Liang Xiong was stunned by the sudden accident!


    Because he found that the 4f caliber catheter could not go deep and reach the area where it was tied.


    Definitely not because of the diameter of the brachial artery!


    But because the angle of vascular malformation is tricky, and it is more difficult to adapt to the blood vessels to pass through this area!


    But


    Liang Xiong''s so many years of experience should not predict failure?


    How could this happen?


    Liang Xiong frowned and muttered, "this angle should be able to pass!"


    Zhao Nan on one side couldn''t help saying, "we couldn''t live in this place at that time."


    "I always feel... It''s the lack of compliance of the catheter, which makes me feel a resistance when pushing the catheter. It should be possible to enter according to the blood flow!"


    Liang Xiong was stunned when he heard it.


    His hand was still steady, twitching the catheter back and forth, carefully.


    In fact, the catheter needs to be very careful in the blood vessel, because the most taboo is to hurt the blood vessel wall.


    Especially those patients with vascular disease and heart disease.


    What is compliance?


    Is the ability of the catheter to adapt along the blood vessel.


    However, with the development of polymer science and technology, there are more and more materials with good compliance.


    Including the catheter in Liang Xiong''s hand, it is made of PET material, which can be said to be one of the most flexible materials.


    But why not?


    Liang Xiong suddenly said, "it''s not a matter of materials and conduits!"


    Hearing this sentence, Zhao Nan was stunned: "that''s..."


    Liang Xiong insisted: "it''s a vascular problem!"


    As soon as this remark came out, the surroundings suddenly became quiet. Everyone stared at Liang Xiong with wide eyes and raised their heads.


    No one spoke in the operating room!


    Liang Xiong''s eyes are fixed on the blood vessels.


    Finally, he said, "it''s not the catheter, it''s the blood vessel!"


    "The blood vessel wall is very rough, resulting in low lubricity. Moreover, when I push, I obviously feel the increase of driving force and support, which is very wrong!"


    "This vessel may have been traumatized!"


    After that, Liang Xiong quickly asked, "old man, have you ever hurt your arm?"


    The old man couldn''t help frowning and thinking seriously.


    Suddenly


    He Hui recalled: "it seems that he was really hurt!"


    "But it''s been more than 50 years. At that time, I was only 30 years old. I repaired a house in Jiangxi, and then I accidentally fell on my arm!"


    "But at that time, people didn''t pay attention to it. It was normal to bump on the construction site. I was afraid that the foreman didn''t want me, so I told the foreman that it was all right, and then I didn''t go to see a doctor. I recovered myself!"


    "It''s been 50 years..."


    "If you don''t tell me, I''ve forgotten... Hey!"


    After hearing what he Hui said, everyone was stunned.


    They looked at Shou Weixiang with a shocked face and some emotion. Maybe this is the big man!


    Even this can be guessed!


    In fact, after blood vessels are damaged, they can indeed heal themselves.


    But... It''s hard to say what kind of composition it is!


    Liang Xiong looked at the patient''s blood vessels and couldn''t help sighing. This is not a congenital malformation at all.


    This is... The formation of collateral circulation the day after tomorrow.


    After brachial artery injury, the injury was not light at that time, but fortunately, the collateral circulation was established and did not lead to ischemic necrosis.


    Because of the injury and compression, the brachial artery was changed!


    This kind of situation... Is really too rare.


    Moreover, the old man has been for more than 50 years before he found out.


    Thinking of this, Liang Xiong felt some emotion.


    But


    No matter how you feel, the biggest problem now is that there must be no way to carry out interventional surgery.


    There is no way for the catheter to pass through this tortuous blood vessel, let alone send the catheter along the guide wire.


    And I''m worried about damaging blood vessels, so the manipulation of the catheter is not very strong, and the longitudinal strength and anti twist ability are very low!


    In this way, the less likely it is to send the catheter in!


    What shall I do?


    Try it!


    In the nervous and worried eyes of everyone around.


    Liang Xiong began to try again and again carefully!


    The manipulation of interventional surgery itself is very high.


    And it really depends on a pair of good hands and the grasp of blood vessels under image data!


    Liang Xiong is very proficient!


    But


    The next few efforts did not achieve good results.


    The operation suddenly fell into an embarrassing situation.


    What should I do?


    At this moment, time has passed minute by minute, and it''s more than seven o''clock.


    At this time, it has been six hours since old man he Hui fell ill.


    Liang Xiong began to worry!


    At this time, the most anxious is not him, but the people staring at the big screen surgery in the office!


    Their hearts are in a panic!


    Among the he family, some people have begun to curse their mothers nervously.


    Although they can''t understand the operation, they obviously know they have a problem!


    "It''s been six hours!"


    "OK? No, you said earlier!"


    "Yes, if something happens to my father, can you... Bear the responsibility?"


    "Hey..."


    ……


    These people are really worried.


    The old man''s hands are more precious than their lifeblood!


    This is the money tree of the whole old ho family.


    They can get something from home and sell it for money in three days and two days. It''s enough for them to eat and drink!


    ……


    ……


    At this time, Zhao Nan was also nervous.


    He looked at the sweat drop by drop on Liang Xiong''s head and understood his inner pressure!


    But what?


    Zhao Nan couldn''t help asking, "director Liang... How about... Looking for academician Shou?"


    Suddenly, a word woke everyone up!


    Yes!


    Find academician Shou!


    Mr. Shou Weixiang must have a way.


    Liang Xiong nodded. He had no other way now.


    "Well, OK, call Mr. Shou!" Liang Xiong looked at a graduate student and said directly.


    The graduate student quickly got up and went out.


    Liang Xiong said to Zhao Nan, "change the catheter!"


    "Let''s try again!"


    Zhao Nan was stunned when he heard this, and then his eyes lit up: "change the catheter!? good idea, what do you want to change?"


    Liang Xiong took a deep breath: "try PVC?"


    Zhao Nan''s face changed as soon as he said this!


    "PVC... Isn''t it appropriate?"


    PVC catheter has poor compliance and is easy to damage blood vessels. In fact... Now with the development of PTA intervention technology, it has been rarely used.


    Moreover, the use of this risk itself is relatively large.


    Liang Xiong also has no way!


    Zhao Nan couldn''t help asking, "why don''t we... Wait?"


    Liang Xiong took a deep breath.


    Wait


    Can we only wait for the old man?


    Hey


    The crowd sighed.