CN103961782A - Novel thrombus-falling-off-resisting type central venous catheter - Google Patents

Abstract

The invention discloses a novel central venous catheter of anti-thrombosis shedding type. A filter screen is installed at the outflow port of the central venous catheter. The technical feature of the present invention is also that the filter screen adopts metal mesh or a commonly used mesh basket for taking thrombus in the catheter. The outlet port of the central venous catheter is provided with a card slot for fixing the filter screen. The beneficial effect of the invention is that a filter screen is added to the outflow end of the central venous catheter, and the transfusion and hemofiltration are not affected in any way, but the thrombus can be prevented from falling off into the vein.

Description

A new type of anti-thrombosis central venous catheter

technical field

The invention belongs to the technical field of medical equipment, and relates to a novel anti-thrombosis shedding type central venous catheter.

Background technique

A central venous catheter (CVC) is a type of endovascular tube placed in a large vein. Its main purpose: to measure central venous pressure (central venous pressure, CVP), to assess circulatory physiological parameters, and to estimate the amount of body fluid. Because of the purpose of measuring CVP, CVP is often used as a false name for CVC in Taiwanese hospitals; large and rapid intravenous infusions often appear in operations with a large amount of blood loss, or to maintain blood pressure during emergency treatment; long-term parenteral nutrition, long-term Antibiotic injections and long-term painkiller injections should be administered; for drugs that are more irritating to peripheral veins (small veins), they should be injected through a central venous catheter instead. For example: Amiodarone, etc.; pipeline for hemodialysis, such as plasma exchange or kidney dialysis. However, long-term placement is prone to complications such as infection and thrombus falling off into the vein in the tube. Strict aseptic operation can be adopted to improve the patient's resistance to prevent infection. However, thrombus falling off is a difficult complication of central venous catheters. Once it occurs, it will directly endanger patient life.

Contents of the invention

The purpose of the present invention is to provide a novel anti-thrombosis central venous catheter, which solves the problem that the existing central venous catheter is easy to cause thrombus to fall off and enter the vein to cause danger.

The technical scheme of the invention is that a filter screen is installed at the outflow port of the central venous catheter.

The technical feature of the present invention is also that the filter screen adopts metal mesh or a commonly used net basket for taking thrombus in the catheter. The outlet port of the central venous catheter is provided with a card slot for fixing the filter screen.

The beneficial effect of the invention is that a filter screen is added to the outflow end of the central venous catheter, so that the transfusion and hemofiltration are not affected in any way, but the thrombus can be prevented from falling off into the vein.

Description of drawings

Fig. 1 is a schematic structural view of a novel anti-thrombosis shedding type central venous catheter of the present invention;

Fig. 2 is a schematic diagram of installing a filter screen at the outflow port of the central venous catheter;

Fig. 3 is a schematic diagram of the port card slot at the outflow end of the central venous catheter.

In the figure, 1. outflow end of central venous catheter, 2. filter screen, 3. card slot.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

In the present invention, as shown in FIG. 1 , a filter screen 2 is installed at the outlet port 1 of the central venous catheter.

The technical feature of the present invention is also that the filter screen 2 adopts metal mesh or a commonly used mesh basket for taking thrombus in the catheter. The outflow end 1 port of the central venous catheter is provided with a card slot 3 for fixing the filter screen 2 .

The present invention intends to place a filter screen 2 at the port of the outflow end 1 of the central venous catheter to prevent the thrombus in the central venous catheter from entering the central vein after shedding. The aperture of the basket. The material of the filter screen 2 can also be a commonly used mesh basket for taking thrombus from deep veins. The filter screen 2 is fixed on the port of the outflow end 1 of the central venous catheter, and the port can adopt a slot 3 to fix the filter screen 2 in the slot 3 .

In the present invention, a filter screen 2 is added to the outflow end 1 of the central venous catheter, so that infusion and blood filtration are not affected in any way, but it can prevent thrombus from falling off into the vein.

Claims (3)

1. A novel anti-thromboembolic central venous catheter, characterized in that: a filter screen (2) is installed at the outlet end (1) of the central venous catheter. 2. A novel anti-thromboembolism type central venous catheter according to claim 1, characterized in that: the filter screen (2) adopts a metal mesh or a commonly used mesh basket for taking thrombus in the catheter. 3. A novel anti-thromboembolism central venous catheter according to claim 1, characterized in that: the outflow end (1) of the central venous catheter is provided with a slot (3) for fixing the filter screen (2).