Selama anestesi epidural, lakukan tes resistensi, mengapa jarum suntik melambung ketika tidak ada resistensi?

Anestesi epidural adalah anestesi blok saraf epidural.

Cara operasinya adalah sebagai berikut:

(1) Berbaring menyamping, peluk sendi lutut dengan kedua tangan, dan tekan rahang bawah ke dada dalam bentuk tertekuk.

(2) According to the requirements of the operation, select the intervertebral space between the 10th thoracic vertebrae to the 4th lumbar vertebrae, first perform local anesthesia, and puncture with a spoon-shaped puncture needle. There are two puncture methods: ① pierce into the epidural space perpendicular to the spine, which is called straight puncture; ② pierce obliquely from the paravertebral side, called lateral puncture.

(3) When puncturing, the level passed is mainly judged according to the change of resistance. When the ligamentum flavum is encountered, the resistance increases and it feels tenacious. At this time, take out the needle core, connect the syringe with a small amount of air (or normal saline), and continue to insert the needle carefully. "Empty feeling", use the negative pressure of the epidural cavity to suck the air in the syringe into the cavity, and observe the change of the liquid level at the head of the syringe. If it fluctuates with the change of the negative pressure, it means that it has entered the hard ridge. extramembranous space. If there is no negative pressure and other phenomena, continue to insert the needle. If cerebrospinal fluid is found, it means that it has passed through the epidural space and entered the subarachnoid space, and the puncture fails and should be abandoned.

(4) It has been proved that in the epidural space, the anesthetics are injected in stages. Commonly used anesthetics are 2 percent lidocaine (also known as xylocaine) or 2 percent dicaine, plus 0.1 percent epinephrine 0.1 0.2mL. Generally, the single dose of lidocaine for adults should not exceed 500 mg, and the single dose of dicaine should not exceed 60 mg. Continuous epidural anesthesia can be administered in divided doses according to surgical requirements. The whole process of anesthesia should pay close attention to the patient's response and changes in the level of anesthesia.

(5) Jika anestesi epidural terus menerus diperlukan, pertama-tama ambil kateter ureter yang sesuai dengan ukuran jarum berbentuk -sendok, uji terlebih dahulu apakah tidak terhalang, dan ukur panjang dan ukurannya. Tempatkan bevel dari jarum berbentuk -ke atas (atau ke bawah, tergantung pada kebutuhan pembedahan), dan masukkan kateter ureter ke dalam ruang epidural dari rongga jarum. Tarik keluar jarum sambil perlahan-lahan memajukan kateter ke ruang epidural. Kateter dapat dibiarkan di ruang epidural selama 3 sampai 5 cm, tidak terlalu panjang. Jangan keluarkan kateter dari lumen saat menarik keluar jarum berbentuk sendok -, dan cobalah untuk menyuntikkan sedikit anestesi sekitar 2 mL dari kateter. Akhirnya, kateter yang tertinggal di luar tubuh dipasang lurus ke belakang dengan pita perekat untuk mencegah prolaps dan menekuk ke sudut, untuk memastikan patensi kateter dan pemberian intraoperatif.

Jika Anda memiliki pertanyaan, silahkan hubungi kami. Perusahaan kami dapat memproduksi berbagai jarum khusus, jarum medis, jarum tusukan, jarum suntik, jarum biopsi, jarum vaksin, jarum suntik, jarum suntik, jarum veteriner, jarum titik pensil, jarum pengambilan ovum, jarum tulang belakang, dll. Jika Anda perlu disesuaikan produk jarum, silahkan hubungi kami. Kami menantikan pertanyaan Anda! Kualitas produk yang diproduksi di pabrik kami pasti akan memuaskan Anda!

Silakan hubungi kami jika Anda membutuhkan: zhang@sz-manners.com