Balloon dilatation system special for thoracotomy of cardiac surgery

Abstract

The invention relates to the field of medical instruments, and particularly discloses a special balloon dilatation system for thoracotomy of cardiac surgery, which comprises a balloon used for being placed in a blood vessel of a human body and can be expanded after being filled with fluid, and further comprises a detection device which comprises a metal sensor and an indicator, the balloon is provided with a metal piece which can be detected by the metal sensor, and the indicator is used for providing an indication after the metal piece is detected by the metal sensor. According to the invention, the balloon can be accurately positioned under the condition that a radiology monitoring means cannot be applied, the operation efficiency is improved, and the operation requirement is met.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a special balloon expansion system for heart surgery and thoracotomy. Background technique [0002] Cardiovascular atresia and stenosis are diseases with high morbidity and mortality. For such diseases, vascular balloon dilatation is one of the main treatment methods. The balloon is extruded to the outside of the blood vessel to expand the diameter of the lumen of the blood vessel, and if necessary, a stent is implanted in the lesion to support the lumen. Existing vascular balloon dilatation is usually performed in an interventional manner. Percutaneous puncture or incision of peripheral blood vessels will send the balloon into the lesion of the heart or blood vessels under X-ray monitoring. During this process, contrast agent injection is required to Good for observation. [0003] However, for some special patients, interventional methods are not feasible; for example, balloon d...

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Problems solved by technology

[0003] However, for some special patients, interventional methods are not feasible; for example, balloon dilatation is still the preferred method in the treatment of neonatal pulmonary atresia or pulmonary stenosis, but neonatal blood vessels are thin and neonatal Incomplete renal function is not suitable for interventional therapy. At this time, thoracotomy is required, and radiological monitoring methods cannot be used; in the case of thoracotomy, it is necessary to puncture the right ventricle of the newborn and send a balloon. When the balloon reaches the position of the pulmonary valve annulus, it is fully inflated. Since the neonatal heart is small and the pulmonary artery is relatively slender, the operator cannot accurately locate the specific position of the balloon, and often can only make a rough guess. This method is limited by the experience of the operator. Positioning The accuracy is low, which greatly reduces the efficiency of surgery and can no longer meet the needs of surgery

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