ECMO loop standby and blood recovery integrated device

Abstract

The utility model relates to the technical field of medical treatment, and discloses an ECMO loop standby and blood recovery integrated device which comprises a pre-filling bag arranged on the outer side of a circulating pump and a patient, and a normal saline bag and a blood bag are arranged on the outer side of the pre-filling bag; the pre-filling bag is arranged on the outer side of the normal saline bag, the exhaust assembly is arranged on the outer side of the normal saline bag and used for processing the pre-filling bag, the flushing pipe assembly used for blood transfusion is arranged on the outer side of the pre-filling bag, and the circulating assembly used for blood recovery is arranged on the outer side of the circulating pump. The ECMO integrated device has the advantages that the ECMO blood recovery capacity is obviously improved, the ECMO application range is expanded, after the ECMO integrated device is started, the blood in the intubation tube can be washed and kept unobstructed, the service life of the ECMO can be obviously prolonged, smooth machine withdrawal is guaranteed, wounds caused by re-catheterization are reduced when necessary, the patient cost is reduced, and the ECMO integrated device is worthy of popularization and application. And a guarantee is added for the patient to remove the machine.

Description

Technical Field

[0001] The utility model relates to the field of medical technology, in particular to an ECMO circuit standby and blood recovery integrated device. Background Art

[0002] As an advanced means of life support, extracorporeal membrane oxygenation can provide patients with cardiopulmonary function support and win precious rescue time for critically ill patients who are ineffective in conventional life support. Before ECMO is operated, the total circulation volume is increased by adding priming fluid, thereby maintaining the patient's circulation stability. According to the current clinically commonly used models, a complete set of ECMO circuits requires 550-750ml of blood. When ECMO is withdrawn, it is often processed by direct return or discarding. The disadvantage of this technology is that it will increase the patient's circulation load or waste blood. In the implementation of this technology, a blood protection strategy is applied when ECMO is withdrawn, thereby avoiding the waste of blood and fluctuations in circulation load. It can also reduce allogeneic blood transfusion when the patient needs blood transfusion, further reducing the incidence of transfusion complications. This technology and method can recover about 500ml of blood, which is simple and convenient to operate, avoiding the waste of blood resources. In extracorporeal circulation, blood is often collected through a reflux chamber, and then centrifuged for blood recovery. However, there is no reflux chamber in ECMO, so the application of ECMO pipeline blood recovery technology in ECMO is relatively difficult. There are reports of ECMO being withdrawn and recovered by cutting the tubing connections. This method requires surgical intervention, and there is a risk of contamination during the connection process of cutting the tubing.

[0003] ECMO can quickly stabilize patients with cardiovascular failure and unstable respiratory function. With ECMO's stabilization of the circulatory and respiratory systems, organs can get a chance to fully rest, making it possible to restore organ function. Once organ function reaches the recovery standard, ECMO patients can remove ECMO assistance. However, after ECMO is removed, if there is sudden blood circulation instability within a short period of time, the ECMO device may need to be started again. At this time, the time to start the ECMO device and the difficulty of catheterization will greatly increase the difficulty for doctors and patients. In addition, the tubes are disposable consumables and are expensive, which will once again increase the burden on patients. Utility Model Content

[0004] The purpose of the utility model is to provide an integrated device for ECMO circuit standby and blood recovery to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ECMO circuit standby and blood recovery integrated device, including a circulation pump, and also including:

[0006] A pre-filled bag and a patient are arranged outside the circulating pump, wherein a physiological saline bag and a blood bag are arranged outside the pre-filled bag;

[0007] An exhaust assembly is arranged outside the physiological saline bag for processing the pre-filled bag, a flushing tube assembly for blood transfusion is arranged outside the pre-filled bag, and a circulation assembly for blood recovery is arranged outside the circulation pump.

[0008] Preferably, the exhaust assembly includes a first air tube connected to the inner wall of the physiological saline bag, one end of the first air tube is connected to a first three-way valve, the inner wall of the first three-way valve is connected to a second air tube, and one end of the second air tube is connected to the inner wall of the pre-filled bag.

[0009] Preferably, the inner wall of the pre-filled bag is connected to a third air tube, one end of the third air tube is connected to a second three-way valve, the inner wall of the second three-way valve is connected to a fourth air tube, and the fourth air tube is connected to the inner wall of the blood bag.

[0010] Preferably, the flushing tube assembly includes a blood drainage cannula connected to the inner wall of the first three-way valve, the blood drainage cannula is connected to the inner wall of the patient, the inner wall of the patient is connected to a perfusion cannula, and the perfusion cannula is connected to the inner wall of the second three-way valve.

[0011] Preferably, the circulation component includes a blood supply tube connected to the inner wall of the first three-way valve, one end of the blood supply tube is connected to the inner wall of the circulation pump, the inner wall of the circulation pump is connected to a return pipe, and the return pipe is connected to the inner wall of the second three-way valve.

[0012] Preferably, the inner walls of the blood drainage cannula and the perfusion cannula are both provided with a first breakpoint.

[0013] Preferably, the inner walls of the blood guide tube and the return tube are both provided with a second breakpoint.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model can recycle ECMO blood, which can significantly delay the increase in cardiac load caused by the reflux of a large amount of blood, thereby saving blood and transfusing it to the patient when necessary, significantly improving the blood recovery capacity of ECMO and expanding the application scope of ECMO. After the ECMO integrated device is turned on, it can not only flush the blood in the cannula to keep it unobstructed, but also significantly delay the life of ECMO, thereby ensuring smooth removal of the machine, reducing the trauma caused by re-catheterization when necessary, reducing patient expenses, and increasing protection for patient removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1A schematic diagram of the structure of a preferred embodiment of the ECMO circuit standby and blood recovery integrated device provided by the utility model;

[0017] Figure 2 A schematic diagram of the structure of the exhaust assembly provided by the utility model;

[0018] Figure 3 A schematic diagram of the structure of the flushing pipe assembly provided by the utility model;

[0019] Figure 4 This is a structural schematic diagram of the circulation component provided by the utility model.

[0020] In the figure: 1. circulation pump; 2. pre-filled bag; 3. patient; 4. saline bag; 5. blood bag; 6. exhaust assembly; 61. first trachea; 62. first three-way valve; 63. second trachea; 64. third trachea; 65. second three-way valve; 66. fourth trachea; 7. flushing assembly; 71. blood drainage cannula; 72. perfusion cannula; 8. circulation assembly; 81. blood drainage tube; 82. return tube; 9. first breakpoint; 10. second breakpoint. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 As shown, the ECMO circuit standby and blood recovery integrated device includes a circulation pump 1, by which blood can be extracted and circulated; it also includes a pre-filled bag 2 and a patient 3 arranged on the outside of the circulation pump 1, by which the amount of medicine can be pre-set, so that medical staff can quickly and accurately inject in an emergency; a physiological saline bag 4 and a blood bag 5 are arranged on the outside of the pre-filled bag 2, and the pre-filled bag 2 and the blood bag 5 can be exhausted by arranging the physiological saline bag 4; an exhaust component 6 for processing the pre-filled bag 2 is arranged on the outside of the physiological saline bag 4, and the pre-filled bag 2 and the blood bag 5 can be exhausted by arranging the exhaust component 6; a flushing tube component 7 for blood transfusion is arranged on the outside of the pre-filled bag 2, and blood transfusion can be performed on the blood drainage cannula 71 and the perfusion cannula 72 by arranging the flushing tube component 7; a circulation component 8 for blood recovery is arranged on the outside of the circulation pump 1, and blood circulation can be facilitated by arranging the circulation component 8.

[0023] See also Figure 1 and Figure 2As shown, the exhaust assembly 6 includes a first air pipe 61 connected to the inner wall of the physiological saline bag 4, and the physiological saline bag 4 can be connected by setting the first air pipe 61; one end of the first air pipe 61 is connected to the first three-way valve 62, and the first air pipe 61 can be controlled by setting the first three-way valve 62; the inner wall of the first three-way valve 62 is connected to the second air pipe 63, and one end of the second air pipe 63 is connected to the inner wall of the pre-filled bag 2, and the pre-filled bag 2 can be connected by setting the second air pipe 63; the inner wall of the pre-filled bag 2 is connected to the third air pipe 64, and the pre-filled bag 2 can be connected by setting the third air pipe 64; one end of the third air pipe 64 is connected to the second three-way valve 65, and the third air pipe 64 can be controlled by setting the second three-way valve 65; the inner wall of the second three-way valve 65 is connected to the fourth air pipe 66, and the fourth air pipe 66 is connected to the inner wall of the blood bag 5, and the blood bag 5 can be connected by setting the fourth air pipe 66.

[0024] See also Figure 3 As shown, the flushing tube assembly 7 includes a blood drainage cannula 71 connected to the inner wall of the first three-way valve 62, and the first three-way valve 62 and the patient 3 can be connected by setting the blood drainage cannula 71; the blood drainage cannula 71 is connected to the inner wall of the patient 3, and the inner wall of the patient 3 is connected to the perfusion cannula 72, and the perfusion cannula 72 is connected to the inner wall of the second three-way valve 65, and the patient 3 and the second three-way valve 65 can be connected by setting the perfusion cannula 72.

[0025] See also Figure 4 As shown, the circulation component 8 includes a blood supply tube 81 connected to the inner wall of the first three-way valve 62, one end of which is connected to the inner wall of the circulation pump 1. The first three-way valve 62 and the circulation pump 1 can be connected by setting the blood supply tube 81; the inner wall of the circulation pump 1 is connected to a return pipe 82, and the return pipe 82 is connected to the inner wall of the second three-way valve 65. The circulation pump 1 and the second three-way valve 65 can be connected by setting the return pipe 82.

[0026] See also Figure 3 and Figure 4 As shown, the inner walls of the blood drawing cannula 71 and the perfusion cannula 72 are both provided with a first breakpoint 9, by which the blood drawing cannula 71 and the perfusion cannula 72 can be controlled; the inner walls of the blood drawing tube 81 and the return tube 82 are both provided with a second breakpoint 10, by which the blood drawing tube 81 and the return tube 82 can be controlled.

[0027] Working principle: The worker uses the first trachea 61 and the second trachea 63 to connect the physiological saline bag 4 and the pre-filled bag 2, and uses the third trachea 64 and the fourth trachea 66 to connect the pre-filled bag 2 and the blood bag 5, controls the first breakpoint 9, exhausts the pre-filled bag 2, opens the first three-way valve 62 and the second three-way valve 65, flushes the blood drainage cannula 71 and the perfusion cannula 72, closes the first three-way valve 62 and the second three-way valve 65, and returns the blood in the catheter to the blood bag 5 with the help of the power of the circulation pump 1, and infuses it to the patient 3 through peripheral infusion, opens the first three-way valve 62 and the second three-way valve 65, connects the pre-filled bag 2 and the ECMO circuit circulation pump 1, and ensures the ECMO recirculation state, which is in standby mode.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ECMO circuit standby and blood recovery integrated device, comprising a circulation pump (1), characterized in that: Also includes: A pre-filled bag (2) and a patient (3) are arranged outside the circulation pump (1), and a physiological saline bag (4) and a blood bag (5) are arranged outside the pre-filled bag (2); An exhaust assembly (6) is arranged on the outside of the physiological saline bag (4) for processing the pre-filled bag (2), a flushing tube assembly (7) for blood transfusion is arranged on the outside of the pre-filled bag (2), and a circulation assembly (8) for blood recovery is arranged on the outside of the circulation pump (1).

2. The ECMO circuit standby and blood recovery integrated device according to claim 1, characterized in that: The exhaust assembly (6) comprises a first air tube (61) connected to the inner wall of the physiological saline bag (4), one end of the first air tube (61) is connected to a first three-way valve (62), the inner wall of the first three-way valve (62) is connected to a second air tube (63), and one end of the second air tube (63) is connected to the inner wall of the pre-filled bag (2).

3. The ECMO circuit standby and blood recovery integrated device according to claim 1, characterized in that: The inner wall of the pre-filled bag (2) is connected to a third air pipe (64), one end of the third air pipe (64) is connected to a second three-way valve (65), the inner wall of the second three-way valve (65) is connected to a fourth air pipe (66), and the fourth air pipe (66) is connected to the inner wall of the blood bag (5).

4. The ECMO circuit standby and blood recovery integrated device according to claim 2, characterized in that: The flushing tube assembly (7) includes a blood drainage cannula (71) connected to the inner wall of the first three-way valve (62), the blood drainage cannula (71) is connected to the inner wall of the patient (3), the inner wall of the patient (3) is connected to a perfusion cannula (72), and the perfusion cannula (72) is connected to the inner wall of the second three-way valve (65).

5. The ECMO circuit standby and blood recovery integrated device according to claim 2, characterized in that: The circulation assembly (8) comprises a blood supply tube (81) connected to the inner wall of the first three-way valve (62), one end of the blood supply tube (81) is connected to the inner wall of the circulation pump (1), the inner wall of the circulation pump (1) is connected to a return tube (82), and the return tube (82) is connected to the inner wall of the second three-way valve (65).

6. The ECMO circuit standby and blood recovery integrated device according to claim 4, characterized in that: The inner walls of the blood drainage cannula (71) and the perfusion cannula (72) are both provided with a first breakpoint (9).

7. The ECMO circuit standby and blood recovery integrated device according to claim 5, characterized in that: The inner walls of the blood guide tube (81) and the return tube (82) are both provided with a second breakpoint (10).

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