Left heart drainage tube with exhaust adjusting structure

Abstract

The utility model discloses a left heart drainage tube with an exhaust adjusting structure. The tail end of the drainage tube is integrally connected with a connector, the middle of the connector is connected with a liquid filling tube, the tail of the connector is provided with a one-way valve, the rear end of the one-way valve is provided with a connecting tube, and the connecting tube is provided with a control device capable of monitoring flow and air pressure. The utility model has the functions that the balloon is filled with liquid through the liquid filling valve, the drainage tube is fixed and clamped by the balloon and the clamping cushion, meanwhile, the breathable sticker is pasted for stabilization, the one-way valve can prevent blood from flowing back, the control device monitors the discharge of blood and gas, and the drainage holes in the drainage tube can reduce the blockage condition in the drainage process. The negative pressure in the left ventricle can be calculated according to data of the air pressure sensor, then blood and gas are sucked, the air pressure sensor and the micro electric flow control valve control the flow and flow speed of the blood and gas, the displayer can display the air pressure, the flow speed and the flow, and the buzzer alarm can give an alarm when the air pressure is abnormal or returns to normal.

Description

Technical Field

[0001] This utility model patent belongs to the technical field of medical auxiliary equipment, and specifically relates to a left heart drainage tube with an adjustable exhaust structure. Background Art

[0002] There are many types of left heart drainage tubes for extracorporeal circulation surgery in cardiac surgery, all of which are used to measure the left atrial pressure and drain the blood in the left atrial cavity during extracorporeal circulation surgery, so as to monitor the cardiac load, reduce the pressure of the left heart system, ensure a clear surgical field during open-heart surgery, and exhaust the left heart system. The left heart drainage tubes currently used have greatly reduced the probability of adsorption and adhesion to the left atrial wall tissue structure during negative pressure suction, but they still cannot completely guarantee the drainage effect, resulting in unclear intraoperative vision, affecting surgical operations, requiring the surgeon to repeatedly adjust the position of the left heart drainage tube, prolonging the operation time, and not conducive to patient recovery. At the same time, in open-heart surgery with extracorporeal circulation, the left heart system must be fully vented before the heart is restarted to prevent gas from entering the coronary arteries or systemic circulation, causing poor heart resuscitation and gas embolism in peripheral organs. The current left heart system venting measures are to continuously blow a small amount of carbon dioxide into the surgical field during surgery, inflate the lungs with a ventilator before resuscitation to allow blood in the pulmonary vessels to enter the left heart system, and simultaneously use negative pressure suction at the left heart drainage tube and aortic perfusion needle to draw out the gas. The operation is complicated and prolongs the operation time.

[0003] In order to solve the above problems, this paper proposes a left heart drainage tube with an adjustable exhaust structure. Utility Model Content

[0004] In order to achieve the above-mentioned technical effect, the utility model is implemented through the following technical scheme: a left heart drainage tube with an adjustable exhaust structure, including a drainage tube, a joint, a liquid filling tube, a connecting tube, and a control device. The tail end of the drainage tube is integrally connected to the joint, the middle part of the joint is connected to the liquid filling tube, a one-way valve is arranged at the tail of the joint, a connecting tube is installed at the rear end of the one-way valve, and a control device for monitoring flow and air pressure is arranged on the connecting tube.

[0005] Preferably, the control device also includes a processor, an air pressure sensor, a buzzer alarm, a micro electric flow control valve, a micro negative pressure pump, a display, a control button, a rechargeable power supply, and a USB interface. The processor is telecommunication-connected to the air pressure sensor, the buzzer alarm, the micro electric flow control valve, the micro negative pressure pump, the display, and the control button. The charging port of the processor is electrically connected to the USB interface. The rechargeable power supply provides power to the processor, the air pressure sensor, the buzzer alarm, the micro electric flow control valve, the micro negative pressure pump, the display, and the control button.

[0006] Preferably, the drainage tube also includes a drainage hole, a balloon, a clamping pad, a breathable adhesive patch, and a liquid filling channel. The drainage hole is arranged at the front end of the drainage tube, the balloon and the clamping pad are arranged at the rear end of the drainage tube, the clamping pad is connected to the joint, a breathable adhesive patch is installed at the connection between the clamping pad and the joint, a liquid filling channel is arranged in the wall of the drainage tube and the joint, and the balloon is connected to the liquid filling tube through the liquid filling channel.

[0007] Preferably, the tail end of the filling tube is connected with a filling valve.

[0008] Preferably, a rubber gasket is installed at the connection between the connecting tube and the housing of the control device, and a joint is connected to the rear end of the connecting tube so that it can be installed on the drainage bag.

[0009] Preferably, the processor, air pressure sensor, buzzer alarm, micro electric flow control valve, and rechargeable power supply are installed inside the control device, the micro electric flow control valve is connected to the connecting pipe, the micro negative pressure pump is connected to the micro electric flow control valve, the air pressure sensor is installed on the micro electric flow control valve, the display and control buttons are installed on the upper surface of the control device, and the USB interface is arranged on the lower surface of the control device.

[0010] The beneficial effects of the utility model are:

[0011] During the operation, the drainage tube is inserted into the left atrium, the balloon is filled with fluid through the filling valve, the drainage tube is fixed and clamped with the balloon and clamping cushion, and a breathable adhesive tape is affixed to stabilize it. The one-way valve on the joint can prevent blood reflux. Then the connecting tube is installed on the joint, and the control device on the connecting tube is used to monitor the discharge of blood. The drainage hole on the drainage tube can reduce the blockage during the drainage process. The processor in the control device controls the air pressure sensor, buzzer alarm, micro electric flow control valve, and micro negative pressure pump. The negative pressure in the left ventricle is calculated according to the data of the air pressure sensor, and the micro negative pressure pump pumps blood and gas. Suction, the air pressure sensor and the micro-electric flow control valve control the flow and velocity of blood and gas in the left ventricle. The micro-negative pressure pump and the micro-electric flow control valve are regulated by the control button, and the display can show the air pressure, flow velocity and flow. The buzzer alarm can alarm when the air pressure is abnormal or the air pressure returns to normal. Continuous and stable negative pressure suction can not only avoid the damage caused by left ventricular expansion due to cardiac blood reflux, but also reduce the risk of postoperative pulmonary exudation caused by increased hydrostatic pressure of the pulmonary capillary bed during surgery, avoid the patient's ventilator offline time and postoperative ICU hospitalization time Extension, reduce the economic burden. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for describing the embodiment will be briefly introduced below. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is a structural diagram of the utility model;

[0015] Figure 3 It is the front view of the utility model;

[0016] Figure 4 This utility model Figure 3 A cross-sectional view of

[0017] Figure 5 This utility model Figure 4 A partial cross-sectional view of the middle part;

[0018] Figure 6 It is a structural block diagram of a top view of the utility model;

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] Drainage tube 1, joint 2, filling tube 3, connecting tube 4, control device 5, drainage hole 6, balloon 7, clamping cushion 8, breathable adhesive tape 9, filling channel 10, filling valve 11, one-way valve 12, rubber gasket 13, processor 14, air pressure sensor 15, buzzer alarm 16, micro electric flow control valve 17, micro negative pressure pump 18, display 19, control button 20, rechargeable power supply 21, USB interface 22. 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. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] like Figures 1 to 6As shown, the prior art in this embodiment has the following problems: the inventors found in their work that the currently used left heart drainage tube has greatly reduced the probability of it adsorbing and adhering to the left atrial wall tissue structure during negative pressure suction, but it still cannot completely guarantee the drainage effect, resulting in unclear intraoperative field of view, affecting surgical operations, requiring the surgeon to repeatedly adjust the position of the left heart drainage tube, prolonging the operation time, and being detrimental to patient recovery. At the same time, in open-heart surgery with extracorporeal circulation, the left heart system needs to be fully vented before the heart is re-beated, so as to prevent gas from entering the coronary arteries or systemic circulation, causing poor heart re-beat and gas embolism in peripheral organs. The current left heart system venting measures are to continuously blow a small amount of carbon dioxide into the surgical field during the operation, inflate the lungs with a ventilator before re-beating to allow blood in the pulmonary vessels to enter the left heart system, and simultaneously use negative pressure suction at the left heart drainage tube and the aortic perfusion needle to draw out the gas. The operation is complicated and prolongs the operation time. Therefore, the inventor provides a left heart drainage tube with an adjustable exhaust structure, including a drainage tube 1, a joint 2, a filling tube 3, a connecting tube 4, and a control device 5, wherein the tail end of the drainage tube 1 is integrally connected to the joint 2, the middle part of the joint 2 is connected to the filling tube 3, the tail of the joint 2 is provided with a one-way valve 12, the rear end of the one-way valve 12 is installed with a connecting tube 4, and the connecting tube 4 is provided with a control device 5 that can monitor the flow and air pressure.

[0024] Among them, the control device 5 also includes a processor 14, an air pressure sensor 15, a buzzer alarm 16, a micro electric flow control valve 17, a micro negative pressure pump 18, a display 19, a control button 20, a rechargeable power supply 21, and a USB interface 22. The processor 14 is telecommunication-connected to the air pressure sensor 15, the buzzer alarm 16, the micro electric flow control valve 17, the micro negative pressure pump 18, the display 19, and the control button 20. The charging port of the processor 14 is electrically connected to the USB interface 22. The rechargeable power supply 21 provides power for the processor 14, the air pressure sensor 15, the buzzer alarm 16, the micro electric flow control valve 17, the micro negative pressure pump 18, the display 19, and the control button 20.

[0025] Among them, the drainage tube 1 also includes a drainage hole 6, a balloon 7, a clamping pad 8, a breathable adhesive patch 9, and a liquid filling channel 10. The drainage hole 6 is arranged at the front end of the drainage tube 1, the balloon 7 and the clamping pad 8 are arranged at the rear end of the drainage tube 1, the clamping pad 8 is connected to the joint 2, and a breathable adhesive patch 9 is installed at the connection between the clamping pad 8 and the joint 2, which cooperates with the balloon 7 and the clamping pad 8 to stabilize the drainage tube 1. A liquid filling channel 10 is arranged in the wall of the drainage tube 1 and the joint 2, and the balloon 7 is connected to the liquid filling tube 3 through the liquid filling channel 10.

[0026] The tail end of the filling tube 3 is connected to a filling valve 11 , and the filling valve 11 is used to fill the balloon 7 with liquid.

[0027] A rubber gasket 13 is installed at the connection between the connecting tube 4 and the housing of the control device 5 to protect the connecting tube 4 and prevent wear. The rear end of the connecting tube 4 is connected to a connector 2 and can be installed in a drainage bag.

[0028] Among them, the processor 14, the air pressure sensor 15, the buzzer alarm 16, the micro electric flow control valve 17, and the rechargeable power supply 21 are installed inside the control device 5, the micro electric flow control valve 17 is connected to the connecting pipe 4, the micro negative pressure pump 18 is connected to the micro electric flow control valve 17, the air pressure sensor 15 is installed on the micro electric flow control valve 17, the display 19 and the control button 20 are installed on the upper surface of the control device 5, and the USB interface 22 is arranged on the lower surface of the control device 5 to facilitate charging the rechargeable power supply 21.

[0029] The working principle of the utility model is as follows: during surgery, the drainage tube 1 is inserted into the left ventricle, the balloon 7 is filled with liquid through the filling valve 11, the drainage tube 1 is fixed and clamped with the balloon 7 and the clamping cushion 8, and the breathable adhesive tape 9 is affixed to stabilize it. The one-way valve 12 on the joint 2 can prevent the blood from flowing back into the left ventricle, and then the connecting tube 4 is installed on the joint 2. The control device 5 on the connecting tube 4 is used to monitor the discharge of blood and gas from the left ventricle, wherein the drainage hole 6 on the drainage tube 1 can reduce the blockage during the drainage process, and the processor 14 is used in the control device 5 to control the air pressure sensor 15, the buzzer alarm 16, and the micro-electric flow control valve 17. A micro negative pressure pump 18 calculates the air pressure in the left ventricle according to the data of the air pressure sensor 15. The micro negative pressure pump 18 pumps blood from the left ventricle. The air pressure sensor 15 and the micro electric flow control valve 17 control the flow and flow rate of blood and gas in the left ventricle. The micro negative pressure pump 18 and the micro electric flow control valve 17 are regulated by the control button 20. The display 19 can display the air pressure, flow rate and flow rate. The buzzer alarm 16 gives an alarm when the air pressure is abnormal or when the air pressure returns to normal, which reduces the workload of medical staff, improves the safety of surgery, optimizes user experience, is simple to operate, and has a light structure.

[0030] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only the specific implementation methods described.

Claims

1. A left heart drainage tube with an adjustable exhaust structure, comprising a drainage tube, a joint, a liquid filling tube, a connecting tube, and a control device, characterized in that: The tail end of the drainage tube is integrally connected to the joint, a filling tube is connected to the middle of the joint, a one-way valve is arranged at the tail of the joint, a connecting pipe is installed at the rear end of the one-way valve, and a control device for monitoring flow and air pressure is arranged on the connecting pipe.

2. A left heart drainage tube with an adjustable exhaust structure according to claim 1, characterized in that: The control device also includes a processor, an air pressure sensor, a buzzer alarm, a micro electric flow control valve, a micro negative pressure pump, a display, a control button, a rechargeable power supply, and a USB interface. The processor is connected to the air pressure sensor, the buzzer alarm, the micro electric flow control valve, the micro negative pressure pump, the display, and the control button by telecommunications. The charging port of the processor is electrically connected to the USB interface. The rechargeable power supply provides power for the processor, the air pressure sensor, the buzzer alarm, the micro electric flow control valve, the micro negative pressure pump, the display, and the control button.

3. A left heart drainage tube with an adjustable exhaust structure according to claim 1, characterized in that: The drainage tube also includes a drainage hole, a balloon, a clamping pad, a breathable adhesive patch, and a liquid filling channel. The drainage hole is arranged at the front end of the drainage tube, the balloon and the clamping pad are arranged at the rear end of the drainage tube, the clamping pad is connected to the joint, and a breathable adhesive patch is installed at the connection between the clamping pad and the joint. A liquid filling channel is arranged in the wall of the drainage tube and the joint, and the balloon is connected to the liquid filling tube through the liquid filling channel.

4. A left heart drainage tube with an adjustable exhaust structure according to claim 1, characterized in that: The tail end of the liquid filling pipe is connected with a liquid filling valve.

5. The left heart drainage tube with an adjustable exhaust structure according to claim 1, characterized in that: A rubber gasket is installed at the connection between the connecting pipe and the housing of the control device, and a joint is connected to the rear end of the connecting pipe, which can be installed on the drainage bag.

6. A left heart drainage tube with an adjustable exhaust structure according to claim 2, characterized in that: The processor, air pressure sensor, buzzer alarm, micro electric flow control valve, and rechargeable power supply are installed inside the control device, the micro electric flow control valve is connected to the connecting pipe, the micro negative pressure pump is connected to the micro electric flow control valve, the air pressure sensor is installed on the micro electric flow control valve, the display and control buttons are installed on the upper surface of the control device, and the USB interface is set on the lower surface of the control device.

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