Sealing and locking device

Abstract

The invention relates to the field of medical instruments, in particular to a sealing and locking device. The sealing and locking device comprises an internal part, an external part and a sealing and locking mechanism; the sealing and locking mechanism is arranged outside the internal part in a penetrating and sleeving mode and connected to the near-end area of the external part; two sets of sliding fit structures are arranged in the sealing and locking mechanism and comprise the first set of sliding fit structures and the second set of sliding fit structures. wherein the first set of sliding fit structures is positioned in a near-end area of the second set of sliding fit structures or outside the near-end area; and after the first set of sliding fit structures realizes the matching state, the second set of sliding fit structures are driven and triggered to form sliding fit, so that the double functions of sealing and locking of the internal part and the external part at any time and at any relative position can be quickly realized through one-step operation.

Description

[0001] The invention belongs to the field of medical instruments, and in particular relates to a sealing and locking device. Background technique [0002] At present, interventional therapy is an emerging treatment method between surgery and medical treatment, including endovascular intervention and non-vascular intervention. After more than 30 years of development, it has now been called the three pillar disciplines together with surgery and internal medicine. To put it simply, interventional therapy is to make a small channel with a diameter of several millimeters on the blood vessel or skin without exposing the lesion, or through the original pipeline of the human body, in the imaging equipment (angiography machine, fluoroscopy machine, CT, MR). , B-ultrasound) to treat the local lesion under the guidance of the least traumatic treatment. [0003] In the prior art, the delivery system for minimally invasive interventional treatment of structural heart disease, including at...

AI Technical Summary

Problems solved by technology

[0006] According to an embodiment in the application of heart atrial septum surgery, the present invention can provide a sealing and locking device for patients with structural heart disease who need interventional treatment, which can solve the problem of long installation time and complicated installation process of internal components during interventional surgery , and the internal parts are easy to loose during the process of pushing, rotating, and moving in the external parts, resulting in the displacement of implanted devices, which improves the safety of surgery

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