Online monitoring system for injection, dispersion and solidification process of bone cement at fracture position

Abstract

The invention provides an on-line monitoring system for bone cement injection, dispersion and solidification processes in a fractured vertebral body in a bone cement vertebral body strengthening surgical treatment process, and the system comprises an imaging device which is used for obtaining an image of a fracture position; the bone cement injection module is used for injecting bone cement into a specified position; the sensor module comprises a plurality of fiber grating sensors which are implanted and fixed at corresponding positions of the fracture according to a setting scheme, and is used for identifying sensor numbers and sensing signals according to wavelength codes; the sensing signal demodulation module is used for receiving signals from the fiber grating sensors and demodulating the signals; the post-processing module is used for determining the type of a fracture line according to the image and determining a setting scheme of the sensor module; processing the demodulated signal data to obtain temperature, stress and strain information in the bone cement injection, dispersion and curing process, and determining the injection amount and injection time of a bone cement injection module; the method can effectively provide thoughts and methods for research on reduction of bone cement leakage.

Description

Technical field [0001] The present invention belongs to the field of online monitoring of fiber gratings, and specifically, there is a online monitoring system of bone cement injection, dispersion, and curing process in fracture. Background technique [0002] The statement of this section is merely the background technology information associated with the present invention, which is not necessarily constituted in prior art. [0003] Osteoporosis is commonly used as a common bone disease in the elderly. It is a systemic metabolic bone disease that increases bone crispy due to low bone mass and microstructure of bone tissue. Micro-invasive bone cement injection surgery has the advantages of rapid pain relief, strengthening the vertebral body, patient early restoration of normal activities, minimally invasive bone cement injection has significant clinical potential in increasing fracture vertebral strength, stability, so using bone cement Interoperant reinforcement technique (PVP) a...

AI Technical Summary

Problems solved by technology

Studies have found that the leakage rate of bone cement increases with the degree of damage to the integrity of the vertebral body. Improper puncture or repeated puncture during the

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