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Soft-palate super-elastic NiTi carriage for treating obstructive sleep apnea low-ventilation syndrome and preparing method

A sleep apnea, superelastic technology, applied in the field of medical devices, can solve the problems of long-term curative effect degradation, implant extrusion, poor material elasticity, etc., to achieve the effect of good subjective feeling, short recovery time, and improvement of hypoxia

Inactive Publication Date: 2007-08-29
江阴佩尔科技有限公司
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Problems solved by technology

However, since the material used for the Pillar stent is organic polyester, the material has poor elasticity, and PIT surgery is prone to extrusion of the implant, which affects the curative effect, and the operation needs to be repeated or repaired
Since the material used in the Pillar stent is organic polyester, the long-term curative effect tends to deteriorate

Method used

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  • Soft-palate super-elastic NiTi carriage for treating obstructive sleep apnea low-ventilation syndrome and preparing method

Examples

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Embodiment Construction

[0021] Referring to Fig. 1, the present invention is a soft palate superelastic NiTi stent for treating obstructive sleep apnea hypopnea syndrome, which adopts superelastic NiTi shape memory alloy wire to be wound into a closed tongue-shaped structure.

[0022] Its preparation method is as follows:

[0023] Firstly, a superelastic NiTi shape memory alloy wire is used to wind a stent blank with a closed tongue structure. Figure 2 is a schematic diagram of the winding process of the soft palate superelastic NiTi stent of the present invention. The NiTi wire winding direction is: A→E→C →F→B→D→A→E→C→F→B, starting from point A and ending at point B, where the AECFB part is a segment of two NiTi wires closely juxtaposed, and there is no gap between the NiTi wire brackets in the juxtaposed segment.

[0024] Fix the stent blank in a mold, and then perform pre-setting treatment at 400°C-440°C, the processing time is 10min-30min; after water quenching, fix it in another mold for seconda...

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Abstract

The present invention relates to a soft palate superelastic NiTi support for curing obstructive sleep aponea low-ventilation syndrome and its preparation method. It is characterized by that the described support is formed into a closed tongue-shaped structure made up by using superelastic NiTi marmem wire material through a certain winding process. Besides, said invention also provides the concrete steps of its preparation method.

Description

technical field [0001] The invention relates to a NiTi alloy stent, in particular to a superelastic NiTi stent implanted in the soft palate of a human body for treating obstructive sleep apnea hypopnea syndrome (OSAHS) and a preparation method thereof. It belongs to the technical field of medical equipment. Background technique [0002] Obstructive sleep apnea-hypopneasy syndrome (OSAHS) refers to apnea and hypoventilation caused by upper airway collapse and obstruction during sleep, accompanied by snoring, sleep structure disorder, and frequent drops in blood oxygen saturation , Daytime sleepiness and other symptoms. The diagnostic criteria of OSAHS were first proposed by researchers at Stanford University in the 1970s. Respiratory disorders that reduce the respiratory airflow to 20-50% of normal levels, accompanied by a decrease in blood oxygen saturation of more than 4%, are called hypoventilation. , as long as the patient's oronasal airflow pauses for more than 10 seco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/02A61F2/82A61L27/06
Inventor 陈庆福胡建刚刘礼华赵春霞
Owner 江阴佩尔科技有限公司
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