Atrial indwelling catheter capable of being developed under ultrasound

Abstract

The atrial indwelling catheter comprises a catheter main tube (1), a balloon (2) arranged on the outer tube wall of the catheter main tube (1) and a spiral structure (3) arranged at the head end of the catheter main tube (1), and the spiral structure (3) has elasticity and is capable of developing under the action of external force. The spiral structure (3) can be elastically deformed into a linear shape, in the natural state, the spiral structure (3) is spiral so as to be stably left in the atrium on the opposite side, medicine infusion and / or atrial pressure measurement can be conducted through the catheter main pipe, and the balloon (2) can be used for developing positioning under ultrasound.

Description

technical field [0001] The application belongs to the field of medical devices, in particular to an atrial indwelling catheter that can be visualized under ultrasound. Background technique [0002] In the percutaneous interventional diagnosis and treatment of cardiovascular diseases, the atrial indwelling catheter generally cannot reach the left atrium directly, and usually reaches the right atrium first through the vein, and then punctures the interatrial septum of the heart and sends the catheter into the left atrium. At present, the main approach for percutaneous puncture of the atrial septum of the heart is the femoral vein, and the puncture point of the femoral vein approach is at the root of the thigh. If an indwelling catheter is placed through the femoral vein route, the patient needs to lie in bed with his lower limbs straightened and immobilized, and stay in bed for a long time Immobilization and immobilization of limbs will not only bring potential thrombosis risk...

AI Technical Summary

Problems solved by technology

At present, the main approach for percutaneous puncture of the atrial septum of the heart is the femoral vein, and the puncture point of the femoral vein approach is at the root of the thigh. If an indwelling catheter is placed through the femoral vein route, the patient needs to lie in bed with his lower limbs straightened and immobilized, and stay in bed for a long time Braking and immobilization of limbs will not only bring potential thrombosis risk to patients, but also prone to adverse events such as limb numbness, pain, loss of appetite, abdominal distension, and urinary retention, as well as mental and psychological problems such as anxiety, depression, and irritability

In addition, with the maturity and popularization of ultrasound-guided diagnostic and therapeutic techniques, many diagnostic and therapeutic procedures (such as percutaneous puncture of the cardiac atrial septum to place a left atrial manometry catheter) require bedside applications, while the femoral vein approach has a long operating path and limited space. Space requirements are high and cannot be implemented next to the bed

At the same time, because the heart is in a state of continuous beating, the indwelling catheter entering the left atrium may be displaced with the beating of the heart and may prolapse from the left atrium, or the tip of the catheter may come into contact with the atrium wall, resulting in inaccurate pressure measurement

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