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Suction catheter

A suction catheter and catheter technology, applied in the field of medical devices, can solve problems such as increasing operation time, increasing operation risk, and affecting suction effect

Active Publication Date: 2018-11-30
APT MEDICAL HUNAN INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the existing suction catheter, when the proximal end of the thrombus is not blocked or when the proximal end is blocked but there is no blood flow at the distal end, the suction effect will be affected, the operation time will be increased, and the operation time will also be increased. risk

Method used

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] The core of the present invention is to provide a suction catheter, which can improve the suction effect.

[0026] In a specific embodiment of the suction catheter provided by the present invention, please refer to figure 1 , including a catheter body and a balloon 5 for blocking blood flow in the blood vessel 11 after expansion, the balloon 5 is connected outside the catheter body. The catheter body is provided with a guide wire perfusion cavity 3 , a...

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Abstract

The invention discloses a suction catheter. The suction catheter comprises a catheter body and a balloon which is connected to the outside of the catheter body and is used for stopping blood flow after expanding; a guide wire infusion cavity for infusing normal saline and / or circulating blood flow, a suction cavity for absorbing thrombi under negative pressure and a balloon cavity for inflating and deflating the balloon are formed in the catheter body; a guide wire is detachably inserted in the guide wire infusion cavity; the guide wire infusion cavity communicates with two sides of the balloon and comprises a positioning section for penetrating through the thrombi; and the positioning section and a suction opening of the suction cavity are arranged on the same side of the balloon. According to the suction catheter, the balloon stops blood flow, the suction cavity can provide the negative pressure, the guide wire infusion cavity can form cavities communicating with the two sides of theballoon, blood flow and / or normal saline are / is provided for thrombus far ends from the guide wire infusion cavity to increase the pressure of the thrombus far ends, difference between pressures of the two sides of a thrombus can be increased under cooperation of the suction cavity, thrombi are pushed to the suction opening, and the suction effect can be improved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a suction catheter. Background technique [0002] Coronary atherosclerotic heart disease has become the number one killer threatening people's health and life. Unstable coronary artery atherosclerotic plaque rupture leads to acute thrombosis, which occludes the coronary artery lumen, interrupts blood flow, and causes ischemia or necrosis of myocardial cells in the corresponding blood supply area. The key to treating patients with acute coronary syndrome (ACS) is to quickly open the infarction-related blood vessels and restore the blood supply of myocardial cells, so as to reduce the size of myocardial infarction, reduce the risk of complications, and improve short-term and long-term prognosis. [0003] In the prior art, a suction catheter is usually used to aspirate the thrombus. The suction catheter is sent to the thrombus site, and the thrombus is drawn out from t...

Claims

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Application Information

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IPC IPC(8): A61B17/22
CPCA61B17/22A61B2017/22038A61B2017/22067A61B2017/22079A61B2017/22094
Inventor 陈纪言杜志明成正辉高晓周文
Owner APT MEDICAL HUNAN INC
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