The esophageal balloon catheter is an innovative medical device that treats esophageal stricture or swallowing disorders through minimally invasive interventional technology. As a leading domestic medical device manufacturer, Jiangsu Changmei Medical Technology Co., Ltd. (Changmei Medtech) has occupied an important position in the field of esophageal stricture treatment with its independently developed three-stage balloon catheter technology.

Changmei Medtech's three-stage balloon catheter (models such as TB-28U-A55) adopts a unique three-section design, which can gradually apply different pressures and diameters to achieve precise dilation. The balloon material has high pressure resistance (it can withstand a pressure of 20ATM), and both ends are equipped with X-ray opaque markers for easy precise positioning during the operation.

1. Neurogenic Swallowing Disorders
   Patients with stroke, traumatic brain injury, etc. often suffer from dysphagia due to cricopharyngeal muscle dysfunction. Through balloon dilation, it can stimulate the sensory nerves in the throat and enhance muscle coordination, enabling more than 90% of patients to regain the ability to eat orally.
2. Anastomotic Stricture after Esophageal Surgery
   After esophageal cancer or esophagogastrectomy, about 30% of patients develop strictures due to scar hyperplasia. The short-term effective rate of balloon catheter dilation is as high as 87.8%, and the incidence of complications (such as perforation and bleeding) is significantly lower than that of traditional bougie dilation.
3. Radiation-induced Esophageal Stricture
   After radiotherapy for head and neck tumors, fibrosis of the esophageal wall can lead to dysphagia. Balloon dilation can effectively relieve symptoms by mechanically tearing the scar tissue and combining with drug perfusion (such as dexamethasone).

1. Innovative Three-section Design
   Changmei's three-stage balloon catheter (such as BD-28N-0640) supports three diameters (6-15mm) and pressure gradients, suitable for different degrees of stricture. The multi-wing wrinkled structure ensures excellent resilience of the balloon and avoids displacement during the operation.
2. Safety and Precision
   Elastic Soft Tip Design: Reduces mucosal damage and improves passability;
   Imported Materials: Resistant to high pressure and highly transparent, facilitating intraoperative observation;
   Rapid Drainage System: Shortens the operation time and reduces the risk of infection.
3. Clinical Verification and Certification
   Changmei Medtech's balloon catheter has passed the CE and ISO13485 certifications, and with the support of 13 domestic product registration certificates, it is widely used in tertiary hospitals. Clinical data shows that the 5-year effective rate of treating esophageal anastomotic stricture is 66.7%.

1. Standardized Operation Steps
   Preoperative Evaluation: Confirm the location and degree of stricture through a laryngoscope or barium meal;
   Catheter Insertion: Inserted orally or nasally, with X-ray-assisted positioning;
   Graded Dilation: Gradually increase from low pressure (such as 5ml) to the target diameter (such as 6.5ml);
   Postoperative Observation: Monitor mucosal edema or bleeding, and perform nebulization anti-inflammatory treatment if necessary.
2. Contraindications and Risk Control
   Contraindications: Severe reflux esophagitis, nasopharyngeal mucosal damage, respiratory failure, etc.;
   Complication Management: Minor bleeding can be locally treated with thrombin, and severe perforation requires endoscopic stent placement.

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