Percutaneous puncture minimally invasive heart perfusion device

Abstract

A percutaneous puncture minimally invasive heart perfusion device comprises a puncture needle used for puncture and a conical puncture head arranged at one end of the puncture needle, and further comprises a plugging assembly, the outer side of the puncture needle is sleeved with a catheter, a perfusion pipeline and a drainage pipeline are symmetrically fixed to the inner wall of the catheter, and a perfusion hole is formed in the position, close to one end, of the catheter; a drainage hole staggered with the perfusion hole is formed in the other side of the catheter, and plugging assemblies are arranged at the positions, corresponding to the perfusion hole and the drainage hole, of the puncture needle; the plugging assembly comprises a first spherical air bag, a second spherical air bag and an inflation and deflation pipeline, the first spherical air bag is fixed to the position, corresponding to the perfusion hole, of the puncture needle, the second spherical air bag is fixed to the position, corresponding to the drainage hole, of the puncture needle, and one side of the first spherical air bag and one side of the second spherical air bag are both connected with the inflation and deflation pipeline connected with the outside. The utility model has the advantages of novel structure and ingenious conception, is convenient to block the filling hole and the liquid discharge hole, and avoids backflow when the filling hole and the liquid discharge hole are not used.

Description

Technical Field

[0001] This utility model relates to a perfusion device, specifically a percutaneous minimally invasive cardiac perfusion device. Background Technology

[0002] The heart is one of the most important organs in vertebrates. Its main function is to propel blood flow, providing sufficient blood volume to organs and tissues to supply oxygen and various nutrients, and removing metabolic end products (such as carbon dioxide, inorganic salts, urea, and uric acid), thus maintaining normal cell metabolism and function. When the heart malfunctions, systemic blood supply and return become impaired, leading to symptoms such as chest pain, shortness of breath, fatigue, palpitations, dizziness, and fainting. Many of these problems are caused by organic heart disease, necessitating cardiac surgery to repair or replace the heart. Cardiac surgery is inseparable from extracorporeal circulation, a life support technique that uses a series of specialized artificial devices to drain venous blood returning to the heart outside the body, where it undergoes artificial gas exchange, temperature regulation, and filtration before being returned to the arterial system. With extracorporeal circulation, the blood in the heart can be drained, allowing surgeons to clearly visualize the diseased cardiac structure and achieve the goal of repairing the heart. To achieve this process, the heart needs to be stopped and able to tolerate the ischemia during the operation for an extended period. This requires perfusing the heart with cardioplegic solution and myocardial protectant via a perfusion needle at the aortic root.

[0003] Existing percutaneous minimally invasive cardiac perfusion devices generally only have perfusion tubing, which is inconvenient when drainage is needed as there is no drainage channel. Furthermore, backflow is prone to occur in the tubing when perfusion or drainage is not being performed, which is not conducive to their use. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a percutaneous minimally invasive cardiac perfusion device, which effectively solves the problems that existing percutaneous minimally invasive cardiac perfusion devices generally only have perfusion channels, which are inconvenient when drainage is required, lack drainage channels, and are prone to backflow when not performing perfusion or drainage, which is not conducive to use.

[0005] To achieve the above objectives, the present invention provides the following technical solution: The present invention includes a puncture needle for puncture and a conical puncture head provided at one end of the puncture needle, and also includes a sealing component. A catheter is sleeved on the outer side of the puncture needle, and an infusion pipe and a drainage pipe are symmetrically fixed on the inner wall of the catheter. An infusion hole is opened near one end of the catheter, and a drainage hole is opened on the other side of the catheter, staggered with the infusion hole. A sealing component is provided at the puncture needle corresponding to the infusion hole and the drainage hole.

[0006] The sealing assembly includes a first spherical airbag, a second spherical airbag, and an inflation / deflation conduit. The first spherical airbag is fixed at the injection port corresponding to the puncture needle, and the second spherical airbag is fixed at the drainage port corresponding to the puncture needle. Both the first and second spherical airbags are connected to an inflation / deflation conduit on one side, which is connected to the outside. An infusion tube is connected to the injection conduit, and one end of the infusion tube is connected to an infusion fluid storage container. An infusion pump is installed near the infusion fluid storage container on the infusion tube.

[0007] Preferably, both the injection pipe and the drainage pipe are made of flexible materials.

[0008] Preferably, both the injection pipe and the drainage pipe are provided with through holes for communication between them at the injection hole position and the drainage pipe position corresponding to the drainage hole position.

[0009] Preferably, the infusion tube is fitted with a heater for heating the infusion fluid.

[0010] Preferably, a flow meter is also installed on the infusion tube.

[0011] Preferably, the injection holes and drainage holes are staggered.

[0012] Beneficial Effects: In use, this invention involves inserting a needle through the skin, across the intercostal space, and under endoscopic guidance through a purse-string sutured into the ascending aorta. During infusion, the infusion solution is stored in a container and transported via an infusion tube to the infusion pipeline. The solution is then discharged through the through-hole and infusion port on the pipeline. During infusion, the second spherical air bladder inside the drainage pipeline is inflated via an inflation / deflation pipe. This inflation and expansion of the second spherical air bladder compresses the drainage pipeline, sealing the drainage port. When sealing the infusion port is necessary, only the first spherical air bladder needs to be inflated, preventing backflow from the infusion and drainage ports when not in use, thus facilitating use. This invention features a novel and ingenious structure, facilitating the sealing of the infusion and drainage ports and preventing backflow when not in use, thus improving usability. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the puncture needle structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the catheter structure of this utility model;

[0017] The following are the labels in the diagram: 1. Puncture needle; 2. Conical puncture head; 3. Occlusion assembly; 4. First spherical balloon; 5. Second spherical balloon; 6. Inflation / deflation tubing; 7. Catheter; 8. Infusion tubing; 9. Drainage tubing; 10. Infusion port; 11. Drainage port; 12. Through hole; 13. Infusion tubing; 14. Infusion fluid storage container; 15. Infusion pump; 16. Heater. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1-3 The specific embodiments of this utility model will be described in further detail.

[0019] Example 1, by Figure 1-3 This invention provides a percutaneous minimally invasive cardiac perfusion device, including a puncture needle 1 for puncture and a conical puncture head 2 at one end of the puncture needle 1. It also includes a sealing component 3, a first spherical balloon 4, a second spherical balloon 5, an inflation / deflation pipe 6, a catheter 7, an infusion pipe 8, a drainage pipe 9, an infusion hole 10, a drainage hole 11, a through hole 12, an infusion tube 13, an infusion fluid storage container 14, an infusion pump 15, and a heater 16. The catheter 7 is sleeved on the outside of the puncture needle 1. The infusion pipe 8 and the drainage pipe 9 are symmetrically fixed on the inner wall of the catheter 7. An infusion hole 10 is opened near one end of the catheter 7, and a drainage hole 11 is opened on the other side of the catheter 7, which is staggered with the infusion hole 10. The sealing component 3 is provided at the positions of the puncture needle 1 corresponding to the positions of the infusion hole 10 and the drainage hole 11.

[0020] The sealing assembly 3 includes a first spherical airbag 4, a second spherical airbag 5, and an inflation / deflation pipe 6. The first spherical airbag 4 is fixed at the position corresponding to the infusion hole 10 of the puncture needle 1, and the second spherical airbag 5 is fixed at the position corresponding to the drainage hole 11 of the puncture needle 1. Both the first spherical airbag 4 and the second spherical airbag 5 are connected to an inflation / deflation pipe 6 for external connection on one side. An infusion tube 13 is connected to the infusion pipe 8, and one end of the infusion tube 13 is connected to an infusion fluid storage container 14. An infusion pump 15 is installed on the infusion tube 13 near the infusion fluid storage container 14.

[0021] Both the injection pipe 8 and the drainage pipe 9 are made of flexible materials, which gives them good flexibility.

[0022] Both the injection pipe 8 and the drainage pipe 9 are provided with through holes 12 for connection, so as to facilitate connection.

[0023] A heater 16 for heating the infusion fluid is fitted onto the infusion tube 13 to facilitate heating of the infusion fluid inside the infusion tube 13.

[0024] A flow meter is also installed on the infusion tube 13 to facilitate the display of the infusion flow rate.

[0025] The injection hole 10 and the drainage hole 11 are staggered for easy matching and use.

[0026] Working principle: When using this invention, the puncture needle 1 is inserted through the skin, through the intercostal space, and through a purse-string hole sewn on the ascending aorta under endoscopy. During perfusion, the perfusion fluid storage tank 14 operates to transport the perfusion fluid in the storage tank 14 to the perfusion pipe 8 via the infusion tube 13. The perfusion fluid is then discharged through the through hole 12 and the perfusion hole 10 on the perfusion pipe 8. During perfusion, the second spherical air bladder 5 inside the drainage pipe 9 is inflated through the inflation and deflation pipe 6. The inflated second spherical air bladder 5 compresses the drainage pipe 9, thus sealing the drainage hole 11. When it is necessary to seal the perfusion hole 10, only the first spherical air bladder 4 needs to be inflated. This prevents backflow from the perfusion hole 10 and the drainage hole 11 when not in use, which is beneficial for use.

[0027] Beneficial effects: This utility model has a novel structure and ingenious design, which makes it easy to seal the injection hole 10 and the drain hole 11, preventing backflow when the injection hole 10 and the drain hole 11 are not in use, which is beneficial to use.

[0028] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A percutaneous minimally invasive cardiac perfusion device, comprising a puncture needle (1) for puncture and a conical puncture tip (2) disposed at one end of the puncture needle (1), characterized in that: It also includes a sealing component (3). The outside of the puncture needle (1) is fitted with a catheter (7). The inner wall of the catheter (7) is symmetrically fixed with an infusion pipe (8) and a drainage pipe (9). An infusion hole (10) is opened near one end of the catheter (7). A drainage hole (11) is opened on the other side of the catheter (7) in an alternating manner with the infusion hole (10). The puncture needle (1) is provided with a sealing component (3) at the positions corresponding to the infusion hole (10) and the drainage hole (11). The sealing assembly (3) includes a first spherical airbag (4), a second spherical airbag (5), and an inflation / deflation pipe (6). The first spherical airbag (4) is fixed at the position of the infusion hole (10) corresponding to the puncture needle (1), and the second spherical airbag (5) is fixed at the position of the drainage hole (11) corresponding to the puncture needle (1). Both the first spherical airbag (4) and the second spherical airbag (5) are connected to an inflation / deflation pipe (6) connected to the outside. An infusion tube (13) is connected to the infusion pipe (8), and one end of the infusion tube (13) is connected to an infusion fluid storage container (14). An infusion pump (15) is installed near the infusion fluid storage container (14) of the infusion tube (13).

2. The percutaneous minimally invasive cardiac perfusion device according to claim 1, characterized in that: Both the injection pipe (8) and the drainage pipe (9) are made of flexible materials.

3. The percutaneous minimally invasive cardiac perfusion device according to claim 2, characterized in that: The injection pipe (8) is provided with a through hole (12) at the injection hole (10) and the drain pipe (9) is provided with a drain hole (11) at the drain hole (11) for connection.

4. The percutaneous minimally invasive cardiac perfusion device according to claim 3, characterized in that: The infusion tube (13) is fitted with a heater (16) for heating the infusion fluid.

5. The percutaneous minimally invasive cardiac perfusion device according to claim 4, characterized in that: A flow meter is also installed on the infusion tube (13).

6. The percutaneous minimally invasive cardiac perfusion device according to claim 5, characterized in that: The injection hole (10) and the drainage hole (11) are staggered.

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