperature of 285°C is injected into the molds of the first movable arm and the second movable arm at a temperature of 75°C twice, wherein the first injection pressure is 120MPa, and the second injection pressure is 70MPa. Then keep it under the pressure of 95MPa for 10s, afte...

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Abstract

The invention relates to a navigation device in an orthopedics department and a preparation method of the navigation device. A first movable arm and a second movable arm of the navigation device in the orthopedics department are made of modified polyphenylene oxide plastic which comprises polyphenyl ether, polybutylene, HIPS, LDPE, titanium dioxide, an interfacial modifying agent, a toughening modifying agent, glass fiber, antioxygen and a toner. The preparation method comprises the steps of firstly, conducting forced air drying on polyphenyl ether, polybutylene and HIPS, adding raw materials into a charging barrel after the charging barrel in a high-speed injection molding machine is heated, heating the raw materials into the molten state, then injecting the raw materials to a preheated first movable arm mold and a preheated second movable arm mold in twice through nozzles of a hot flow pass, obtaining the first movable arm and the second movable arm through pressure maintaining, cooling forming and mold opening, and assembling the first movable arm and the second movable arm with other components to form the navigation device in the orthopedics department. The obtained navigation device in the orthopedics department is compact and perfect in whole structure, good in toughness and light in total mass, and the strength of the movable arms is high.

Description

technical field [0001] The invention relates to a medical device and a preparation method thereof, in particular to an orthopedic navigation device and a preparation method thereof, belonging to the technical field of medical devices. Background technique [0002] With the continuous increase of national support and the acceleration of the global integration process, China's medical device industry has developed by leaps and bounds. Among them, some medical devices similar to the orthopedic navigation system emerged at the historic moment. This system can greatly reduce the risk of complex orthopedic surgery and bring a new operation mode to orthopedic surgery technology-visualized surgical technology. This kind of orthopedic surgery uses the navigation system to formulate the surgical plan and intraoperative navigation before the operation. It can track the surgical instruments during the operation, and update and display the position of the surgical instruments on the pati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B90/11A61B34/37C08L71/12C08L23/20C08L51/04C08L23/06C08K13/04C08K7/14C08K3/22
Inventor 王华伟周丰平郁自春
Owner 浙江华健医用工程有限公司
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