A kind of catheter for intercostal nerve block

Abstract

The invention discloses a honeycomb duct for intercostal nerve block. A main trachea is provided with three branch tracheae for effectively blocking intercostal nerves above and below a partial pleura incision, second and third intercostal nerves on the upper side of the incision, and second, third and fourth intercostal nerves on the lower side of the incision respectively; the intercostal nerves on the upper and lower sides of the incision can be anaesthetized through a middle branch trachea, and liquid leakage micropores are not required to be formed in upper and lower branch tracheae, so that the problem of insufficient blockage of intercostal nerves which are closest to the incision above and below the incision caused by wrong entrance of a liquid medicament into a chest cavity is solved; and three branch tracheae are adopted, so that seven intercostal nerves below a partial pleura can be subjected to effective anesthesia and pain relieving, postsurgical pain of patients is reduced, the occurrence of other complications is avoided, and the medical costs of the patients are reduced.

Description

technical field [0001] The invention belongs to the field of medical instruments for chest open surgery, and in particular relates to a diversion tube for intercostal nerve block. Background technique [0002] The incision pain after thoracotomy is very severe, and the literature reports that the consumption of anesthetics for pain relief after thoracotomy is the largest among all surgical operations. Due to the severe pain, the patient's deep breathing and coughing are restricted, and the lung function of the patient is reduced. In severe cases, complications such as atelectasis, pneumonia, and arrhythmia will increase. In the United States and other western countries, pain after thoracotomy is usually considered as a serious complication and paid attention to. For a long time, clinicians have been looking for a safe and effective pain relief method. Currently, commonly used pain relief methods include intramuscular injection, intravenous injection or oral analgesics, fent...

AI Technical Summary

Problems solved by technology

[0007] At present, there is a paravertebral continuous block device for open chest surgery (patent number: 201120301333.X). This patent document mentions that two microporous catheters can enter the parietal pleura by using a hollow needle with a hollow head to assist in walking Between the chest wall and the chest wall, the drug solution enters the intercostal nerve through the micropore on the catheter for anesthesia. Since one of the ribs is cut at the parietal pleura incision, the intercostal nerves on both sides of the rib also flow into the drug solution through the micropore Anesthesia is performed, and because the intercostal nerve is close to the incision, and due to the negative pressure in the chest cavity, the drug solution is easy to enter the chest cavity through the incision, resulting in unsatisfactory anesthesia effect, and the drug solution entering the chest cavity is likely to cause other complications. The patient's pain cannot be well controlled

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