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Suction catheter for sucking thrombotic substances

A technology for suctioning catheters and sucking thrombi, which is applied in catheters, medical science, surgery, etc., can solve the problems of inconvenient operation for clinicians, complex composition structure, cumbersome production process, etc., and achieve the removal of thrombus and fragmented atheroma in coronary arteries The effect of plaque, simple design structure and simple production process

Inactive Publication Date: 2016-02-24
HENAN YADU IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] According to the analysis of the existing thrombus aspiration catheters on the market, as well as the analysis of the published or authorized patented technologies, it is not difficult to find that the current aspiration catheters generally have a relatively complicated composition structure, a cumbersome manufacturing process, and relatively high production costs. Therefore, to develop a simple structure, convenient operation, low production cost, convenient clinical use, and can effectively remove thrombus and fragmented atheromatous plaque in the coronary artery, restore coronary blood flow and Myocardial tissue level perfusion, recovery of cardiac function Suction catheter for aspiration of thrombotic material is of great significance

Method used

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  • Suction catheter for sucking thrombotic substances
  • Suction catheter for sucking thrombotic substances
  • Suction catheter for sucking thrombotic substances

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 , figure 2 , image 3 , Figure 4 with Figure 5 Shown, a kind of suction catheter that is used for sucking thrombus material, it comprises front-end catheter 1, and described front-end catheter 1 is made of spring tube 2 and is arranged on the outer wall of spring tube 2 and passes high frequency with spring tube 2 The thermally tightly bonded polyurethane tube 3 is composed of a coating 4 arranged on the inner wall of the spring tube 2. The diameter of the left part of the spring tube 2 is gradually increasing. The left end of the spring tube 2 is provided with a developing head 5, and the spring tube 2 The left and right parts of the tube are respectively provided with a suction area 6 and an observation area 7, and the left part of the polyurethane tube 3 is provided with a suction hole 8 matched with the suction area 6. The wire 9 of the front-end conduit 1, the right end of the front-end conduit 1 is connected with a connecting pipe 10, the r...

Embodiment 2

[0037] Such as figure 1 , figure 2 , image 3 , Figure 4 with Figure 5Shown, a kind of suction catheter that is used for sucking thrombus material, it comprises front-end catheter 1, and described front-end catheter 1 is made of spring tube 2 and is arranged on the outer wall of spring tube 2 and passes high frequency with spring tube 2 The thermally tightly bonded polyurethane tube 3 is composed of a coating 4 arranged on the inner wall of the spring tube 2. The diameter of the left part of the spring tube 2 is gradually increasing. The left end of the spring tube 2 is provided with a developing head 5, and the spring tube 2 The left and right parts of the tube are respectively provided with a suction area 6 and an observation area 7, and the left part of the polyurethane tube 3 is provided with a suction hole 8 matched with the suction area 6. The wire 9 of the front-end conduit 1, the right end of the front-end conduit 1 is connected with a connecting pipe 10, the ri...

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Abstract

The invention relates to a suction catheter for sucking thrombotic substances, which comprises a front-end catheter, wherein the front-end catheter is composed of a spring tube, a polyurethane tube and a coating; the spring tube is provided with a developing head and is also provided with a suction region and an observation region; a suction hole is formed in the left part of the polyurethane tube; a metal wire penetrating through the front-end catheter is arranged in the front-end catheter; the right end of the front-end catheter is connected with a connecting tube; the right end of the connecting tube is connected with a two-way valve; a cylindrical valve plug is arranged at the upper part of the two-way valve; a threaded connector is arranged at the right part of the two-way valve; the threaded connector is connected with a rear-end catheter through threads; threaded butt joints matched with the threaded connector are respectively arranged at the left part and right part of the rear-end catheter; and the right part of the rear-end catheter is connected with a suction syringe through threads. The suction catheter is simple in structure, convenient in operation, low in manufacturing cost, convenient in clinical use, and capable of effectively eliminating thrombi and cataclastic atheromatous plaques in coronary arteries, recovering coronary artery blood flow and myocardial tissue perfusion as well as recovering cardiac functions.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a suction catheter for sucking thrombus substances. Background technique [0002] The occurrence of slow blood flow or no-reflow phenomenon after PCI is the most common cause of myocardial microvascular injury and poor reperfusion in AMI patients, which can significantly increase postoperative re-infarction and other complications. At present, even with intensive Antithrombotic regimen, the incidence rate of distal embolism, slow blood flow and no-reflow phenomenon can still reach 7%~10%, which has become an important factor affecting the effect of emergency PCI, and is also an independent factor affecting the long-term prognosis of patients. Studies have shown that no-reflow is one of the independent predictors of myocardial infarction size, short-term and long-term mortality. Distal blood vessels, no-reflow phenomenon often occurs in AMI patients with a lar...

Claims

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Application Information

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IPC IPC(8): A61B17/22A61M25/00A61M25/095
CPCA61B17/22A61B2017/22038A61B2017/22042A61B2017/22079A61M25/0043A61M25/0067A61M25/0084A61M25/0105
Inventor 张正男韩立涛敖宁建
Owner HENAN YADU IND
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