WO2015158234A1

WO2015158234A1 - Double-chamber blood storage unit

Info

Publication number: WO2015158234A1
Application number: PCT/CN2015/076468
Authority: WO
Inventors: 刘鹏; 林伟东; 王康
Original assignee: 东莞科威医疗器械有限公司
Priority date: 2014-04-14
Filing date: 2015-04-13
Publication date: 2015-10-22
Also published as: CN103877632B; CN103877632A

Abstract

A double-chamber blood storage unit comprises a first blood storage chamber and a second blood storage chamber. The first blood storage chamber and the second blood storage chamber are communicated with each other through a pipeline connecting device, the first blood storage chamber is provided with a first chamber, the first chamber is provided thereon with a left ventricular suction pipeline communicated with the inner cavity of the first chamber, and the left ventricular suction pipeline is used for storing sucked intracardiac blood in the first chamber. The second blood storage chamber is provided with a second chamber, the second chamber is provided thereon with a right ventricular suction pipeline communicated with the inner cavity of the second chamber, and the right ventricular suction pipeline is used for storing, in the second chamber, the blood originating from right ventricular suction. The pipeline connecting device is arranged between the first blood storage chamber and the second blood storage chamber, the first blood storage chamber and the second blood storage chamber are used to respectively store human bloods generated in different surgical environments, and a connecting tube is opened or closed through a channel valve on the pipeline connecting device. The double-chamber blood storage unit is simple in structure and convenient to use, and can ensure that the blood in thoracic chamber can be safely and effectively recycled to body blood during surgery.

Description

Double lumen blood reservoir

Technical field

The invention relates to the technical field of medical instruments, in particular to a double-chamber blood reservoir.

Background technique

At present, the oxygenated part of the membrane oxygenator used in clinical practice is mostly made of hollow fiber membrane tube. The existing better oxygenator generally has six functions, namely oxygenation, heat exchange and blood storage (multiple For venous blood storage), defoaming, intracardiac attraction, filtration, etc., and the general membrane oxygenator adopts a single-capacity cavity structure, and the patient's venous blood is drained into the accommodating cavity by gravity, during the operation, due to There is a different blood environment of venous blood storage and thoracic blood storage, and the venous blood of different ventricles is mixed into the accommodating cavity by the conduction function of the left heart suction line and the right heart suction line, which is easy to cause blood transport quality. Unstable; in addition, a single hollow fiber membrane tube is disposed in the accommodating cavity, so that the blood is incompletely filtered during transportation and enters the patient body, which has an unsafe factor.

Summary of the invention

Based on this, it is necessary to provide a double-chamber blood reservoir with simple structure and convenient use, which can safely and efficiently recover blood in the chest cavity to the body blood during the operation.

In order to solve the above technical problem, the technical solution adopted by the present invention is: a dual-chamber blood reservoir comprising a first blood storage chamber and a second blood storage chamber, the first blood storage chamber and the second blood storage chamber Connected between the first blood storage chamber and the first chamber, wherein the first chamber is provided with a first chamber for storing blood, and the first chamber is provided with a left heart suction line communicating with the chamber of the first chamber. The left cardiac aspiration tube is configured to store intracardiac blood suction in the first chamber; the second blood storage chamber is provided with a second chamber for storing blood, and the second chamber is provided with A right heart suction line communicating with the second chamber inner chamber, the right heart suction line for storing blood at the time of right heart attraction in the second chamber.

In one embodiment, the first chamber is provided with a cylindrical first screen membrane for filtering particles present in the blood in the first chamber.

In one embodiment, the second chamber is provided with a cylindrical second screen membrane adjacent to the right heart suction line, and the second screen membrane is used for presenting blood or chest blood in the right heart. The particles are filtered.

In one embodiment, the second chamber is provided with a third mesh membrane below the second sieve membrane, and the third sieve membrane is spaced apart from the second sieve membrane, the third sieve The membrane is used to filter the blood filtered through the second mesh membrane again.

In one embodiment, the first chamber is further provided with a venous return tube different from the left heart suction line for storing the venous blood in the first chamber.

In one embodiment, the pipe connecting device includes a connecting pipe penetrating the first blood storing chamber and the second blood storing chamber and a passage valve held between the connecting tubes, the connecting pipe is close to the first One end of the second blood reservoir protrudes into the second chamber and communicates with the second screen membrane, and the passage valve is used to open or close the connecting passage of the connecting tube.

In one embodiment, the passage valve is pivotally connected to the connecting pipe, the passage valve includes a rotating shaft disposed perpendicularly to the connecting pipe, and a through hole is formed in a middle of the rotating shaft, and the through hole matches the connecting hole The pipe duct is disposed, and the rotating shaft end is provided with a rotating handle.

In one embodiment, a connecting frame is laterally connected under the second blood storing chamber, and the connecting frame is rotatably disposed under the second blood storing chamber, and the connecting frame is used for fixed connection with the external bracket.

In one embodiment, the first blood reservoir and the second blood reservoir are integrally formed.

In one of the embodiments, a bleeding port is disposed below the first chamber.

In summary, the dual-chamber blood reservoir of the present invention stores the different surgical environments by using the first blood storage chamber and the second blood storage chamber by providing a pipe connection device between the first blood storage chamber and the second blood storage chamber. The generated human blood, which is connected to the passage valve on the pipe connecting device, opens or closes the connecting pipe, The structure is simple and convenient to use, and the blood in the chest cavity during the operation can be safely and efficiently recovered to the body blood.

DRAWINGS

Figure 1 is a schematic view showing the structure of a double-chamber blood reservoir according to the present invention;

Figure 2 is a schematic structural view of the passage valve of the present invention shown in Figure 1;

Figure 3 is a perspective view showing the structure of the double-chamber blood reservoir of the present invention.

detailed description

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

As shown in FIG. 1 to FIG. 3, the dual-chamber blood reservoir of the present invention comprises a first blood storage chamber 10 and a second blood storage chamber 20, and the first blood storage chamber 10 and the second blood storage chamber 20 pass through a pipeline. The connecting device 30 is connected, the first blood storing chamber 10 and the second blood storing chamber 20 are integrally formed, and the first blood storing chamber 10, the second blood storing chamber 20 and the pipe connecting device 30 are arranged in a type A structure.

The first blood storage chamber 10 is provided with a first chamber 11 for storing blood, and the first chamber 11 is provided with a left heart suction line 12 communicating with the inner chamber of the first chamber 11 The left heart suction line 12 is configured to store the intracardiac suction blood in the first chamber 11; the first chamber 11 is further provided with a venous return tube 13 different from the left heart suction line 12, the vein The return pipe 13 is for storing venous blood in the first chamber 11; the first chamber 11 is provided with a cylindrical first mesh membrane 14 for containing the blood in the first chamber 11 The particles are filtered to ensure the purity of the blood after the body is recovered, and the excessively large particles are prevented from entering the human blood and have an unnecessary influence on human health; the first chamber 11 is provided with a bleeding port 15 and a heart. The inner blood suction and the venous blood flow into the first chamber 11 through the left heart suction line 12 and the venous return tube 13, respectively, and flow out through the bleeding port 15.

The second blood reservoir 20 is provided with a second chamber 21 for storing blood, the second chamber 21 is provided with a right heart suction line 22 communicating with the inner cavity of the second chamber 21 for storing the blood at the time of the right heart suction in the second chamber 21, and in the operation In the process, the blood generated in the chest cavity is recycled; the second chamber 21 is provided with a tubular second filter membrane 23 near the right heart suction conduit 22, and the second chamber 21 is in the second chamber 21 A third sieve membrane 24 is disposed under the second sieve membrane 23, and the third sieve membrane 24 is spaced apart from the second sieve membrane 23, and the second sieve membrane 23 is used for blood to attract the right heart. Or the particles present in the blood of the chest cavity are filtered to ensure the purity of the blood after the body is recovered, and to prevent the excessively large particles from entering the human blood and causing unnecessary influence on human health; the third mesh membrane 24 is used. The blood filtered through the second mesh membrane 23 is again filtered to further ensure the purity of the blood after the body is recovered.

A connecting frame 40 is laterally connected to the second blood storing chamber 20, and the connecting frame 40 is rotatable around the second blood storing chamber 20; the connecting frame 40 is used for fixed connection with the external bracket, so that The double-chamber blood reservoir can be stably suspended.

The pipe connecting device 30 includes a connecting pipe 31 penetrating the first blood storing chamber 10 and the second blood storing chamber 20 and a passage valve 32 held between the connecting pipe 31, and the connecting pipe 31 is close to the first One end of the two blood storage chamber 20 protrudes into the second chamber 21 and communicates with the second sieve membrane 23, and the passage valve 32 is used to open or close the circulation passage of the connecting pipe 31; the passage valve 32 is pivotally connected to the On the connecting pipe 31, the passage valve 32 includes a rotating shaft 321 disposed perpendicularly to the connecting pipe 31, and a through hole 3211 is defined in a middle portion of the rotating shaft 321 , and the through hole 3211 is matched with the connecting pipe 31, and the rotating shaft is arranged. The end of the 321 is provided with a rotating handle 322, and the user rotates the rotating shaft 321 to rotate the rotating shaft 321 .

In use, the through hole 3211 completely coincides with the pipe of the connecting pipe 31, and the flow of blood flowing into the first chamber 11 from the second chamber 21 is the maximum value; the rotating shaft 321 is continued to rotate, and the connecting hole of the through hole 3211 and the connecting pipe 31 is connected. The port becomes smaller, and the flow of blood flowing from the second chamber 21 into the first chamber 11 becomes smaller; when the rotating shaft 321 to the through hole 3211 and the connecting tube 31 do not have a coincident passage, the second chamber 21 and the first The blood flow passage between the chambers 11 is closed, and the passage valve 32 can be rooted According to the actual clinical needs, the blood flow rate is controlled.

In the clinical operation, the user can rotate the shaft 321 as needed, select a suitable time to open or close the blood circulation channel, and open the blood circulation channel after the end of the operation to collect the right heart suction blood through the first chamber 11 to the human blood. Self-use, complete the recycling of blood, simple structure, easy to use, can ensure that the blood in the chest during the operation can be safely and efficiently recovered to the body blood.

In summary, the dual-chamber blood reservoir of the present invention provides a pipe connecting device 30 between the first blood storing chamber 10 and the second blood storing chamber 20, and utilizes the first blood storing chamber 10 and the second blood storing chamber 20, respectively. The human blood generated in different surgical environments is stored, and the connecting valve 31 is opened or closed by the channel valve 32 on the pipe connecting device 30. The structure is simple and convenient to use, and the blood in the chest cavity can be safely and efficiently recovered to the body during the operation. blood.

The above-described embodiments are merely illustrative of several embodiments of the present invention, and are not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims

A double-chamber blood reservoir, comprising: a first blood storage chamber and a second blood storage chamber, wherein the first blood storage chamber and the second blood storage chamber are connected by a pipe connecting device, the first The blood storage chamber is provided with a first chamber for storing blood, and the first chamber is provided with a left heart suction line communicating with the inner chamber of the first chamber, and the left heart suction line is used for the inner heart The blood is stored in the first chamber; the second chamber is provided with a second chamber for storing blood, and the second chamber is provided with a right heart suction line communicating with the chamber of the second chamber. The right heart suction line is configured to store blood when the right heart is attracted in the second chamber.
The dual-chamber blood reservoir according to claim 1, wherein said first chamber is provided with a cylindrical first screen membrane for filtering particles present in the blood in the first chamber.
The double-chamber blood reservoir according to claim 1, wherein the second chamber is provided with a cylindrical second sieve membrane near the right-heart suction line, and the second sieve membrane is used for right The blood present in the heart or the particles present in the blood in the chest are filtered.
The double-chamber blood reservoir according to claim 3, wherein the second chamber is provided with a third mesh membrane below the second sieve membrane, the third sieve membrane and the second sieve Membrane spacing is provided, and the third mesh membrane is used to filter the blood filtered through the second mesh membrane again.
The dual-chamber blood reservoir according to claim 1, wherein said first chamber is further provided with a venous return tube different from a left-hearted suction tube for storing venous blood in The first chamber.
The double-chamber blood reservoir according to claim 1, wherein said pipe connecting means comprises a connecting pipe penetrating said first blood storing chamber and said second blood storing chamber and being held between said connecting tubes The passage valve protrudes from the end of the second blood storage chamber into the second chamber and communicates with the second screen membrane, and the passage valve is used to open or close the connecting tube circulation passage.
The double-chamber blood reservoir according to claim 6, wherein the passage valve is pivotally connected to the connecting pipe, and the passage valve comprises a rotating shaft disposed perpendicularly to the connecting pipe, the rotating A through hole is defined in the middle of the shaft, and the through hole is matched with the connecting pipe and the rotating shaft is disposed at the end of the rotating shaft.
The double-chamber blood reservoir according to claim 1, wherein a connecting frame is laterally connected under the second blood storing chamber, and the connecting frame is rotatable around the second blood storing chamber. The connecting bracket is used for fixed connection with the external bracket.
The dual-chamber blood reservoir according to claim 1, wherein the first blood reservoir and the second blood reservoir are integrally formed.
The dual-chamber blood reservoir according to claim 1, wherein a bleeding port is disposed below the first chamber.