Artery shunt device for open cardiac surgery

Abstract

The utility model belongs to the technical field of surgical operations, and particularly relates to an artery shunt device for an open heart operation, which comprises a main tube, a butterfly fixator, a hose, a three-way regulating valve, a tube joint, a switch valve, a bent tube, a tube joint and a steel needle. According to the artery shunt device for the open heart surgery, in the surgery, the Y-shaped catheter with the puncture needle punctures into a blood vessel, the entering depth is the part at the far end of the butterfly-shaped fixator, a main pipe of the Y-shaped catheter is fixed to the blood vessel through the butterfly-shaped fixator by means of a purse-string suture which is reserved in the blood vessel in advance, a steel needle is pulled out after fixation, and gas in the catheter can be exhausted through the exhaust valve; the device can prevent blood from flowing out of a main pipe, the device forms a complete shunting channel through detachable connection of all the components, the functions of fixing, exhausting and shunting are achieved at the same time, and profound hypothermia circulation arrest is avoided in an open operation for a patient with normal aortic arch lesion of an ascending aorta and a B-type interlayer with an opening very close to a left subclavian artery. And even extracorporeal circulation is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical operations, in particular to an arterial shunt device for open heart operations. Background Art

[0002] Coronary atherosclerotic heart disease is the main killer endangering human health. The incidence of coronary heart disease in my country is high and increasing year by year. Nearly tens of thousands of patients need coronary artery bypass grafting every year, of which off-pump coronary artery bypass grafting accounts for more than 40%.

[0003] Generally, a section of the great saphenous vein is taken, reversed, and one end is anastomosed to the ascending aorta, and the other end is anastomosed to the distal end of the coronary artery stenosis, so that the blood flow of the ascending aorta can reach the ischemic myocardium through the vascular bridge. The number of great saphenous vein grafts depends on the number of occluded branches of the main coronary arteries. The advantages of using a great saphenous vein graft are large caliber, sufficient length, tough wall, and easy suture. However, the long-term occlusion rate after surgery is significantly higher than that of the internal mammary artery vascular graft. When the great saphenous vein graft is insufficient, the right gastroepiploic artery and radial artery vascular grafts can also be used.

[0004] Aortocoronary bypass surgery is used for:

[0005] 1. Patients with angina pectoris, especially unstable angina pectoris, who are not responsive to drug treatment.

[0006] 2. Coronary angiography confirmed localized stenosis of the main coronary arteries, with the diameter stenosis exceeding 50%, and the distal end of the stenosis was patent with a diameter >1.5mm.

[0007] 3. Patients with failure or restenosis of percutaneous transluminal coronary angioplasty; patients with significant arterial stenosis after thrombolysis for acute myocardial infarction. In the above interventional treatment cases, if plaque detachment blocks the distal lumen, the electrocardiogram shows persistent ischemic waveforms or angina pectoris worsens, emergency surgery should be performed.

[0008] 4. Patients with ischemic cardiomyopathy who still have large areas of viable myocardium. These patients have very poor cardiac function and should be treated with caution.

[0009] 5. The indication for secondary surgery is when more than one vascular graft is blocked, or atherosclerotic lesions extend to other blood vessels, and the above indications 1 and 2 are met.

[0010] In the prior art, the end of the arterial shunt plug is not hard enough, which makes it difficult for the surgeon to insert the plug after cutting open the coronary blood vessels.

[0011] Therefore, we propose an arterial shunt device for open heart surgery to solve the above problems. Utility Model Content

[0012] The purpose of the utility model is to provide an arterial shunt device for open heart surgery to solve the problems raised in the above background technology.

[0013] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an arterial shunt device for open heart surgery, comprising a Y-shaped catheter, an exhaust valve installed inside the Y-shaped catheter, a steel needle installed on the front of the exhaust valve, a curved pipe installed on the side of the Y-shaped catheter, a soft tube installed on the side of the curved pipe, a switch valve installed inside the curved pipe, a butterfly-shaped fixture installed on the outer surface of the Y-shaped catheter, a three-way regulating valve installed inside the soft tube, and a pipe joint installed on the side door of the soft tube. During the operation, the Y-shaped catheter with a puncture needle punctures into the blood vessel, and the penetration depth is the distal end of the butterfly-shaped fixture. The "purse-string" suture pre-retained in the blood vessel fixes the main tube of the Y-shaped catheter to the blood vessel through the butterfly-shaped fixture. After fixation, the steel needle is removed, and the gas in the catheter can be discharged through the exhaust valve, while blocking blood from flowing out of the main tube.

[0014] Preferably, the Y-shaped catheter with the puncture needle is detachably connected to the hose, and the hose is detachably connected to the three-way regulating valve, so that the device can be easily disassembled and assembled, thereby making the device easy to carry and use.

[0015] Preferably, the hose is a hollow structure, with pipe joints at both ends formed integrally with the hose, and can be detachably connected to the side pipe of the Y-shaped catheter and the three-way regulating valve respectively.

[0016] Preferably, the Y-shaped catheter is a hollow structure, divided into a main tube and a side tube, a butterfly holder is provided on the main tube side about 1 cm away from the catheter tip, an exhaust valve is provided 1 cm away from the tail end of the main tube, and a pipe joint is provided at the tail end of the main tube and is integrally formed with the Y-shaped catheter.

[0017] Preferably, the steel needle is a steel needle tube, one end of which is a conical structure, and the steel needle is set to be a hollow structure, and the other end is a spiral cap and is integrally formed with the steel needle.

[0018] Preferably, a switch valve is provided in the middle of the middle part of the side tube of the Y-shaped catheter, and a pipe joint is provided at the end of the side tube, which is integrally formed with the Y-shaped catheter.

[0019] Preferably, the device forms a complete shunt channel by disassembling and connecting the components, and simultaneously realizes the functions of fixation, exhaust, and shunt, thereby avoiding deep hypothermic circulatory arrest during open surgery in patients with normal ascending aorta, aortic arch lesions, type B dissection but with an opening very close to the left subclavian artery, and even eliminating the need for extracorporeal circulation.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. The arterial shunt device for open heart surgery, during the operation, a Y-shaped catheter with a puncture needle punctures into the blood vessel, and the penetration depth is the distal part of the butterfly fixator. The "purse string" suture pre-deposited in the blood vessel fixes the main tube of the Y-shaped catheter to the blood vessel through the butterfly fixator. After fixation, the steel needle is removed, and the gas in the catheter can be discharged through the exhaust valve, while blocking the blood from flowing out of the main tube.

[0022] 2. The arterial shunt device for open heart surgery forms a complete shunt channel by disassembling and connecting the components, and simultaneously realizes the functions of fixation, exhaust, and shunt, thereby avoiding deep hypothermic circulatory arrest during open surgery for patients with aortic arch lesions and type B dissection with normal ascending aorta but the opening is very close to the left subclavian artery, and even eliminating the need for extracorporeal circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the overall structure diagram of the utility model;

[0024] Figure 2 This is the top structural diagram of the utility model;

[0025] Figure 3 This is a structural diagram of a Y-shaped catheter of the utility model;

[0026] Figure 4 This is a structural diagram of a steel needle of the present utility model.

[0027] In the figure: 1. Y-shaped catheter; 2. butterfly holder; 3. hose; 4. three-way regulating valve; 5. pipe joint; 6. switch valve; 7. elbow; 8. pipe joint; 9. steel needle. DETAILED DESCRIPTION

[0028] 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.

[0029] See also Figure 1-Figure 4The utility model provides a technical solution: an arterial shunt device for open heart surgery, comprising a Y-shaped catheter 1, an exhaust valve 8 is installed inside the Y-shaped catheter 1, a steel needle 9 is installed on the front of the exhaust valve 8, a curved pipe 7 is installed on the side of the Y-shaped catheter 1, a hose 3 is installed on the side of the curved pipe 7, a switch valve 6 is installed inside the curved pipe 7, a butterfly fixer 2 is installed on the outer surface of the Y-shaped catheter 1, a three-way regulating valve 4 is installed inside the hose 3, and a pipe joint 5 is installed on the side door of the hose 3. During the operation, the Y-shaped catheter 1 with a puncture needle punctures into the blood vessel, and the entry depth is the distal end of the butterfly fixer 2. The "purse string" suture pre-retained in the blood vessel fixes the main tube of the Y-shaped catheter 1 to the blood vessel through the butterfly fixer 2. After fixation, the steel needle 9 is removed, and the gas in the catheter can be discharged through the exhaust valve 8, and at the same time, blood can be blocked from flowing out of the main tube.

[0030] The Y-shaped catheter 1 with the puncture needle is detachably connected to the hose 3, and the hose 3 is detachably connected to the three-way regulating valve 4, so that the device can be easily disassembled and assembled, thereby making the device easy to carry and use.

[0031] The hose 3 is a hollow structure, and pipe joints 5 are provided at both ends and are integrally formed with the hose 3 , and can be detachably connected to the side pipe of the Y-shaped catheter 1 and the three-way regulating valve 4 respectively.

[0032] The Y-shaped catheter 1 is a hollow structure, which is divided into a main tube and a side tube. A butterfly-shaped holder 2 is provided on the main tube side about 1 cm away from the tip of the catheter, and an exhaust valve 8 is provided 1 cm away from the tail end of the main tube. A pipe joint 5 is provided at the tail end of the main tube and is integrally formed with the Y-shaped catheter 1.

[0033] The steel needle 9 is a rigid needle tube, one end of which is a conical structure, and the steel needle 9 is set to be a hollow structure, and the other end is a spiral cap and is integrally formed with the steel needle 9.

[0034] A switch valve 6 is provided in the middle of the side pipe of the Y-shaped conduit 1, and a pipe joint is provided at the end of the side pipe, which is integrally formed with the Y-shaped conduit 1;

[0035] The device forms a complete shunt channel by disassembling and connecting the components, and simultaneously realizes the functions of fixation, exhaust, and shunt, thereby avoiding deep hypothermic circulatory arrest during open surgery and even eliminating the need for extracorporeal circulation in patients with aortic arch lesions and type B dissection with normal ascending aorta but opening very close to the left subclavian artery.

[0036] Working principle: During the operation, the Y-shaped catheter 1 with a puncture needle punctures into the blood vessel, and the penetration depth is the distal part of the butterfly fixator 2. The "purse-string" suture previously left in the blood vessel fixes the main tube of the Y-shaped catheter 1 to the blood vessel through the butterfly fixator 2. After fixation, the steel needle 9 is removed, and the gas in the catheter can be discharged through the exhaust valve 8, while blocking the blood from flowing out of the main tube.

[0037] 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 statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. An arterial shunt device for open heart surgery, comprising a Y-shaped catheter (1), characterized in that: An exhaust valve (8) is installed inside the Y-shaped catheter (1), a steel needle (9) is installed on the front of the exhaust valve (8), a curved pipe (7) is installed on the side of the Y-shaped catheter (1), a hose (3) is installed on the side of the curved pipe (7), a switch valve (6) is installed inside the curved pipe (7), a butterfly holder (2) is installed on the outer surface of the Y-shaped catheter (1), a three-way regulating valve (4) is installed inside the hose (3), and a pipe joint (5) is installed on the side door of the hose (3).

2. An arterial shunt device for open heart surgery according to claim 1, characterized in that: The Y-shaped conduit (1) is detachably connected to the hose (3), and the hose (3) is detachably connected to the three-way regulating valve (4).

3. An arterial shunt device for open heart surgery according to claim 1, characterized in that: The hose (3) is a hollow structure, with pipe joints (5) provided at both ends and integrally formed with the hose (3), and can be detachably connected to the side pipe of the Y-shaped catheter (1) and the three-way regulating valve (4), respectively.

4. The arterial bypass device for open heart surgery according to claim 1, characterized in that: The Y-shaped catheter (1) is a hollow structure, and is divided into a main tube and a side tube. A butterfly-shaped fixer (2) is provided on the main tube side about 1 cm away from the tip of the catheter, and an exhaust valve (8) is provided 1 cm away from the tail end of the main tube. A pipe joint (5) is provided at the tail end of the main tube and is integrally formed with the Y-shaped catheter (1).

5. The arterial bypass device for open heart surgery according to claim 1, characterized in that: The steel needle (9) is a steel needle tube, one end of which is a conical structure, and the steel needle (9) is arranged as a hollow structure, and the other end is a spiral cap which is integrally formed with the steel needle (9).

6. An arterial shunt device for open heart surgery according to claim 1, characterized in that: A switch valve (6) is provided in the middle of the side tube of the Y-shaped catheter (1), and a pipe joint is provided at the end of the side tube, which is integrally formed with the Y-shaped catheter (1).

7. An arterial shunt device for open heart surgery according to claim 1, characterized in that: The device forms a complete flow diversion channel by disassembling and connecting the components.

Images