Fluid-driven intravascular plaque removal device and method

A fluid-driven and clearing device technology, applied in medical science, surgery, etc., can solve the destructive problems of the inner wall of diseased blood vessels, achieve optimal design and popularization of applications, ensure stability, and reduce complications

Active Publication Date: 2016-08-17
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Diamond back The characteristic is that the same catheter can achieve different rotary cutting radii through speed control, and only contact with part of the tube wall at the same time, w

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  • Fluid-driven intravascular plaque removal device and method
  • Fluid-driven intravascular plaque removal device and method
  • Fluid-driven intravascular plaque removal device and method

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] Such as Figure 1 to Figure 7 As shown, a fluid-driven intravascular plaque removal device of the present invention includes a main shaft 1, and the main shaft 1 is provided with a suction pipe 8, a delivery pipe 10 and a filling pipe 9 integrated with the main shaft 1, The main shaft 1 is provided with a proximal expandable auxiliary isolation cavity 2 , a suction hole 7 and a distal expandable auxiliary isolation cavity 3 from left to right. The suction hole 7 is communicated with the suction pipe 8, and the proximal expandable auxiliary isolation chamber 2 and the distal expandable auxiliary isolation chamber 3 are both communicated with the filling pipe 9 through respective filling holes 4, so that Both the proximal inflatable auxiliary isolation chamber 2 and the distal inflatable auxiliary isolation chamber 3 can be composed of airbags and the like. The ...

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Abstract

The invention discloses a fluid-driven intravascular plaque removal device. A spindle is provided with a proximal expansible auxiliary isolating cavity, a suction hole and a distal expansible auxiliary isolating cavity, a grinding element is disposed between the proximal expansible auxiliary isolating cavity and the suction hole, the grinding element is provided with an impeller, a conveying passage is disposed at the spindle on the left of the impeller, and a right port of the conveying passage is positioned on the right of the spindle; a removal method comprises: assembling in vitro; deploying in a blood vessel, filling the proximal expansible auxiliary isolating cavity and the distal expansible auxiliary isolating cavity with media to form a local circulating chamber; driving the impeller, cutting by the grinding element, and discharging cuttings; stopping delivering material to the blood vessel, stopping the impeller and the grinding element to rotate, stopping cutting, stopping discharging of the cuttings, and releasing the media from the proximal expansible auxiliary isolating cavity and the distal expansible auxiliary isolating cavity. Potential hazards to human body due to characteristics such as excessively high temperature when a motor drive is in operation are avoided, and surgical safety and success rate are guaranteed.

Description

technical field [0001] The present invention relates to a medical device and method, more specifically, to a fluid-driven intravascular plaque removal device and method. Background technique [0002] For diseases such as arterial embolism, venous thrombosis, and arteriosclerotic obliterans, with the development of science and technology in recent years, the treatment method of percutaneous transluminal atherectomy has been greatly developed. Currently more mature systems include SilverHawk of Covidien in the United States TM Peripheral atherectomy system, Peripheral Rotablator from Boston Scientific, USA TM Rotational Atherectomy System and Jetstream TM Atherectomy System, Straub Medical, Switzerland S, American Volcano Atherectomy System and Diamondback of CSI in the United States Peripheral Orbital Atherectomy System, etc. Silver Hawk TM etc. is a directional resection system consisting of a cutting device and a tubular casing (nasal cavity) that collects cuttin...

Claims

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Application Information

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IPC IPC(8): A61B17/22
CPCA61B17/22A61B2017/00539A61B2017/00778A61B2017/22054A61B2017/22067A61B2017/22078A61B2017/22079
Inventor 房丰洲张皓洋宋乐
Owner TIANJIN UNIV
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