CN205586012U - Special circulating line of ECMO convenient to blood sampling - Google Patents

Abstract

The utility model discloses a special circulation pipeline for ECMO which is convenient for blood collection, comprising: a circulation pipeline and a blood collection terminal arranged on the pipeline and perpendicular to the pipeline; the blood collection terminal is cylindrical, and the outer layer is a hollow hard plastic layer, the inner cavity communicates with the circulation pipeline, the hard plastic layer is provided with a sealing rubber column, and the center of the sealing rubber column is provided with a gap communicating with the inner cavity, the gap can be inserted into a blood collection needle, and when the needle is not inserted in a sealed state. The utility model has a novel structure and convenient operation, which not only makes up for the difficult blood collection operation on the two ends of the QUADROX PLS membrane lung, and easily causes blood or flushing fluid to be sprayed out, but also reduces the occurrence of infection through aseptic operation.

Description

A special circulation tube for ECMO that is convenient for blood collection

technical field

The utility model belongs to the field of medical equipment, in particular to a special ECMO circulation pipeline which is convenient for blood collection.

Background technique

The circulatory system of extracorporeal membrane oxygenation (ECMO) is mainly composed of membrane lung, centrifugal pump head and pipeline. The pipeline connects the membrane lung and the centrifugal pump head together, and connects with the blood vessels in the body through the arteriovenous cannula, drains the patient's venous blood to the outside of the body through the centrifugal pump, and makes the venous blood flow through the gas exchange of the artificial lung (oxygenator). Oxygenated into arterial blood, and then reinfused into the body to provide a stable circulating blood volume for patients with cardiopulmonary failure.

Clinically, the function of the oxygenator is judged by visually observing the color of the blood after membrane oxygenation and the color difference of the arteriovenous line. The most valuable judgment is to collect blood at both ends of the oxygenator for blood gas analysis and observation. Both ends of the QUADROX PLS membrane lung are equipped with arterial and venous blood gas measurement ports. The operation uses a syringe to collect blood through the external interface, and then flushes the blood in the pipeline with sterile water for injection or 0.9% normal saline pulse. During ECMO operation, the blood flow rate is basically maintained at 2-4L/min, and there is a large impact force when taking blood samples and injecting flushing fluid, which is difficult to control, resulting in blood or flushing fluid spraying out or difficult to control the quality of aseptic operation. Infect.

How to design the blood sampling ports on the pipelines at both ends of the QUADROX PLS membrane lung so as to safely collect blood samples is an unresolved technical problem in the art.

Utility model content

The purpose of this utility model is to provide a kind of ECMO special circulation pipeline that is convenient for blood collection aiming at the defects of the prior art.

In order to achieve the above purpose, the utility model adopts the following technical solutions: a special circulation pipeline for ECMO that is convenient for blood collection, including: a circulation pipeline and a blood collection terminal arranged on the pipeline and perpendicular to the pipeline; the blood collection terminal is cylindrical, The outer layer is a hollow hard plastic layer, and the inner cavity communicates with the circulation pipeline. The hard plastic layer is provided with a sealing rubber column, and the center of the sealing rubber column is provided with a gap that communicates with the inner cavity, and the gap can be inserted into the blood collection tube. needle and is sealed when the needle is not inserted.

A cap connected to the end is arranged on the outside of the blood collection end.

The diameter of the sealing rubber column in the blood collection terminal is 1.5-2.5 cm.

The sealing rubber column is made of medical silicone rubber.

One end of the circulation pipeline is the oxygenator end connected to the oxygenator, and the other end is the cannula end connected to the venous cannula or arterial cannula, and the blood collection end is located at 5-10 cm from the oxygenator end.

When in use, connect the oxygenator end of the circulation pipeline to the oxygenator, and the cannula end to the venous cannula or arterial cannula, start ECMO, and open the cap of the blood collection port at regular intervals during ECMO operation , insert the blood collection needle from the gap of the sealing rubber column, carry out blood sampling on the arterial and venous ends, pull out the needle after blood collection, and cover the cap.

The utility model has a novel structure and convenient operation, which not only makes up for the difficult blood collection operation on the two ends of the QUADROX PLS membrane lung, and easily causes blood or flushing fluid to be sprayed out, but also reduces the occurrence of infection through aseptic operation.

Description of drawings

Accompanying drawing 1 is the structural schematic diagram of the ECMO special circulation pipeline of the utility model.

detailed description

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

Fig. 1 is a schematic structural view of the special ECMO circulation pipeline of the present invention, including: a circulation pipeline 1 and a blood collection terminal 2 arranged on the pipeline and perpendicular to the pipeline.

The blood collection terminal is cylindrical, the outer layer is a hollow hard plastic layer 3 , the inner cavity communicates with the circulation pipeline, and the hard plastic layer is provided with a sealing rubber column 4 . The diameter of the sealing rubber column in the blood collection terminal is 1.5-2.5 cm, and it is made of medical silicone rubber. The center of the sealing rubber column is provided with a gap 5 communicating with the inner cavity, the gap can be inserted into a blood collection needle, and is in a sealed state when the needle is not inserted. A cap 6 connected to the end is arranged on the outside of the blood collection end.

One end of the circulation pipeline is the oxygenator end 7 connected to the oxygenator, and the other end is the cannula end 8 connected to the venous cannula or arterial cannula. The blood collection end is located 5-10 cm from the oxygenator end.

When in use, connect the oxygenator end of the circulation pipeline to the oxygenator, and the cannula end to the venous cannula or arterial cannula, start ECMO, and open the cap of the blood collection port at regular intervals during ECMO operation, Insert the blood collection needle from the gap of the sealing rubber column, sample blood from the arterial and venous ends, pull out the needle after blood collection, and cover the cap.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology and method essence of the present utility model still belong to the scope of the technical and method solutions of the present utility model.

Claims (5)

1. A special circulation pipeline for ECMO that is convenient for blood collection, characterized in that it includes: a circulation pipeline and a blood collection terminal arranged on the pipeline and perpendicular to the pipeline; the blood collection terminal is cylindrical, and the outer layer is a hollow hard plastic Layer, the inner cavity communicates with the circulation pipeline, and a sealing rubber column is arranged in the hard plastic layer. The center of the sealing rubber column is provided with a gap that communicates with the inner cavity. The gap can be inserted into a blood collection needle, and when the needle is not inserted in a sealed state. 2. The special ECMO circulation tube for blood collection according to claim 1, characterized in that: the blood collection end is provided with a cap connected to the end. 3. The ECMO special circulation tube for blood collection according to claim 2, characterized in that: the diameter of the sealing rubber column in the blood collection end is 1.5-2.5 cm. 4. The special ECMO circulation tube for blood collection according to claim 3, characterized in that: the sealing rubber column is made of medical silicone rubber. 5. The ECMO special circulation pipeline for blood collection according to claim 1, characterized in that: one end of the circulation pipeline is the oxygenator end connected to the oxygenator, and the other end is the insertion tube connected to the venous cannula or arterial cannula. The end of the tube, the blood collection end is located at 5-10 cm from the end of the oxygenator.