Oxygen-carrying perfusion device

Abstract

The utility model provides an oxygen-carrying perfusion device. The oxygen-carrying perfusion device specifically comprises a kidney perfusion operation box and a portable oxygen generation unit. The kidney perfusion operation box is additionally provided with an oxygen adjusting unit, and the oxygen adjusting unit comprises an oxygen adjusting control panel, an oxygen flow adjusting valve, an oxygen flow sensor and an oxygen concentration sensor. The portable oxygen generation unit comprises an oxygen generation device control panel and an oxygen generation device, an output pipeline of the oxygen generation device is communicated with an oxygen flow regulating valve, a user inputs an instruction from a control display of the kidney perfusion operation box, and a main control panel of the kidney perfusion operation box is communicated with the oxygen generation device control panel and an oxygen regulating control panel. The oxygen adjusting control panel and the oxygen generating device control panel control the opening size of the oxygen flow adjusting valve and the output duty ratio of a compressor of the oxygen generating device to achieve control over the flow and concentration of oxygen input by the displayer. By means of the structure, a user can adjust oxygen supply parameters in real time according to requirements, and therefore convenient and flexible kidney oxygen-carrying perfusion is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of transplant organ transportation, preservation and perfusion equipment, in particular to an oxygen-carrying perfusion device. Background Art

[0002] The kidney perfusion transport box is a device for transporting, preserving and low-temperature mechanical perfusion of donor kidneys for transplantation. The kidney perfusion transport box can extend the storage time of donor kidneys, evaluate the quality of donor kidneys, and reduce the incidence of postoperative DGF (Delayed Graft Function). It is now fully used in organ transplant centers around the world.

[0003] Renal hypothermic perfusion can be divided into two types: anaerobic perfusion and oxygenated perfusion. Anaerobic hypothermic perfusion involves pumping a 2-8°C perfusate into the renal artery and out the renal vein for circulation. Oxygenated hypothermic perfusion involves first adding oxygen to the perfusate through dissolution or membrane exchange to raise the oxygen partial pressure to a certain level. The oxygenated perfusate is then pumped into the renal artery and out the renal vein for circulation.

[0004] In the existing technology, there is a lack of a suitable oxygen-carrying perfusion device to facilitate the linkage between the perfusion operation box and the oxygen production device, so that the user can easily adjust parameters such as oxygen flow and concentration to match the oxygen required by the oxygen-rich perfusion liquid in real time. Utility Model Content

[0005] The technical problem to be solved by the present invention is to provide an oxygen-carrying perfusion device in order to overcome the defects in the prior art that the kidney perfusion operation box and the oxygen generator are not convenient for real-time adjustment of oxygen supply parameters and have poor adaptability.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] An oxygen-carrying perfusion device for providing oxygen to a renal perfusion device comprises a renal perfusion operation box and a portable oxygen generator unit. The renal perfusion operation box comprises a main control unit and an oxygen regulating unit. The main control unit comprises a main control board. The oxygen regulating unit comprises an oxygen regulating control board, an oxygen flow regulating valve, an oxygen flow sensor, and an oxygen concentration sensor. The main control board is electrically connected to the oxygen regulating control board, which is electrically connected to the oxygen flow regulating valve, the oxygen flow sensor, and the oxygen concentration sensor. An output pipeline of the portable oxygen generator unit is in communication with the oxygen flow regulating valve. The main control board is configured to control the portable oxygen generator unit to supply oxygen to the oxygen regulating unit according to user instructions. The oxygen regulating control board is configured to control the opening size of the oxygen flow regulating valve according to instructions from the main control board and / or adjust the flow rate and concentration of oxygen flowing into the oxygen regulating unit according to detection values ​​of the oxygen flow sensor and the oxygen concentration sensor, and output oxygen.

[0008] In this solution, the oxygen perfusion device builds upon the existing renal perfusion system by improving the main control panel, adding an oxygen regulation control panel, and a portable oxygen generator. This allows users to adjust various oxygen supply parameters in real time based on the perfusate's oxygen demand, enabling oxygen perfusion and real-time adjustment. This improves the compatibility of the oxygen supply between the renal perfusion system and the oxygen generator. An oxygen flow sensor detects the oxygen flow rate, while an oxygen concentration sensor measures the oxygen concentration. These signals are fed back to the main control panel, enabling timely adjustment of oxygen flow rate, concentration, and other parameters.

[0009] Preferably, the portable oxygen generator unit includes an oxygen generator control panel and an oxygen generator, the oxygen generator includes a molecular sieve oxygen generator, the oxygen generator control panel is electrically connected to the main control panel, the oxygen generator control panel is used to control the molecular sieve oxygen generator to provide oxygen according to the instructions of the main control panel, the molecular sieve oxygen generator includes a molecular sieve and a compressor, the air inlet end of the molecular sieve is connected to the compressor, the compressor is connected to the outside air, the air outlet end of the molecular sieve is connected to the oxygen flow regulating valve through the output pipeline, and the oxygen generator control panel is electrically connected to the compressor.

[0010] In this solution, the main control board, through the oxygen concentrator control board, can control various parameters of the oxygen provided by the molecular sieve oxygen concentrator, such as flow rate, concentration, and flow rate. Providing oxygen through the molecular sieve oxygen concentrator in the form of molecular sieve oxygen can improve oxygen purity and concentration. By connecting the compressor to the molecular sieve's air inlet, the pressure of the air entering the molecular sieve oxygen concentrator is increased, improving the oxygen production efficiency and purity of the molecular sieve oxygen concentrator. Based on changes in oxygen concentration and flow rate, the oxygen concentrator control board adjusts the compressor's output duty cycle, dynamically adjusting the flow rate and improving the oxygen supply compatibility between the renal perfusion operation box and the oxygen concentrator.

[0011] Preferably, the molecular sieve oxygen concentrator includes a pressure sensor, which is electrically connected to the oxygen concentrator control board and is arranged in the output pipeline.

[0012] In this solution, a pressure sensor is electrically connected to the oxygen concentrator control board and placed in the output pipeline. The pressure sensor detects oxygen pressure and feeds the pressure signal back to the control board. The oxygen concentration is proportional to the internal pressure of the oxygen concentrator, which is in turn proportional to the compressor. The control board controls the compressor's output duty cycle based on the pressure signal, thereby improving coordination between the renal perfusion operation box and the oxygen concentrator, and regulating the oxygen flow rate of the oxygen-carrying perfusion device.

[0013] Preferably, the portable oxygen production unit includes an oxygen cylinder, the gas outlet end of the oxygen cylinder is connected to the oxygen flow regulating valve through a flow valve, and the oxygen flow regulating valve adjusts the oxygen output by the oxygen cylinder according to the instructions of the main control board.

[0014] In this solution, the oxygen production unit uses oxygen cylinders instead of molecular sieve oxygen machines, allowing users to carry the amount of oxygen required for the transfer process in advance instead of generating oxygen in real time, reducing the power required during the transfer process.

[0015] Preferably, the main control unit further includes a control display, which is electrically connected to the main control board. The control display is used to receive user instructions and transmit the instructions to the main control board.

[0016] In this solution, by setting up a control display and receiving user instructions, and transmitting the instructions to the main control board, the oxygen perfusion device can adjust the required oxygen flow and concentration, start or stop oxygen supply, and select different oxygen production devices according to user instructions.

[0017] The positive and progressive effect of this utility model lies in that, based on the existing renal perfusion operation box, this oxygen-carrying perfusion device improves the main control board, adds an oxygen regulation control board, and a portable oxygen generator unit. This allows the user to adjust various oxygen supply parameters in real time based on the oxygen demand of the perfusate, thereby achieving oxygen-carrying perfusion and real-time adjustment, and improving the oxygen supply compatibility between the renal perfusion operation box and the oxygen generator unit. Specifically, the oxygen flow rate is detected by an oxygen flow sensor, and the oxygen concentration is detected by an oxygen concentration sensor. These signals are fed back to the main control board, enabling timely adjustment of oxygen supply parameters such as flow rate and concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the oxygen-carrying perfusion device of Example 1 of the present invention.

[0019] Figure 2 This is a process diagram of the flow control method of the oxygen-carrying perfusion device in Example 1 of the present invention.

[0020] Figure 3 This is a schematic structural diagram of the oxygen-carrying perfusion device of Example 2 of the present utility model.

[0021] Figure 4 Schematic diagram of the interface design of the control display of Example 1 and Example 2 of the present utility model.

[0022] Description of reference numerals:

[0023] Oxygen generator 4

[0024] Oxygen generator control panel 8

[0025] Portable oxygen generator unit 9 oxygen flow regulating valve 10

[0026] Oxygen flow sensor 11

[0027] Oxygen concentration sensor 12

[0028] Oxygen regulation control panel 13

[0029] Oxygen conditioning unit 14

[0030] Main control board 15

[0031] Main control unit 16

[0032] Control Display 17

[0033] Kidney perfusion operation box 18 DETAILED DESCRIPTION

[0034] Two preferred embodiments are given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0035] Example 1

[0036] like Figure 1 As shown, this embodiment provides an oxygen-carrying perfusion device for providing oxygen to a renal perfusion device. The oxygen-carrying perfusion device includes a renal perfusion operation box 18 and a portable oxygen generator 9. The renal perfusion operation box 18 includes a main control unit 16 and an oxygen regulating unit 14. The main control unit 16 includes a main control board 15. The oxygen regulating unit 14 includes an oxygen regulating control board 13, an oxygen flow regulating valve 10, an oxygen flow sensor 11, and an oxygen concentration sensor 12. In this embodiment, the portable oxygen generator 9 includes an oxygen generator control board 8 and an oxygen generator 4. The oxygen generator 4 is specifically a portable molecular sieve oxygen generator. The oxygen generator control board 8 is an electronic control board installed in the molecular sieve oxygen generator for controlling the oxygen supply.

[0037] The main control board 15 is electrically connected to the oxygen regulating control board 13 and the oxygen generator control board 8. The oxygen regulating control board 13 is electrically connected to the oxygen flow regulating valve 10, the oxygen flow sensor 11, and the oxygen concentration sensor 12. The output pipeline of the molecular sieve oxygen generator is connected to the oxygen flow regulating valve 10. The main control board 15 is used to control the portable oxygen generator 9 to provide oxygen to the oxygen regulating unit 14 according to user instructions. Specifically, the oxygen generator control board 8 is used to control the molecular sieve oxygen generator to provide oxygen according to instructions from the main control board 15. The oxygen regulating control board 13 is used to control the opening size of the oxygen flow regulating valve 10 according to instructions from the main control board 15 and / or adjust the oxygen flow and concentration flowing into the oxygen regulating unit 14 according to the flow value and concentration value detected by the oxygen flow sensor 11 and the oxygen concentration sensor 12, and output oxygen.

[0038] In this embodiment, the main control board 15, through the oxygen concentrator control board 8, can control various parameters of the oxygen provided by the molecular sieve oxygen concentrator, such as flow rate and concentration. This oxygen-carrying perfusion device, based on existing kidney perfusion operation boxes, improves upon the main control board 15 by adding an oxygen adjustment control board 13 and a portable oxygen concentrator 9. This allows users to adjust various oxygen supply parameters in real time based on the perfusate's oxygen demand, thereby enabling oxygen-carrying perfusion and real-time adjustment, improving the compatibility of oxygen supply between the kidney perfusion operation box 18 and the portable oxygen concentrator 9. The oxygen flow rate is detected by the oxygen flow sensor 11, and the oxygen concentration is detected by the oxygen concentration sensor 12. These signals are fed back to the main control board 15, which then controls the oxygen concentrator control board 8, enabling timely adjustment of oxygen supply parameters such as flow rate and flow velocity.

[0039] In this embodiment, the oxygen generator 4 uses molecular sieve oxygen generation. The molecular sieve oxygen generator includes a molecular sieve and a compressor (not shown). The molecular sieve's air inlet is connected to the compressor, which is in turn connected to the outside air. The molecular sieve's air outlet is connected to the oxygen flow control valve 10 via an output pipeline. Based on changes in oxygen concentration and flow, the oxygen generator control board 8 adjusts the compressor's output duty cycle, dynamically regulating oxygen concentration and improving the oxygen supply compatibility between the renal perfusion operation box 18 and the oxygen generator 4.

[0040] like Figure 2 As shown, in this embodiment, the oxygen flow control valve 10 is controlled by the feedback data of the oxygen flow sensor 11, and the rotation angle of the output oxygen flow control valve 10 is calculated by the PID (proportional, integral, differential) algorithm and compared with the target flow of the preset instruction. The size of the opening of the air inlet end of the oxygen flow control valve 10 is adjusted in real time to achieve a stable flow output.

[0041] The molecular sieve oxygen concentrator includes a pressure sensor (not shown in the figure), which is electrically connected to the oxygen concentrator control board 8 and is arranged in the output pipeline of the molecular sieve oxygen concentrator.

[0042] In this embodiment, a pressure sensor is electrically connected to the oxygen concentrator control board 8, so that the internal pressure of the molecular sieve oxygen concentrator detected by the pressure sensor is fed back to the oxygen concentrator control board 8. Based on the current pressure feedback value, the oxygen concentrator control board 8 controls the compressor's output duty cycle (i.e., adjusts the compressor's operating power) and coordinates with the oxygen flow control valve 10 to achieve oxygen output at a set flow rate and concentration, thereby improving the coordination between the renal perfusion operation box 18 and the oxygen concentrator 4 and regulating the oxygen supply flow of the oxygen-carrying perfusion device.

[0043] Preferably, the main control unit 16 further includes a control display 17, which is electrically connected to the main control board 15 and is used to receive user instructions and transmit the instructions to the main control board 15. The interface of the control display 17 is as follows: Figure 4 shown.

[0044] In this embodiment, by controlling the display 17 to receive user instructions and transmitting the user-selected instructions to the main control board 15, the oxygen-carrying perfusion device can adjust the required oxygen flow rate and concentration, start or stop oxygen supply, and select different oxygen production devices according to the user instructions.

[0045] Example 2

[0046] like Figure 3 As shown, this embodiment provides another oxygen-carrying perfusion device, which is substantially the same as the oxygen-carrying perfusion device of Example 1, except that:

[0047] In this embodiment, the portable oxygen supply unit provides oxygen in the form of oxygen cylinders, that is, the oxygen supply unit includes at least one portable oxygen cylinder (not shown in the figure), the gas outlet end of the oxygen cylinder is connected to the oxygen flow regulating valve 10 through a flow valve, and the oxygen flow regulating valve 10 adjusts the oxygen output of the oxygen cylinder according to the instructions of the main control board 15.

[0048] When the oxygen generator is an oxygen cylinder, Figure 4 As shown, the user can also select the cylinder oxygen supply and set the required oxygen flow rate on the control display interface. The oxygen adjustment control panel 13 will automatically adjust the oxygen flow rate to the set value through the oxygen flow control valve 10. The control display 17 receives user instructions and transmits the user's selected instructions to the main control panel 15, so that the oxygen carrying and perfusion device can start or stop oxygen supply according to the user's instructions by adjusting the required oxygen flow rate.

[0049] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. An oxygen-carrying perfusion device for providing oxygen to a kidney perfusion device, characterized in that: The oxygen-carrying perfusion device includes a kidney perfusion operation box and a portable oxygen generating unit, the kidney perfusion operation box includes a main control unit and an oxygen regulating unit, the main control unit includes a main control board, and the oxygen regulating unit includes an oxygen regulating control board, an oxygen flow regulating valve, an oxygen flow sensor, and an oxygen concentration sensor; The main control board is electrically connected to the oxygen regulating control board, and the oxygen regulating control board is electrically connected to the oxygen flow regulating valve, the oxygen flow sensor and the oxygen concentration sensor; The output pipeline of the portable oxygen concentrator is connected to the oxygen flow regulating valve. The main control board is used to control the portable oxygen concentrator to provide oxygen to the oxygen regulating unit according to user instructions. The oxygen regulating control board is used to control the opening size of the oxygen flow regulating valve according to the instructions of the main control board and / or adjust the flow and concentration of oxygen flowing into the oxygen regulating unit according to the detection values ​​of the oxygen flow sensor and the oxygen concentration sensor, and output oxygen.

2. The oxygen-carrying perfusion device according to claim 1, wherein: The portable oxygen concentrator includes an oxygen concentrator control panel and an oxygen concentrator. The oxygen concentrator includes a molecular sieve oxygen concentrator. The oxygen concentrator control panel is electrically connected to the main control panel. The oxygen concentrator control panel is used to control the molecular sieve oxygen concentrator to provide oxygen according to instructions from the main control panel. The molecular sieve oxygen concentrator includes a molecular sieve and a compressor. The air inlet end of the molecular sieve is connected to the compressor, and the compressor is connected to the outside air. The air outlet end of the molecular sieve is connected to the oxygen flow regulating valve through the output pipeline. The oxygen concentrator control panel is electrically connected to the compressor.

3. The oxygen-carrying perfusion device according to claim 2, wherein: The molecular sieve oxygen generator includes a pressure sensor, which is electrically connected to the oxygen generator control board and is arranged in the output pipeline.

4. The oxygen-carrying perfusion device according to claim 1, wherein: The portable oxygen production unit includes an oxygen cylinder, the gas outlet end of the oxygen cylinder is connected to the oxygen flow regulating valve through a flow valve, and the flow regulating valve adjusts the oxygen output by the oxygen cylinder according to the instruction of the main control board.

5. The oxygen-carrying perfusion device according to any one of claims 1 to 4, characterized in that: The main control unit further includes a control display, which is electrically connected to the main control board. The control display is used to receive user instructions and transmit the instructions to the main control board.

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