Comparison between hard channel technology and soft channel technology
1 Hard channel technology 2 Soft channel technology
New technology-rose in the country at the end of 199s and spread rapidly. Old technology-it was used in the fifties and sixties, and it has not changed substantially until recent years.
tube placement is labor-saving and quick. The skull self-locking technology is not easy to fall off, and the patient's activities are not limited. Artificial cranium is laborious and time-consuming. Need to suture, easy to fall off, the patient's activities are limited.
powered by electric drill, it can quickly penetrate the skull and dura mater, and it is not easy to tear between the skull and dura mater (the depth of puncture is fixed by the limiter during puncture). The hand cone is weak and slow, which is easy to tear between skull and dura mater and form a new hematoma.
needle insertion process: the plastic needle core is inserted into the tee, and a round blunt head is formed at the front end; nerves and blood vessels are not cut during the needle insertion process, and the patient is only injured by the disposable needle track, and the brain tissue is slightly damaged. Needle insertion process: Because the hole diameter of the drill hole does not match the outer diameter of the hose, the hose cannot be fixed, and the hose swings back and forth in the brain tissue during the needle insertion process, which causes great damage to the brain tissue.
hematoma removal process: the target is fixed, the needle body does not swing, blood vessels and brain tissue are not cut, and the hematoma removal process has no additional damage to brain tissue. Hematoma removal process: the target is not fixed, and the hose can move with the swing of the patient's head and the fluctuation of brain tissue, which causes great damage to brain tissue, and the hematoma removal process has additional damage to brain tissue.
Good airtightness, no gap around the needle, which is beneficial to hematoma drainage. No leakage, no infection. The tightness is poor, and there is a gap around the hose, which is not conducive to hematoma drainage. Easy to leak, easy to infect.
dual channel design. Irrigation and drainage are carried out simultaneously, so as to keep the intracranial pressure stable and prevent rebleeding. Single channel in and out. Drainage and irrigation are carried out alternately, which makes intracranial pressure rise and fall, which is difficult to control and leads to rebleeding.
When washing again, the old liquid in the drainage tube will not be flushed back into the skull, which will not cause intracranial infection. When washing again, the old liquid in the drainage tube is flushed back into the skull, which is easy to cause intracranial infection.
When rebleeding occurs, the blood and fluid are drained at the same time of injecting hemostatic and irrigation fluid, which can prevent rebleeding without causing intracranial hypertension. It can't be handled when bleeding again.
It can be used for the treatment of epidural and subdural hematoma. Can not be used for the treatment of epidural and subdural hematoma.
It can also be used to treat intracranial abscess and cyst. After-loading radiotherapy in tumor; Intracranial pressure sensor implantation; Take a biopsy, etc. Single purpose