The core tip of the electronic enthusiast network : The implantable medical device industry has made remarkable progress in the past 30 years. From implantable cardiac pacemakers, implantable atrial defibrillators, cochlear implants, various implantable electrodes (used in the treatment of Parkinson's disease, epilepsy and other diseases), implantable insulin pumps, and various implants Intravascular stents, etc., once these products are on the market, they will soon become the best-selling products in the medical device market. To be sure, implantable medical devices have become an important branch of medical devices.
In recent years, the research and development of a new generation of implantable medical devices has been in full swing in developed countries such as the United States, such as wireless heart monitors, real-time blood glucose monitors, remote life monitors, and implantable cancer detectors. These medical devices that are already on the market or are in clinical trials are more dexterous and convenient in appearance or use, which can save medical costs and exert better efficacy, and even predict diseases in time.
Implantable cancer detector
According to a recent report from the American Journal of Science, the incidence of cancer is increasing rapidly in all countries of the world. How to accurately judge the efficacy and tumor progression after receiving chemotherapy, radiotherapy or surgery is a big problem.
Researchers at the Massachusetts Institute of Technology have newly developed an implantable cancer detector with a diameter of less than 5 mm and containing nano-protein particles such as testosterone (androgen). After implanting the product in patients with malignant tumors such as testicular cancer and ovarian cancer, a special protein secreted by active tumor tissues will bind to these nanoparticles and deform. Doctors use the MRI device to scan the cancer detector in the patient's body, they can intuitively understand the activity of the tumor in the patient's body on the display screen, and formulate the corresponding treatment plan accordingly.
Implantable blood glucose monitor
American Zyvex Nanotechnology Company is a company specializing in the development of nano-biosensing technology. The company has newly developed an implantable blood glucose monitor whose size is only the size of an ordinary button battery. This product can generate corresponding weak bio-current according to human blood glucose level, and send the measured bio-current changes to the information terminal through micro silicon semiconductor chips in the form of data, so that doctors and patients can get blood glucose data in real time. The product has entered the stage of clinical trials.
A new implantable glucose sensor developed by American GlySens Company can provide wireless detection for diabetic patients. This device can continuously monitor patients' subcutaneous glucose levels. Compared with the monitoring method of fingertip blood collection, the device can obtain more accurate and more complete information, which can guide the injection dose and time of insulin.
In addition, a Finnish company has newly developed a new type of implantable insulin pump for patients with type 1 diabetes. According to the developer, the implantable insulin pump can automatically adjust the dosage of insulin administered according to the changes in blood sugar of diabetic patients.
Implantable health information recorder
"Chronic diseases" such as high blood pressure, coronary heart disease, diabetes, chronic obstructive pulmonary disease, etc. have attracted the attention of governments of all countries. Predicting the "seedlings" of disease or monitoring the changes of the disease can enable people to prevent, diagnose and treat the disease as soon as possible, or avoid sudden The occurrence of the event.
In recent years, foreign manufacturers have stepped up to develop implantable electronic health information recorders. According to foreign research and development personnel, these implantable instruments can record real-time vital health information such as human heartbeat, blood pressure, pulse, blood glucose and blood oxygen saturation, and wirelessly transmit the data to the data terminal, so that the doctor can grasp the patient in time Changes in vital signs. Most of these new products incorporate new technologies such as nanotechnology, microelectronics, and chip technology.
"Longevity Battery"
At present, except for a few implantable medical device products such as vascular stents, most implantable medical devices require a power source, and the button battery is one of the most used power sources for implantable electronic medical devices. However, the maximum service life of ordinary button batteries is 3 to 5 years, which means that once the power is exhausted, the patient must perform another operation to remove the implanted electronic medical device to replace the new battery.
According to foreign media reports, Canadian Eagle Pitcher has developed the world's smallest "longevity" mini battery for implantable electronic medical devices. Its size is about 0.26 inches, and the discharge time is as long as 15 years, which is more than 3 times that of the existing button battery. It is installed in implantable electronic medical devices such as implantable cardiac pacemakers, implantable atrial defibrillators, and implantable insulin pumps, which can greatly extend the service life of these products and reduce or even avoid secondary surgery. pain of.
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