Adjustable sheath device

Abstract

The disclosure generally relates to adjustable sheath devices for insertion into the body to provide intravascular access to various medical devices, involving a dynamically expandable sheath capable of expanding within the blood vessel when a medical device is passed through the sheath and retracting back to almost its original size when the medical device is removed from the sheath. Embodiments generally comprise a rigid collar and an elongated sleeve comprising a continuous elastomeric outer layer and an expandable inner layer.

Description

technical field [0001] The art generally relates to adjustable sheath devices for insertion into the body to provide intravascular access to various medical devices. This includes, but is not limited to, all arterial and vascular access, abdominal and thoracic, cerebrospinal fluid, genitourinary and gynecological, upper gastrointestinal, and colorectal procedures. Embodiments generally provide a dynamically expandable sheath that is capable of expanding within a vessel when a medical device is passed through the sheath, and also capable of retracting when the medical device is removed from the sheath. back to almost its original size. Background technique [0002] Vascular introducer sheaths are common in endovascular procedures such as transcatheter aortic valve replacement (TAVR), angioplasty, and stenting procedures to facilitate access to the vascular system for the introduction of removable devices such as wires, balloons, Introduction and placement of pressure sensor...

AI Technical Summary

Problems solved by technology

However, in Australia, TAVR procedures performed using current medical technology and the best way still result in major vascular complications in 5.5% of patients, major bleeding in 8.5% of patients, stroke in 1.6% of patients, and stroke in 1.6% of patients. Myocardial infarction

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