Percutaneous T-tube cholangiography agent bolus injection device

Abstract

A T-tube biliary contrast agent injection device, including patient-end equipment and physician-end equipment, the patient-end equipment includes: a syringe slot, a slot body and a syringe jacket slot and a jacket crimp slot arranged in the slot body and the injection rod slot, the syringe jacket slot and the jacket curling slot are used to fix the syringe; the injection rod is used to push and pull the syringe, including the rod body that matches the syringe jacket slot, and the rod body is used to match the injection rod The injection rod boss of the card slot, the motor with the remote control receiving device is connected to the end of the rod body; the support table includes a beveled edge for placing the syringe card slot; the doctor's end equipment includes: matching with the remote control receiving device of the motor remote control; this invention combines telemedicine technology with cholangiography technology, specially designed for cholangiography, remote control, variable speed control, on the one hand to protect doctors from radiation damage, on the other hand can control or change Angiography speed, reducing postoperative complications of patients.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, and relates to a remote control injection pump, in particular to a T-tube biliary contrast medium injection device. Background technique [0002] Since the 1970s, cholangiography has been used as an auxiliary diagnosis and treatment technique for preoperative, intraoperative and postoperative biliary tract diseases, which has greatly improved the efficiency of diagnosis and treatment of biliary tract diseases. For a long time, X-ray examination has been an important examination method for biliary tract diseases, but some biliary tract diseases cannot be clearly visualized on ordinary X-ray films. At this time, cholangiography technology can solve the above problems. And channels into the biliary tract, so that the overall outline of the biliary tract and the lesion area can be clearly displayed on the X-ray film. [0003] Currently, the most commonly used clinical cholangiography metho...

AI Technical Summary

Problems solved by technology

However, these direct cholangiography methods require doctors to inject contrast agents directly into the patient’s biliary tract through different channels under X-ray fluoroscopy. Although there are protective measures such as lead clothing, the high-intensity workload is accompanied by high-intensity radiation exposure. It will still cause some iatrogenic radiation damage to doctors and threaten their health; Magnetic resonance cholangiopancreatography (MRCP) is a non-invasive magnetic resonance imaging technique that can display the bile-pancreatic duct system without contrast agents. It has been widely used clinically, but it is expensive, and it is not suitable for patients with metal stents, metal dentures, etc. that may interfere with the effect of magnetic resonance, and cannot perform therapeutic operations, so it cannot replace direct cholangiography

Medical teams at home and abroad try to design remote bolus injection equipment (such as Berke Ralph et al.) or use the existing remote bolus injection technology to replace doctors for cholangiography, but most of their structures do not meet the requirements of cholangiography. The equipment is designed horizontally without bubble return. The pumping action cannot simulate the actual cholangiography process well; the traditional contrast agent injection process mostly relies on the operator to "blindly push" by hand feeling, and the control of the speed is poor. Cause symptoms such as abdominal distension, abdominal pain, cholangitis, etc. When the pressure is too high, bile will also flow back into the blood, causing serious conditions such as fever, infection, and even sepsis

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