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Treatment method, separation method, and filter assembly

A technology of treatment method and separation method, applied in other medical devices, blood filtration, centrifuges, etc., can solve problems such as increasing mortality, and achieve the effect of preventing cholesterol embolism and reducing burden

Pending Publication Date: 2020-09-22
TERUMO KK
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In addition, as shown in Non-Patent Document 2, although the mechanism of action is unknown, it has been reported that when paclitaxel drug-coated balloon catheter, which is an anticancer agent, is applied to the lesion of the lower extremity, the mortality rate increases after 3 to 5 years

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  • Treatment method, separation method, and filter assembly
  • Treatment method, separation method, and filter assembly
  • Treatment method, separation method, and filter assembly

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Embodiment Construction

[0131] Hereinafter, preferred embodiments of the present invention will be given and described in detail with reference to the drawings. In addition, the dimensional ratios in the drawings may be exaggerated for convenience of description and may differ from actual ratios. In addition, in the following description, the proximal side of the catheter is referred to as "base end", and the side inserted into the living body is referred to as "tip end".

[0132] The treatment method according to the embodiment of the present invention is a method used in catheter treatment, using figure 1 The steps shown are implemented using the Figure 2-7 Be explained.

[0133] The step S1 of disposing the first catheter near the lesion refers to inserting the guide catheter 11 from, for example, the left radial artery 7 and other brachial arteries, passing through the aorta 6, and passing through the branch of the aorta iliac artery 5, the left common iliac artery 1, The left external iliac...

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Abstract

The present invention provides a treatment method, a separation method, and a filter assembly capable of preventing so-called 'Blue Toe syndrome' which is so-called cholesterol crystal embolism of which a fat-soluble compound such as cholesterol crystals generated during dilation of a stenosed site causes clogging in glomeruli of peripheral capillaries or kidney, acute renal failure, and the like.Cholesterol crystals generated from plaque during use of a balloon catheter are taken out of the body and removed using a centrifugal separation device or a filter, and usable living cells are returned to the body to reduce blood transfusion and reduce cholesterol crystal embolism.

Description

technical field [0001] The present invention relates to a treatment method for removing fat-soluble compounds in blood outside the body, a separation method, and a filter assembly used in the treatment or separation. Background technique [0002] Cholesterol, which is a fat-soluble compound dissociated from low specific gravity lipoprotein (LDL) and crystallized, accumulates in plaques caused by arteriosclerosis. [0003] Cholesterol embolism (CCE) refers to the rupture of intravascular plaques due to catheter therapy, etc., as described in Non-Patent Document 1, in which needle-like cholesterol crystals with a diameter of 55 to 200 μm diffuse into the body, causing microscopic Occlusion or inflammation occurs at the blood vessel. [0004] Specifically, in addition to blue toe syndrome caused by occlusion of peripheral arteries and acute renal insufficiency causing glomerulus occlusion, cerebral infarction, intestinal necrosis, and the like have been reported. Especially w...

Claims

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Application Information

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IPC IPC(8): A61M1/34A61M1/36B04B5/04
CPCB04B5/0442A61M1/3693A61M1/3696A61M1/3496A61M2202/0427B04B2005/0471B04B2005/045A61M2202/0021A61B17/22A61B2017/22084A61M25/104A61M2025/105A61M2205/7545A61B2017/22001A61B2017/22002A61M2202/046A61M1/3627A61B2017/22081A61B2017/22079A61M2025/0004A61M2202/08
Inventor 伊藤圭孝松本真哉石井翔大本村忠广齐藤佳之咲本爱子伊藤猛成高桥治彦福冈彻也
Owner TERUMO KK
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