RU193239U1 - BLOOD COLLECTION CONTAINER - Google Patents

Abstract

The utility model relates to medical devices intended for use in a kit for eliminating intense and open pneumothorax, hemothorax, drainage of the pleural cavity and collection of spilled blood with the possibility of subsequent reinfusion, in particular, to a container for collecting blood after drainage of the pleural cavity. including a collection tank, a tube for connecting a catheter, and an air exhaust line connected to the collection tank. At the end of the tube for connecting the catheter from the collecting container side, a flap type valve is made, and a filter with a hydrophobic membrane is used in the air discharge line. The technical result is to reduce the likelihood of complications during the pleural cavity drainage procedure when using the device.

Description

The utility model relates to medical devices intended for use in a kit for eliminating intense and open pneumothorax, hemothorax, drainage of the pleural cavity and collection of spilled blood, with the possibility of subsequent reinfusion, in particular, to a container for collecting blood after drainage of the pleural cavity.

A known container for collecting blood (Catheter, packaging system and related methods: patent No. 9808400, United States of America, application No. US 20140231287, declared. 08.21.2014, publ. 07.11.2017). This container (fluid bag), described in the packaging system, is designed to collect blood and contains a container that is connected to the tube leading to the catheter, as well as an anti-reflux device docked to the container.

A container for collecting blood is also known (Sets for thoracocentesis with a Turkel needle / SurgStore online catalog of Bentima products. URL: http://surgstore.ru/en/nabory-dlya-torakocenteza-s-igloj-tyurkel, date appeals - 07/27/2018). This container from the kit is designed to collect blood and is connected to a tube leading to the catheter. In addition, this container is equipped with an air exhaust line. This technical solution is the closest to the claimed technical essence and was taken as a prototype.

The disadvantage of these technical solutions is the relatively high likelihood of complications during use, due to the possibility of liquid from the blood collection vessel to enter the pleural cavity, as well as the possibility of sterility violation inside the vessel when opening the air outlet line. The possibility of fluid from the collection tank into the pleural cavity due to the lack of a valve in the collection tank. The possibility of a violation of sterility inside the tank arises due to the lack of a filter in the air exhaust line.

A technical problem is the development of a blood collection container devoid of the above disadvantages.

The technical result is to reduce the likelihood of complications during the operation of the drainage of the pleural cavity with subsequent collection of blood and its further reinfusion when using the device.

The technical result is achieved as follows, in a blood collection container including a collection container, a tube for connecting a catheter and an air outlet connected to the collection tank, according to a utility model, a flap type valve is made at the end of the tube for connecting a catheter from the collection container, and a filter with a hydrophobic membrane is used in the air exhaust line.

The equipment of the container for collecting blood with a flap-type valve at the end of the tube for connecting a catheter from the side of the collection tank eliminates the possibility of fluid from entering the pleural cavity. This fact will help reduce the risk of pleurisy and empyema.

The supply of the inventive device with an air filter ensures the discharge of excess air when it enters the patient’s pleural cavity into a blood container and maintains sterility inside the collection container when opening the air outlet line. This modification of the device will save medical personnel from the need to establish a largely outdated system of drainage of the pleural cavity according to Bülau using an impromptu flap valve from the “finger” of the surgical glove.

In the most preferred embodiment of the utility model, the pore size of the hydrophobic membrane of the filter is 0.22 μm, which allows for optimal air exchange with a minimum probability of a violation of sterility inside the collection tank.

The inventive device is illustrated in the drawing, where in FIG. presents a container for collecting blood in General.

The blood collection container includes a collection vessel 1, a tube 2 for connecting a catheter, and an air exhaust line consisting of two tubes 3, 4. At the bottom of the collection vessel 1, there is a first opening port 5. At the end of the tube 2 for connecting a catheter from the collection vessel 1 there is a flap type valve 6 connected to a tube 2 for connecting a catheter through an adapter 7. At the end of the tube 2 for connecting a catheter, on the other hand, there is a connector 8 through which the inventive device is connected to a catheter. The assembly tank 1 through an adapter 9 is connected to the first tube 3 of the air discharge line, which is connected through a filter 10 with a hydrophobic membrane to the second tube 4 of the air discharge line. At the opposite end of the second tube 4 of the exhaust line, there is a Luer-Lock 11 connector with a plug 12. A clip 13 is located on the tube 2 for connecting the catheter, and a terminal 14 is located on the second tube 4 of the air discharge line.

The inventive device operates as follows.

The blood collection kit is removed from the sterile packaging. After drainage of the pleural cavity and fixation of the drainage catheter on the victim’s body, the sterile packaging of the blood collection container is removed. Then close the clamp 14 of the air exhaust line and using the connector 8 connect the inventive device with a drainage catheter. Through the connector 8, the tube 2 for connecting the catheter, the adapter 7 and the valve 6, blood flows from the drainage catheter into the collection tank 1. If the container is filled with air, close the clamp 13 of the tube 2 for connecting the catheter and open the clamp 14 of the air exhaust line, remove the plug 12 s Luer-Lock connector 11. Next, the air leaves the collecting tank 1 through the adapter 9, the first tube 3 of the air discharge line, a filter 10 with a hydrophobic membrane, the second tube 4 of the air discharge line and the Luer-Lock 11 to the outside. After the end of the air exhaust, close the clamp 14 and open the clamp 13. After the operation is completed, close the clamp 13 and disconnect the device from the drainage catheter.

The inventive device is illustrated by example.

To assess the effectiveness of the claimed device, an experimental simulation of hemothorax on a large laboratory animal was carried out. A compromised pleural cavity was used for the study, and a drainage catheter was inserted for insertion into the pleural cavity. Then the initial hemodynamic parameters (saturation, respiratory rate, heart rate, blood pressure) were monitored. 500 ml of blood was taken from the femoral artery through the 5Fr introducer into a glass container (1 ml of heparin was previously introduced into the collection container). After blood sampling, after 10 minutes, a control blood test was performed. The introduction of blood was carried out through a drainage catheter installed in the IV intercostal space. After exposure (10 min.) To detect hemothorax, control of saturation, pulse, respiratory rate, blood pressure was performed and then an x-ray examination of the chest was performed. After drainage of the pleural cavity and fixation of the drainage catheter, the individual packaging of the blood collection container was opened and the tube clamp for catheter connection was opened. At the end of the operation, the clamp for the catheter connecting tube was closed and the volume of blood taken was estimated. Saturation, pulse, respiratory rate and blood pressure were monitored, and a chest x-ray was performed to determine the effectiveness of eliminating hemothorax and the position of the drainage catheter in the pleural cavity (based on the location of the radiopaque mark). The container with the collected blood is connected to an intravenous infusion system, then blood is reinfused through an introducer inserted into the femoral vein. After that, saturation, pulse, respiratory rate and blood pressure were additionally determined. The obtained indicators showed that when using the inventive device, the elimination of hemothorax was achieved and reinfusion of the collected blood was performed, therefore, the claimed device can be used to perform thoracocentesis, drainage of the pleural cavity and elimination of hemothorax, in addition, it ensures the collection of blood from the pleural cavity with its subsequent reinfusion. Therefore, the inventive device can be used to eliminate hemothorax in case of damage to the breast, with subsequent collection and reinfusion of blood in case of damage to the breast.

Claims (2)

1. A blood collection container including a collection container, a tube for connecting a catheter and an air discharge line connected to a collection container, characterized in that a flap type valve is made at the end of the tube for connecting a catheter from the collection container, and is made in the air discharge line hydrophobic membrane filter. 2. A blood collection container according to claim 1, characterized in that the pore size of the hydrophobic membrane is 0.22 μm.

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