Release date: 2014-03-25
On March 21st, "Peking University People's Hospital Urology Surgical Stone Mirror Treatment Symposium" was successfully held in Beijing. At the meeting, the world's first "soft and hard renal angioscopy catheter" was unveiled for the first time, and it competed with international medical equipment giants.
The flexibility, ease of operation and crushing efficiency of this soft and hard mirror have been unanimously recognized by the experts present. The birth of the domestic kidney mirror has broken the long-term foreign-owned medical endoscope field.
On the live broadcast session on the day of the meeting, Li Jianxing, a professor at Peking University People's Hospital, used the device to perform a lithotripsy treatment for a patient with multiple diseases. The kidney stones in the industry were eliminated in less than an hour. The flexibility of the "soft and hard mirror nephroscope catheter" won the applause of the experts present.
According to Wang Xiaofeng, director of the Department of Urology, Peking University People's Hospital, urinary calculi are high-risk diseases of urology, with high incidence and recurrence rate. Men are higher than women. For a long time, the treatment of kidney stones has been from traditional open surgery to Minimally invasive percutaneous nephrolithoscopic surgery to the current minimally invasive or even non-invasive ureteroscopy, Peking University People's Hospital Urology provides a good academic exchange platform, training a large number of clinicians, ureteroscope from the human cavity The road enters, does not open the knife or punch the surface of the human body, almost does not cause bleeding, there is no incision scar after operation, it is minimally invasive or even non-invasive, domestic soft mirror combines the advantages of hard mirror and soft mirror now, the flexibility and accuracy of operation Get the doctor's approval.
At present, the patented technology of “one-piece soft and rigid ureteral nephroscope catheter†has obtained 4 international PCT patents, 2 US patents, 5 Chinese invention patents and 14 utility model patents. At present, this patent has been put into use in many top three hospitals in Beijing, Shanghai and other places, and all have achieved good expected results in the operation.
Source: China Medical Technology Network
The P10 two-color display module all uses the JX5020 driver chip from Taiwan Macroaccumulation. The LEDs of each branch are correspondingly driven by an IC pin. One IC pin drives one LED. We use static cross-current The driving method ensures that the current of each IC can be guaranteed, and the normal guarantee will not cause the entire module to heat up due to the different scanning methods, which will cause damage to the IC, and the brightness of the LED will also be similar to the static cross current. The static cross-current drive ensures the stability of the entire screen.
When all the LED display modules are tested, paste QC, pass, and then perform the first semi-finished product test aging. The longer the aging time, the better, let him exceed 24 hours as much as possible, and then we will display the display module Put on the bottom shell, ready to start pouring.
The glue is filled with a fully automatic glue filling machine. After the ab component glue is combined, the filling is carried out according to the ratio of 10:1. It is better not to lower or increase the ratio. The ratio of 10:1 is just right. , It can be surface-dried in about two hours, and it will dry out in about 4-6 hours. Such glue will have a good guarantee for long-term use.
After the module is filled with glue, place the module on a horizontal plane, and test with a level meter, and then try to make each module as flat as possible, complete the 4 corners of the horizontal position on the same level, the choice of AB glue It is also very important. The AB glue choice must use more than 40 yuan per kilogram of glue. Its adhesion and durability will be very good. It cannot be filled with shoddy glue. It will crack after a long time. The screen will leak. Then put all the display modules in their masks and arrange them to start packaging.
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