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Navigation device in orthopedics department and preparation method of navigation device

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: 2014-04-23
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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  • Navigation device in orthopedics department and preparation method of navigation device
  • Navigation device in orthopedics department and preparation method of navigation device
  • Navigation device in orthopedics department and preparation method of navigation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Weigh the raw materials according to the composition and weight parts of the modified polyphenylene ether plastic material of the first movable arm and the second movable arm of Example 1 in Table 1, and place the polyphenylene ether, polybutene and HIPS at a temperature of Blow dry 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 LDPE, titanium dioxide, interface modifier, toughening modifier, glass fiber, antioxidant, toner and dried polymer were weighed above. Phenyl ether, polybutene, and HIPS are thoroughly mixed and added to the barrel, and heated to a molten state. The nozzle passing through the hot runner with a temperature of 260°C is injected into the molds of the first movable arm and the second movable arm with a temperature of 60°C in two times, wherein the first injection pressure is 100MPa, and the second injection pressure is 100MPa. Then, the first movable arm and the seco...

Embodiment 2

[0056] Weigh the raw materials according to the composition and parts by weight of the modified polyphenylene ether plastic materials of the first movable arm and the second movable arm of Example 2 in Table 1, and place the polyphenylene ether, polybutene and HIPS at a temperature of Blow dry 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 LDPE, titanium dioxide, interface modifier, toughening modifier, glass fiber, antioxidant, toner and dried polymer were weighed above. Phenyl ether, polybutene, and HIPS are thoroughly mixed and added to the barrel, and heated to a molten state. The nozzles passing through the hot runner with a temperature of 275°C are injected into the molds of the first movable arm and the second movable arm at a temperature of 75°C in two times, wherein the first injection pressure is 110 MPa, and the second injection pressure is 85 MPa. Then, the first movable arm and the s...

Embodiment 3

[0058] Weigh the raw materials according to the composition and parts by weight of the modified polyphenylene ether plastics of the first movable arm and the second movable arm of Example 3 in Table 1, and place the polyphenylene ether, polybutene and HIPS at a temperature of Blow dry 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 LDPE, titanium dioxide, interface modifier, toughening modifier, glass fiber, antioxidant, toner and dried polymer that were weighed above were mixed. Phenyl ether, polybutene, and HIPS are thoroughly mixed and added to the barrel, and heated to a molten state. The nozzles passing through the hot runner with a temperature of 285°C are injected into the molds of the first movable arm and the second movable arm with a temperature of 75°C in two times, wherein the first injection pressure is 120 MPa, and the second injection pressure is 70 MPa. Then, the first movable ar...

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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 state 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 orthopedic navigation systems have emerged as the times require, which can greatly reduce the risk of complex orthopedic surgery and bring a new operating mode to orthopedic surgery technology - visual surgery technology. This orthopaedic surgery uses the navigation system to make surgical plans and intraoperative navigation before surgery. It can track surgical instruments during the operation, and update and display the position of the surgical instruments on the patient's preoperative or intraoperative ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B19/00C08L71/12C08L23/20C08L51/04C08L23/06C08K13/04C08K7/14C08K3/22
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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