Thrombus intercepting device for aorta ascendens and use method of device

A technique of ascending aorta and interception device, applied in the direction of filters in blood vessels, etc., to reduce the cost of use, improve the effect, and prevent the complications of thromboembolism

Inactive Publication Date: 2018-07-31
何奔
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to overcome the defects of the existing permanent thrombus filter, and provide a new ascending aorta thrombus interception device and its use method. The technical problem to be solved is in the interventional operation or During surgery, a retrievable thrombus filter is temporarily placed in the ascending aorta to intercept the thrombus shed from the left heart system without affecting the passage of blood cell components and water, without affecting hemodynamics, and reducing the thrombus in the left heart system Thromboembolic complications caused by shedding, improve the safety of cardiac interventional operations and surgical operations, have high medical and market value

Method used

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  • Thrombus intercepting device for aorta ascendens and use method of device
  • Thrombus intercepting device for aorta ascendens and use method of device
  • Thrombus intercepting device for aorta ascendens and use method of device

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Effect test

Embodiment 1

[0041] Such as Figure 1-6 As shown, the filter screen 1 has a mesh structure, and the filter screen 1 includes leaflets 6 and a filter screen frame 5, wherein the head end of the filter screen 1 is provided with leaflets 6, and the leaflets 6 are connected to the filter screen frame 5. The main part of the filter screen 1 including the leaflets 6 is provided with a coating 7 inside, and the connecting part between the leaflets 6 is a petticoat 8 . Both the coating 7 and the petticoat 8 are PET macromolecule materials, and the PET coating has a pore size of 200-300 microns, and blood components and water can freely pass through the coating, but can intercept thrombi whose diameter is larger than the pore size.

[0042] When performing interventional diagnosis and treatment operations or surgical operations involving the left heart system, such as interventional closure of congenital heart disease, catheter ablation of atrial fibrillation, left atrial appendage closure, percuta...

Embodiment 2

[0044] Such as Figure 7-10 As shown, the filter screen 1 is a mesh structure, which is composed of an elastic frame 5 of the filter screen, a leaflet 6, a PET polymer coating 7 and a petticoat 8, wherein the head end of the filter screen 1 is provided with a leaflet 6, and the leaflet 6 The quantity is 4, the filter screen 1 and the leaflets 6 are provided with a coating 7, and the connecting part between the leaflets 6 is a petticoat 8. The push rod 3 is provided with a cavity 10, and the pulling steel wire 2 passes through the thin hole of the push rod 3, and can be pulled back and forth. The filament 12 at the head end of the pulling wire 2 is connected with the leaflet 6 of the filter screen 1 .

[0045] When performing interventional diagnosis and treatment operations or surgical operations involving the left heart system, the femoral artery is punctured, the arterial sheath is placed, and the filter mesh 1 and the delivery sheath tube 4 are prepared outside the body. ...

Embodiment 3

[0047] Such as figure 1 , 10 As shown, the delivery sheath head end 13 of the delivery sheath tube 4 is the main part of the plastic tube with a certain curvature, the delivery sheath tail end 14 is connected to the hemostasis valve 15 and the flushing pipe 16, and the head end of the flushing pipe 16 is connected to a flushing pipe tee 17 , easy to connect with the syringe.

[0048] The filter screen 1 has a mesh structure, and the filter screen 1 includes leaflets 6 and a filter screen frame 5 , wherein the head end of the filter screen 1 is provided with leaflets 6 , and the leaflets 6 are connected to the filter screen frame 5 . The filter screen 1 is provided with a coating 7, which covers the filter screen 1 in the shape of a bell jar, and the contact part between the coating 7 and the leaflet 6 is similar to a petticoat. The coating 7 is PET polymer material, and the PET coating has a pore size of 200-300 microns. Blood components and water can pass through the coatin...

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Abstract

The invention relates to a thrombus intercepting device for the aorta ascendens and a use method of the device. The device comprises a filter screen, a pushing rod, a traction wire and a conveying sheath, wherein a cavity is arranged inside the pushing rod, and the tail end of the filter screen and the head end of the traction wire form a whole or are connected by a connecting part, and the filterscreen and the traction wire are placed in the cavity of the pushing rod; the filter screen is of an elastic net-shaped structure; the head end of the filter screen is provided with valve blades; theinvention further discloses the method for thrombus intercepting of the device. With the device and the method, the problem that during the heart surgery operation including intervention, thrombus falling from the left heart system flows to the peripheral organs through the aorta ascendens, consequently, thromboembolism is caused, is solved. The effective intercepting for the thrombus of the leftheart system can be realized, the valve blades at the head end of the filter screen are completely closed during filter screen recovery, so that the out leakage of the thrombus can be effectively prevented, and after the operation is finished, the filter screen and the wrapped thrombus are pulled out of the body. The thrombus intercepting device is easy to operate and safe to use.

Description

technical field [0001] The present invention relates to a thrombus intercepting device and its use method, in particular to an ascending aorta thrombus interception device and its use method. Background technique [0002] Thrombus originating in the left heart system is the main cause of systemic thromboembolism. Once there is a thrombus in the left heart system, whether it is a cardiac intervention or a surgical operation, it may cause the thrombus to dislodge, which significantly increases the risk of systemic thromboembolism. For a long time, left ventricular thrombus has been regarded as a forbidden zone and minefield for cardiac interventional operations and surgical operations involving the left ventricular system. Every year, millions of patients undergo interventional operations and surgical procedures involving the left heart system, such as interventional closure of congenital heart disease, catheter ablation of atrial fibrillation, left atrial appendage closure, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/01
CPCA61F2/01A61F2002/016
Inventor 何奔江立生葛恒孔令璁
Owner 何奔
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