1, troubleshooting and handling methods

The abnormality caused by the abnormal appearance of the fiber optic endoscope is that the customer cannot repair or handle it by himself, and can only return to the factory for testing and maintenance. Common situations are:

1. The entire mirror body is damaged.

2. Indentation occurs in any part of the fiberscope

3, the optical fiber endoscope appears light leakage point

4, the image is broken glass

(1) Optical fiber endoscope imaging dark

1) Determine whether the brightness of the light source is adjusted to the maximum. If it is not adjusted to the maximum, the brightness of the light source can be increased.

2) Determine whether the light source is not bright enough due to the old age, because the light source system is old and more

Change the light source system.

3) Determine whether the light guide beam is connected correctly and the connection is tight, and the light guide beam can be reconnected.

4) Determine whether the patient has accumulated water. If there is accumulated water, it cannot be changed by adjustment.

The surgical procedure needs to be changed when the operation is completed.

5) The use of fiber optic endoscopes causes the loss of the illumination fiber to be sent back to the company for detection when the image is dark.

Repair or replace the fiber optic endoscope.

(2) fiberscope imaging blur

1) The appearance of water marks during surgery leads to blurred imaging: it is characterized by normal imaging at the beginning of surgery and prolonged imaging blurring over time during surgery. It can be initially judged that the sealing performance of the fiberscope is problematic. For example, for the new fiberscope, the number of uses is small and the time to sell to the dealer is short, and free maintenance can be given. If the fiber optic endoscope is used for a long time, and the light leakage point is more, the fiber endoscope is normally worn out, and the company can give free detection.

2) The occurrence of dark spots during surgery leads to blurred imaging: the appearance of dark spots is caused by the fracture of the imaging fiber.

When the fiber optic endoscope illumination fiber loss is less than 70, it is caused by normal loss. When the illumination fiber is more than 70, the company will provide free maintenance when the sales time is short.

3) Front end foreign matter: Part or all of the field of view will be blocked.

1 The front-end foreign body that appears in the operation: multiple manifestations of sudden blurring of the imaging during surgery, especially

Don't be partially ambiguous. Clean the front end of the mirror with alcohol or saline in time. If the cleaning can not achieve the effect, the fiber endoscope and the catheter can be disassembled, and then the front end of the fiber endoscope can be cleaned. If the foreign body of the fiber endoscope cannot be cleaned on the operating table, The fiber-optic endoscope can be replaced with a fiber-optic endoscope, and the fiber endoscope with a foreign body at the front end is cleaned with an enzyme solution, and cannot be cleaned and sent back to the company for processing. If it is found that there is no problem with the fiberscope imaging alone, consider the foreign matter inside or at the front end of the catheter. You can clean the foreign body in the catheter by wiping the front end of the catheter or the fiberoptic endoscope hole of the irrigation catheter. If the cleaning can be replaced, the original catheter will be returned. Goods processing.

2 The front end foreign body caused by uncleaned postoperatively: The performance of the fiberoptic endoscope is normal when the operation is performed. The imaging of this operation is blurred. When the current foreign body deposits more, the front end of the objective lens is uneven or foreign matter. At this point, you can use the enzyme solution to soak and clean. If the cleaning is not complete, you can return to our company for treatment.

4) Strong reflective spot on the front end of the catheter

1 After the fiber optic endoscope is assembled, it is found that there is a strong reflective point at the front end of the fiber endoscope. This is a normal phenomenon. Most of the fiber endoscopes have foreign objects that cause strong reflection points. After washing with water, they can be corrected. normal phenomenon.

2 There is a strong strong reflective point: consider the strong reflective point caused by the fiber endoscope close to the intrarenal tissue or stones during the operation. At this point, the surgeon mainly keeps the fiberscope endoscope with a certain field of view to prevent strong reflection points.

3 Strong reflective points that suddenly appear during surgery:

a. For the strong reflection point caused by the adhesion of the intrarenal tissue or stone powder to the front end of the fiber endoscope, it can be treated according to the foreign body at the front end.

b. It is caused by the rebound of the stone powder during the crushing process to the endoscope of the fiber endoscope. Carefully observe the fine unevenness on the surface of the eyepiece, as shown in the figure below. At this time, the factory needs to be tested and repaired.

Questions and answers about common problems during surgery:

1) After the product is assembled and debugged, it is found that the image is not clear and there is a strong reflective point.

Reason: Foreign matter sticks to the front end of the fiber endoscope during product sterilization and assembly, and a strong reflective spot appears after the light source is connected.

Solution: After the water is rinsed, the foreign matter can be washed away without a strong reflective spot.

1) Bubbles appear during surgery

Reason: The air is not exhausted before entering the human body; the inlet channel is not tightly connected; the pump water is not replaced in time to cause air to enter the home; when the water is handed, the water is mixed with air bubbles into the human body.

Solution:

1 Connect the whole channel, check whether the channel is tightly connected before use, then empty the air of the whole channel, replace the liquid in time, the water should be even and slow, avoid the air when replacing the syringe; enter the front air of the human body .

2 If bubbles have been generated, it can be treated by flushing, gently shaking the mirror body, pumping back the liquid from the inlet hole of the catheter, facing the air bubbles, and gently rubbing the laser.

3) Halo or crescent in the field of view

Cause: The displacement compensator is not properly adjusted during assembly, causing the fiberscope to not reach the fore end of the catheter or the flexible extension of the flexible catheter after bending for a long time.

Solution: After loosening the compensator, adjust the compensator slightly according to the product assembly/user manual.

4) 钬Laser fiber cannot be worn out

Cause: The front end of the 钬 laser fiber re-conductor is in the active or passive bending state of the front end.

Solution: soft and hard ureteral sheath (catheter) needs to wear krypton laser in the straight state, when soft and hard ureteral sheath

When the bending angle of the (catheter) is greater than 90°, the holmium laser fiber cannot be smoothly passed out as a normal condition. When the angle of penetration is less than 90°, the laser fiber cannot be worn out. Check whether the front end of the catheter is passively bent due to the structure of the kidney. In this case, the soft and rigid ureter sheath (catheter) needs to be retracted into the ureter sheath to pass through the krypton laser. Go find the target stone again. If the direction of the soft and rigid ureteral sheath (catheter) can be adjusted to try to wear the holmium laser fiber when the ureteral sheath cannot be worn out, consider the problem of the catheter when the holmium laser fiber is still not able to be worn out, and replace the soft and rigid ureter sheath ( Catheter) to complete the surgery.

5) The stone can not be processed

     the reason:

1) When the IPA angle is<30°, the bending angle of the soft mirror is not enough, and the squat stone is difficult to handle;

2) The neck is too deep and too narrow, the soft mirror cannot enter or the flexible mirror can not be bent long enough to reach