Device and method for accurately adjusting extracorporeal circulation left and right center compression degree

Abstract

The invention discloses a device and method for accurately adjusting the extracorporeal circulation left and right heart compression degree, and relates to the technical field of medical instruments. The device for accurately adjusting the extracorporeal circulation left and right heart compression degree comprises a first connector, a sterile saline bag, a first pipeline, a first flow stopping piece, a second connector and a second pipeline. The first connector is suitable for being installed on a liquid inlet pipeline of the rolling pump. The liquid outlet end of the sterile saline bag is connected with the first joint through a first pipeline; the first flow stopping piece is suitable for being arranged on a liquid inlet pipeline of the rolling pump and clamping and closing the blood inlet end of the first connector; the second joint is suitable for being mounted on a liquid outlet pipeline of the rolling pump, and the second joint is detachably connected with the pulmonary membrane through a second pipeline; the second flow stopping piece is suitable for being arranged on a liquid outlet pipeline of the rolling pump and clamping and closing the bleeding end of the second connector. According to the device and the method for accurately adjusting the extracorporeal circulation left and right centroid compaction degree, the accuracy and the convenience of adjustment of the extracorporeal circulation left and right centroid compaction degree are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a device for adjusting the compression degree of left and right hearts during extracorporeal circulation. Background Art

[0002] With the rapid development of domestic extracorporeal circulation technology, the quality of extracorporeal circulation is also improving rapidly. However, cardiac surgery is becoming more and more complicated, so the operation requirements for perfusionists are also becoming more sophisticated. The adjustment of the compression of the roller pump for extracorporeal circulation is becoming increasingly important. If it is too tight, it will cause blood damage; if it is too loose, it will cause ineffective circulation.

[0003] The main pump is relatively easy to control, and can be roughly adjusted first, then fine-tuned, which is relatively accurate and the adjustment technology is relatively mature. However, the compression of the roller pumps of the left and right hearts is adjusted in different ways by each perfusionist, so the adjusted compression is also different. The deviation of the compression of the left and right hearts is precisely the important reason for hemoglobinuria in extracorporeal circulation.

[0004] In view of this, it is necessary to standardize the compression adjustment method of the roller pump to improve the accuracy and convenience of adjusting the compression of the left and right hearts during extracorporeal circulation. Summary of the invention

[0005] The main purpose of the present invention is to provide a device and method for accurately adjusting the compression degree of the left and right hearts during extracorporeal circulation, aiming to improve the accuracy and convenience of adjusting the compression degree of the left and right hearts during extracorporeal circulation.

[0006] To achieve the above object, the present invention provides a device and method for accurately adjusting the compression degree of the left and right hearts during extracorporeal circulation, the device comprising:

[0007] The first connector is suitable for being installed on the liquid inlet pipeline of the roller pump;

[0008] A sterile saline bag, the liquid outlet of which is connected to the first connector via a first pipeline;

[0009] A first flow stopper, adapted to be disposed on the liquid inlet pipeline of the roller pump and to clamp the blood inlet end of the first connector;

[0010] A second connector, suitable for being installed on the liquid outlet pipeline of the roller pump, the second connector being detachably connected to the lung membrane through a second pipeline; and

[0011] The second flow stopper is suitable for being arranged on the liquid outlet pipeline of the roller pump and clamping the bleeding end of the second connector.

[0012] Optionally, the sterile saline bag and the first pipe connected thereto are arranged perpendicular to a horizontal plane.

[0013] Optionally, the second pipe is at least partially arranged perpendicular to a horizontal plane.

[0014] Optionally, the first flow stopper and the second flow stopper are both pipe clamps.

[0015] Optionally, the second pipeline is a double-male infusion tube.

[0016] Optionally, the sterile saline bag is provided with scale lines for observing the current liquid level height.

[0017] Optionally, the device further comprises a controller, which is electrically connected to the motor of the roller pump and is used to control the operation of the roller pump.

[0018] Optionally, the device further comprises a pressure sensor electrically connected to the controller, and the pressure sensor is arranged on the liquid inlet pipeline of the roller pump.

[0019] To achieve the above object, the present invention further proposes a compression adjustment method, based on the above-mentioned device for accurately adjusting the compression of the left and right hearts during extracorporeal circulation, the compression adjustment method comprises the following steps:

[0020] A first joint and a second joint are respectively installed on the liquid inlet pipeline and the liquid outlet pipeline of the roller pump;

[0021] Connecting a sterile saline bag to the first connector via a first pipe;

[0022] Connecting the first end of the second conduit to the second connector, and connecting the second end of the second conduit to the membrane lung;

[0023] The first flow stopper and the second flow stopper are clamped on the liquid inlet pipeline and the liquid outlet pipeline of the roller pump respectively;

[0024] Rotate the roller pump until the saline in the sterile saline bag flows into the second pipe and fills it;

[0025] detaching the second end of the second tube from the membrane lung;

[0026] erecting the entire second pipe;

[0027] The compression of the roller pump is adjusted until the liquid level in the second pipeline remains unchanged.

[0028] Optionally, after the step of adjusting the compression degree of the roller pump until the liquid level height of the second pipeline remains unchanged, the method further includes:

[0029] Reversing the roller pump to allow the saline in the liquid inlet and outlet pipelines of the roller pump, the first pipeline, and the second pipeline to flow back into the sterile saline bag;

[0030] Remove the sterile saline bag and discard it.

[0031] In the technical solution of the present invention, the device for accurately adjusting the compression degree of the left and right hearts of the extracorporeal circulation includes a first joint, a sterile saline bag, a first pipeline, a first flow stopper, a second joint and a second pipeline; the first joint is suitable for being installed on the liquid inlet pipeline of the roller pump; the liquid outlet end of the sterile saline bag is connected to the first joint through the first pipeline; the first flow stopper is suitable for being arranged on the liquid inlet pipeline of the roller pump and clamping the blood inlet end of the first joint; the second joint is suitable for being installed on the liquid outlet pipeline of the roller pump, and the second joint is detachably connected to the pulmonary membrane through the second pipeline; the second flow stopper is suitable for being arranged on the liquid outlet pipeline of the roller pump and clamping the bleeding end of the second joint. It can be understood that when adjusting the compression of the roller pump, the first joint and the second joint can be respectively installed on the inlet and outlet pipes of the roller pump; then the sterile saline bag is connected to the first joint through the first pipe; then the first end of the second pipe is connected to the second joint, and the second end of the second pipe is connected to the membrane lung; then the first stopper and the second stopper are respectively clamped on the inlet and outlet pipes of the roller pump to prevent the blood flowing out of the vein from flowing into the roller pump through the first joint; then the roller pump is rotated until the saline in the sterile saline bag flows into the second pipe and fills it; the second end of the second pipe is removed from the membrane lung; then the entire second pipe is erected; finally, the compression of the roller pump is adjusted until the liquid level height of the second pipe remains unchanged, and the compression adjustment is completed. It can be seen that the present invention standardizes the pressure regulation method of the roller pump by adopting the above scheme, and greatly improves the accuracy and convenience of adjusting the compression of the left and right hearts of the extracorporeal circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0033] Figure 1 It is a structural schematic diagram of an embodiment of a device for accurately adjusting the compression degree of the left and right hearts during extracorporeal circulation according to the present invention;

[0034] Figure 2 The present invention is a flow chart of a compression adjustment method of an embodiment of a device for accurately adjusting the compression of the left and right hearts during extracorporeal circulation.

[0035] Description of Figure Numbers:

[0036] 100. Roller pump; 200. Membrane lung; 10. First connector; 20. Sterile saline bag; 30. First pipeline; 40. First flow stopper; 50. Second connector; 60. Second flow stopper; 70. Second pipeline.

[0037] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0042] The invention provides a device for accurately adjusting the compression degree of the left and right hearts in extracorporeal circulation.

[0043] Reference Figure 1 In one embodiment of the present invention, the device for accurately adjusting the compression degree of the left and right hearts of the extracorporeal circulation includes a first joint 10, a sterile saline bag 20, a first pipeline 30, a first flow stopper 40, a second joint 50 and a second pipeline 70; the first joint 10 is suitable for being installed on the liquid inlet pipeline of the roller pump 100; the liquid outlet end of the sterile saline bag 20 is connected to the first joint 10 through the first pipeline 30; the first flow stopper 40 is suitable for being arranged on the liquid inlet pipeline of the roller pump 100 and clamping the blood inlet end of the first joint 10; the second joint 50 is suitable for being installed on the liquid outlet pipeline of the roller pump 100, and the second joint 50 is detachably connected to the lung membrane through the second pipeline 70; the second flow stopper 60 is suitable for being arranged on the liquid outlet pipeline of the roller pump 100 and clamping the bleeding end of the second joint 50.

[0044] In this embodiment, the first connector 10 and the second connector 50 can both be 1 / 4 connectors and medical connectors with side holes, which is not limited here.

[0045] Preferably, the first flow stopper 40 and the second flow stopper 60 can be selected as pipe clamps, or other flow stopper devices or structures capable of preventing the flow of fluid in the pipeline, which is not limited here.

[0046] The first pipeline 30 can select a pipeline structure with a puncture needle at one end that can cooperate with the sterile saline bag 20, and the second pipeline 70 can adopt a double-male infusion tube to facilitate the connection between the second connector 50 and the connector on the membrane lung 200, which is not limited here.

[0047] It can be understood that when adjusting the compression of the roller pump 100, the first connector 10 and the second connector 50 can be installed on the inlet pipeline and the outlet pipeline of the roller pump 100 respectively; then the sterile saline bag 20 is connected to the first connector 10 through the first pipe 30; then the first end of the second pipe 70 is connected to the second connector 50, and the second end of the second pipe 70 is connected to the membrane lung 200; then the first flow stopper 40 and the second flow stopper 60 are clamped on the inlet pipeline and the outlet pipeline of the roller pump 100 respectively to prevent the blood and / or air in the pipeline from flowing into the roller pump 100 through the first connector 10; then the roller pump 100 is rotated until the saline in the sterile saline bag 20 flows into the second pipe 70 and fills it; the second end of the second pipe 70 is removed from the membrane lung 200; then the entire second pipe 70 is erected; finally, the compression of the roller pump 100 is adjusted until the liquid level height of the second pipe 70 remains unchanged, and the compression adjustment is completed. It can be seen that the present invention standardizes the pressure regulation method of the roller pump 100 by adopting the above-mentioned scheme, and greatly improves the accuracy and convenience of adjusting the compression degree of the left and right hearts during extracorporeal circulation.

[0048] To allow the liquid to flow in the pressure regulating pipeline by gravity, refer to Figure 1In one embodiment, the sterile saline bag 20 and the first conduit 30 connected thereto are arranged perpendicular to the horizontal plane. Similarly, the second conduit 70 may be arranged at least partially perpendicular to the horizontal plane.

[0049] Reference Figure 1 In one embodiment, the sterile saline bag 20 may be provided with a scale line for observing the current liquid level height, so that medical staff can timely understand the remaining amount of saline during the pressure adjustment process to avoid excessive liquid outflow.

[0050] In one embodiment, the device may further include a controller, which is electrically connected to the motor of the roller pump 100 and is used to control the operation of the roller pump 100 .

[0051] In this embodiment, the device further includes a pressure sensor electrically connected to the controller, and the pressure sensor is disposed on the liquid inlet pipeline of the roller pump 100. This can help improve the therapeutic effect of extracorporeal circulation and the accuracy of the roller pump 100's compression adjustment.

[0052] The present invention also proposes a compression adjustment method, based on the above-mentioned device for accurately adjusting the compression of the left and right hearts of the extracorporeal circulation, combined with Figure 1 and Figure 2 In one embodiment, the compression adjustment method comprises the following steps:

[0053] S10, installing a first connector 10 and a second connector 50 on the liquid inlet pipeline and the liquid outlet pipeline of the roller pump 100 respectively;

[0054] S20, connecting the sterile saline bag 20 to the first connector 10 through the first pipe 30;

[0055] S30, connecting the first end of the second pipe 70 to the second connector 50, and connecting the second end of the second pipe 70 to the membrane lung 200;

[0056] S40, clamping the first flow stopper 40 and the second flow stopper 60 on the liquid inlet pipeline and the liquid outlet pipeline of the roller pump 100 respectively, so as to prevent the blood flowing out of the vein from flowing into the roller pump 100 through the first connector 10;

[0057] S50, rotating the roller pump 100 until the saline in the sterile saline bag 20 flows into the second pipe 70 and fills it;

[0058] S60, removing the second end of the second pipe 70 from the membrane lung 200;

[0059] S70, erecting the entire second pipe 70;

[0060] S80, adjusting the compression degree of the roller pump 100 until the liquid level height of the second pipeline 70 remains unchanged.

[0061] In the present invention, when it is necessary to adjust the compression of the roller pump 100, the first connector 10 and the second connector 50 can be respectively installed on the inlet and outlet pipelines of the roller pump 100; then the sterile saline bag 20 is connected to the first connector 10 through the first pipe 30; then the first end of the second pipe 70 is connected to the second connector 50, and the second end of the second pipe 70 is connected to the membrane lung 200; then the first stopper 40 and the second stopper 60 are clamped on the inlet and outlet pipelines of the roller pump 100 respectively to prevent the blood flowing out of the vein from flowing into the roller pump 100 through the first connector 10; then the roller pump 100 is rotated until the saline in the sterile saline bag 20 flows into the second pipe 70 and fills it; the second end of the second pipe 70 is removed from the membrane lung 200; then the entire second pipe 70 is erected; finally, the compression of the roller pump 100 is adjusted until the liquid level height of the second pipe 70 remains unchanged, and the compression adjustment is completed. It can be seen that the present invention standardizes the pressure regulation method of the roller pump 100 by adopting the above-mentioned scheme, and greatly improves the accuracy and convenience of adjusting the compression degree of the left and right hearts during extracorporeal circulation.

[0062] Furthermore, in one embodiment, after the step S80 of adjusting the compression degree of the roller pump 100 until the liquid level height of the second pipeline 70 remains unchanged, the method may further include:

[0063] S90, reversing the roller pump 100 to allow the saline in the liquid inlet and outlet pipelines of the roller pump 100, the first pipeline 30, and the second pipeline 70 to flow back into the sterile saline bag 20;

[0064] S100, remove the sterile saline bag 20 and discard it.

[0065] During operation, a joint is first installed at the left and right heart pump inlet, an external sterile saline bag 20 is connected, and a joint is also installed at the pump outlet, the joint is connected to the membrane lung 200 with a double-male infusion tube, and then the distal end of the saline installation and the distal end of the double-male infusion tube at the pump outlet are clamped with a pipe clamp, and then the roller pump 100 is gently rotated until the liquid fills the double-male infusion tube, and then the double-male infusion tube is removed from the membrane lung 200 and stretched (erected) to a certain height, at this time, the compression of the left and right hearts can be accurately adjusted (rotating the adjustment knob of the roller pump 100), until the liquid level height does not change, that is, the pressure adjustment is completed. It can be seen that by adopting the above-mentioned pressure adjustment method, the accuracy of the compression of the left and right hearts in extracorporeal circulation is greatly improved.

[0066] In addition, after the adjustment is completed, the left and right hearts can be turned upside down to recover the saline in the left and right heart tubes into the sterile saline bag 20, and finally the sterile saline bag 20 can be discarded to prevent cross infection caused by repeated use.

[0067] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A device for accurately adjusting the compression of the left and right hearts during extracorporeal circulation, characterized in that: The device comprises: The first connector is suitable for being installed on the liquid inlet pipeline of the roller pump; A sterile saline bag, the liquid outlet of which is connected to the first connector via a first pipeline; A first flow stopper, adapted to be disposed on the liquid inlet pipeline of the roller pump and to clamp the blood inlet end of the first connector; A second connector, suitable for being installed on the liquid outlet pipeline of the roller pump, the second connector being detachably connected to the lung membrane through a second pipeline; and The second flow stopper is suitable for being arranged on the liquid outlet pipeline of the roller pump and clamping the bleeding end of the second connector.

2. The device for accurately adjusting the compression of the left and right hearts during extracorporeal circulation according to claim 1, characterized in that: The sterile saline bag and the first pipeline connected thereto are arranged perpendicular to a horizontal plane.

3. The device for accurately adjusting the compression degree of the left and right heart of the extracorporeal circulation as claimed in claim 1, characterized in that: The second pipeline is at least partially arranged perpendicular to the horizontal plane.

4. The device for accurately adjusting the compression of the left and right hearts during extracorporeal circulation according to claim 1, characterized in that: The first flow stopper and the second flow stopper are both pipe clamps.

5. The device for accurately adjusting the compression degree of the left and right heart of the extracorporeal circulation as claimed in claim 1, characterized in that: The second pipeline is a double-male infusion tube.

6. The device for accurately adjusting the compression degree of the left and right heart of the extracorporeal circulation as claimed in claim 1, characterized in that: The sterile saline bag is provided with a scale line for observing the current liquid level height.

7. The device for accurately adjusting the compression of the left and right heart during extracorporeal circulation according to claim 1, characterized in that: The device also includes a controller, which is electrically connected to the motor of the roller pump and is used to control the operation of the roller pump.

8. The device for accurately adjusting the compression degree of the left and right heart during extracorporeal circulation according to claim 7, characterized in that: The device also includes a pressure sensor electrically connected to the controller, and the pressure sensor is arranged on the liquid inlet pipeline of the roller pump.

9. A method for adjusting compression, based on the device for accurately adjusting the compression of left and right hearts during extracorporeal circulation as claimed in any one of claims 1 to 8, characterized in that: The compression adjustment method comprises the following steps: A first joint and a second joint are respectively installed on the liquid inlet pipeline and the liquid outlet pipeline of the roller pump; Connecting a sterile saline bag to the first connector via a first pipe; Connecting the first end of the second conduit to the second connector, and connecting the second end of the second conduit to the membrane lung; The first flow stopper and the second flow stopper are clamped on the liquid inlet pipeline and the liquid outlet pipeline of the roller pump respectively; Rotate the roller pump until the saline in the sterile saline bag flows into the second pipe and fills it; detaching the second end of the second tube from the membrane lung; erecting the entire second pipeline; The compression of the roller pump is adjusted until the liquid level in the second pipeline remains unchanged.

10. The method for adjusting the compression degree according to claim 9, characterized in that: After the step of adjusting the compression degree of the roller pump until the liquid level height of the second pipeline remains unchanged, the method further includes: Reversing the roller pump to allow the saline in the liquid inlet and outlet pipelines of the roller pump, the first pipeline, and the second pipeline to flow back into the sterile saline bag; Remove the sterile saline bag and discard it.

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