An interventional device delivery system

Abstract

The invention discloses an interventional instrument delivery system, which comprises a control handle, a sheath tube and a sheath core placed in the sheath tube. The distal end of the sheath core is provided with at least two developing points distributed axially along the sheath core. The interventional instrument delivery system of the present invention is easy to operate and more accurate in positioning. The developing point is located on the sheath core with a small diameter, and there is almost no deviation between the observed developing point and the actual position due to the problem of the observation angle. Positioning is simpler and more accurate. Moreover, the cost is low, and there is no need to sew three gold pieces on each interventional device as a development point, and the development point is set on the interventional device delivery system and can be reused. More importantly, the risk is low. The gold sheet used as the development point does not need to be sewn on the interventional device, which avoids the secondary damage caused by the gold sheet falling off during the long-term use of the interventional device implanted in the human body.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an interventional instrument delivery system. Background technique [0002] With the rapid development of medical technology and modern digital medical imaging technology, various high-level imaging equipment helps doctors to accurately see the internal structure of the human body, the size of the lesion and its relationship with the surrounding tissue without opening the human body tissue through surgery. Interventional surgery is a treatment developed on the basis of the development of these modern technologies. The guidance of medical imaging equipment is the key to complete interventional surgery and plays an important role in interventional treatment, enabling interventional operations to be performed in real-time and three-dimensional under video guidance. Usually, under the guidance of modern digital medical X-ray imaging equipment, interventional devices are ...

AI Technical Summary

Problems solved by technology

[0008] In order to determine the position of the interventional instrument, three development points can also be fixed on the outer wall of the interventional instrument along its circumference. The development point is to sew the gold sheet on the interventional instrument, because it is seen in the actual operation process. The two-dimensional imaging image is originally three-dimensionally arranged on the interventional device. After two-dimensional projection, there is no way to confirm whether the valve development point is actually in front of the interventional device or behind it, and there is no way to confirm whether the position of the valve is reasonable.

[0009] On the other hand, the three development points are all made of gold, and need to be set on each interventional device, which is very expensive

The production process is also relatively complicated, and it must be sewn on the valve frame of the interventional device very carefully. The development point is left in the human body together with the interventional device for a long time, and the risk of the development point falling is very high.

Images