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VA-ECMO femoral artery cannula for providing lower limb blood perfusion and catheter indwelling method

A technology of blood perfusion and femoral artery, which is applied in the field of medical devices, can solve problems such as ischemic complications of the lower extremities, reduce the risk and complexity of surgery, reduce the incidence rate, and facilitate the operation

Pending Publication Date: 2021-06-08
THE FIRST AFFILIATED HOSPITAL OF ANHUI MEDICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a VA-ECMO femoral artery catheterization and catheterization method that provides blood perfusion of the lower limbs, which solves the problem of lower limb ischemia complications that are easily caused when the VA-ECMO femoral artery catheterization is performed

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  • VA-ECMO femoral artery cannula for providing lower limb blood perfusion and catheter indwelling method
  • VA-ECMO femoral artery cannula for providing lower limb blood perfusion and catheter indwelling method

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Embodiment Construction

[0018] The application will be described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific embodiments are only used to further illustrate the application, and cannot be interpreted as limiting the protection scope of the application. The above application content makes some non-essential improvements and adjustments to this application.

[0019] Such as figure 1 As shown, a VA-ECMO femoral artery cannula that provides blood perfusion of the lower extremities includes a cannula body 1 and a puncture guide core 2. A main lumen 3 and a side lumen 4 that are independent of each other are formed inside the cannula body 1. The main lumen 3 It is a front-to-back through structure, and a main cavity side hole 5 is opened on the outer side of the front end of the main cavity 3, and the main cavity side holes 5 are distributed in various directions on the side for injection of blood in the main cavity 3, and ...

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Abstract

The invention discloses a VA-ECMO femoral artery cannula providing lower limb blood perfusion and a catheter indwelling method. The cannula comprises a cannula body and a puncture guide core, a main cavity and a side cavity which are independent of each other are formed in the cannula body, the main cavity is of a front-back through structure, a main cavity side hole is formed in the outer side of the front end of the main cavity, the side cavity wraps the periphery of the rear end of the main cavity, a side cavity side hole is formed in the outer side of the side cavity along a same front-back straight line, an annular air bag is arranged at the position, between the main cavity side hole and the side cavity side hole, of the cannula body, and a bulging air bag is arranged at the rear end extension line position of the side cavity side hole; the annular air bag and the bulging air bag are both connected with air bag openings used for inflation and deflation. According to the invention, the structure of the femoral artery cannula is improved, lower limb blood perfusion can be met through one-time cannula indwelling, the occurrence rate of lower limb ischemia complications is effectively reduced, the operation is convenient, and the surgical risk, complexity and trauma to patients are reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a VA-ECMO femoral artery catheterization and a catheterization method for providing lower limb blood perfusion. Background technique [0002] Extracorporeal membrane oxygenation (ECMO), referred to as membrane lung, is a new technology to save the lives of dying patients. The essence of ECMO is an improved artificial heart-lung machine. The core parts are membrane lung and blood pump, which play the role of artificial lung and artificial heart respectively. When ECMO is running, blood is drawn from the vein, absorbs oxygen through the membrane lung, and discharges carbon dioxide. After gas exchange, the blood can return to the vein (VV-ECMO) or the artery (VA-ECMO) under the push of the pump. The former is mainly used for extracorporeal respiratory support, while the latter can be used for both extracorporeal respiratory support and cardiac support because the blood pump...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/36
CPCA61M1/36A61M1/3659
Inventor 邵敏赵东升杨伟刘念徐凤玲方明
Owner THE FIRST AFFILIATED HOSPITAL OF ANHUI MEDICAL UNIV
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