Adjustable sheath device

A sheath and cannula technology, applied in the field of adjustable sheath devices, can solve serious vascular complications, severe bleeding and other problems

Active Publication Date: 2021-05-14
三峰医学有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Adjustable sheath device
  • Adjustable sheath device
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Examples

Experimental program
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Embodiment Construction

[0070] figure 1 The computed tomography scan shown shows the pathways that a removable or implantable medical device, such as a mechanical aortic valve, must travel in its transarterial approach from the femoral artery, via the left and right iliac arteries, to the abdominal artery. The endpoints of the right and left femoral arteries are shown at 110(a) and 110(b), respectively. The right and left iliac arteries are shown at 120(a) and 120(b), respectively, and the abdominal artery at 130. The passage path of a medical device inserted at the femoral artery to the abdominal artery is shown along dashed lines, in the left image for access via the right femoral artery 120(a) and in the right image for access via the left femoral artery in the right image 120(b) entry.

[0071] figure 1 The channel shape shown illustrates some of the vessel curvature that the medical device must traverse during insertion to reach the desired location for placement. Because these images are on...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/01
CPCA61M25/0023A61M25/0045A61M25/0662A61M2025/0024A61M2025/0046A61M25/0102A61M25/0013A61M2025/0188A61M39/06A61B2090/3966A61M25/0014A61M25/0009A61M2025/0681A61M25/0108A61M2025/0047A61M2205/0216
Inventor S·沃思利J·尼科尔森S·贝尔彻
Owner 三峰医学有限责任公司
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