Blood and intervention material mixing and transporting device for cardiovascular mosaic therapy

Abstract

A blood and interventional material mixed transportation device for cardiovascular mosaic therapy comprises a vein blood transportation cavity and an interventional material pre-storage and transportation cavity. The soft support rod of the cannula soft head is inserted into the cannula body to form the cannula body which is used as an imbedding support of a vein blood transportation cavity; the intubation tube is a gradual change tube body, the intubation tube body is a thin-wall steel wire reinforced PVC vein intubation tube, and a round drainage opening and a side hole are formed in the top of the tip of the intubation tube body, so that vein blood drainage and transportation are facilitated; a pre-storage space of an intervention material is arranged in the intervention sheath tube end, the intervention material is pre-loaded in the pre-storage space, and the pre-loaded intervention material can be placed in the pre-storage space when the intervention sheath tube is used; the whole tail is divided into a drainage channel for extracorporeal circulation and an intervention sheath tube conveying channel through the Y-shaped design of the tail. The tail drainage channel end is used for being connected with an extracorporeal circulation pipeline, and the tail intervention sheath channel is provided with a sheath connector which is used for operation of intervention device guiding and follow-up intervention device transportation.

Description

Technical Field

[0001] The utility model relates to a blood and interventional material mixing and transporting device for cardiovascular mosaic therapy, belonging to the technical field of mosaic therapy instruments in cardiovascular surgery. Background Art

[0002] With the rapid development of cardiac surgery at home and abroad, disposable venous cannulas are widely used in cardiac surgery. So far, almost all congenital heart diseases, coronary heart diseases, and valvular disease cardiovascular surgeries can be treated through traditional extracorporeal circulation surgeries. Disposable venous cannulas are an essential part of extracorporeal circulation surgeries, applicable to surgical procedures with extracorporeal circulation, connecting the patient's venous system to the extracorporeal circulation pipeline, and have long been routinely used.

[0003] In recent years, with the development of surgical techniques and the upgrading of medical equipment and consumables, traditional median sternotomy cardiac surgery has been gradually miniaturized, laparoscopicized, and even interventionalized. Implantation therapy is a very important part of this process. The wider application of absorbable materials can reduce the long-term residue of foreign materials in the body. Currently, technologies such as the research on absorbable venous dilation stents can even reduce the number of secondary surgeries. Currently, many advanced hospitals can already perform cardiac surgery under extracorporeal circulation through a right axillary incision. The advantages are that the incision is concealed and beautiful, the trauma is small, and the recovery is fast. The disadvantages are that the learning curve is relatively long, the risk is relatively high, it is difficult to deal with left-sided deformities when entering the chest from the right side, and unilateral lung compression makes it impossible to perform surgery on some cardiovascular diseases with unstable respiratory and circulatory ratios through a lateral chest opening. Therefore, a median sternotomy is still used when dealing with surgeries for many complex congenital heart diseases. For example: 1. When dealing with complex deformities combined with patent ductus arteriosus, according to the different hemodynamic conditions of the child, the ductus arteriosus needs to be kept open by selecting an in-duct stent according to the situation or closed before and after other surgical procedures. Many patent ductus arteriosus can be blocked or stented through interventional methods, but in the case of complex deformities, staged surgery to close the ductus is usually not performed to reduce the number of anesthetics. If a stent is needed to keep the ductus arteriosus open, it is more difficult to implant surgically at one time. The ductus arteriosus is located in the left chest, between the aorta and the pulmonary artery. The main complications of surgically closing the ductus arteriosus are: 1. Massive intraoperative bleeding, 2. Injury to the recurrent laryngeal nerve, 3. False aneurysm, 4. Chylothorax. Handling the ductus arteriosus through a right-sided approach greatly increases the occurrence of at least these several risks due to the deep operation position and limited field of vision, and can cause serious consequences including intraoperative death. In small-weight children, the femoral vein is usually relatively thin and cannot accommodate relatively inexpensive domestic occluders. Imported devices are expensive. When combined with atrial septal defect, ventricular septal defect, or other complex deformities that cannot be treated by interventional methods, the presence of the ductus arteriosus becomes a major obstacle to correcting cardiac deformities through the right chest. 2. When dealing with complex deformities, surgeries such as the Glenn procedure and the Fontan procedure may be required. There are almost no reports of lateral thoracotomy. Currently, the venous dilation stents under research cannot be surgically dissected in one operation on the existing extracorporeal circulation pathway and require an additional incision, increasing the surgical trauma, operation time, and complications. A blood and interventional material hybrid transportation device for cardiovascular implantation therapy can solve the above problems simultaneously. Summary of the Utility Model

[0004] The purpose of the present utility model is to address the problems mentioned in the background technology, such as the single function of the existing extracorporeal circulation blood transportation pipeline, and the difficulties in operating and the easy occurrence of serious complications when dealing with left-sided vascular diseases during surgeries using a right axillary incision and other minimally invasive incisions. To solve these problems and achieve a safe and minimally invasive cardiac and great vessel implantation therapy plan, a new device that can simultaneously have the functions of extracorporeal circulation blood transportation and interventional material transportation is proposed. The interventional materials include occluders and stents.

[0005] 1. Technical solution of the utility model: A blood and interventional material mixing and transportation device for cardiovascular mosaic therapy. The intubation soft head soft support rod is inserted into the intubation tube body to fill the intubation tube body and is used as the placement guide for the venous blood transportation channel. The intubation is a tapered tube body, and the intubation tube body is a thin-walled, steel wire-reinforced PVC venous intubation. Its tip head is provided with a circular drainage port and side holes, which are beneficial to the drainage and transportation of venous blood. The inside of the interventional sheath tube end is provided with a pre-storage space for interventional materials, and the interventional materials can be pre-loaded at this position. During use, the pre-loaded interventional materials can be placed after exhausting. The interventional materials include occluders and stents. The tail Y-shaped design divides the tail into an extracorporeal circulation drainage channel end and an interventional sheath tube transportation channel end. The tail drainage port end is used to connect the extracorporeal circulation pipeline, and the tail interventional sheath tube end is equipped with a sheath tube interface for intubation guidance and subsequent interventional operations.

[0006] 2. The blood and interventional material mixing and transportation device for cardiovascular mosaic therapy described above, the sheath tube interface is connected to the interventional sheath tube by two methods: Luer connector and bonding.

[0007] 3. The blood and interventional material mixing and transportation device for cardiovascular mosaic therapy described above, the outer circumference of the intubation tube body has scale lines.

[0008] In summary, the device of the utility model can not only realize the dual functions of extracorporeal circulation blood transportation and interventional therapy material transportation at the same small incision, reduce trauma, facilitate operation and reduce the operation time, provide more choices for the formulation of the operation plan. More importantly, it greatly reduces the occurrence of 1. intraoperative massive hemorrhage, 2. recurrent laryngeal nerve injury, 3. false aneurysm, and 4. chylothorax in right thoracotomy and other minimally invasive methods in cardiovascular surgery, improves the safety of the operation, and kills multiple birds with one stone. Description of the drawings

[0009] When considered in conjunction with the drawings, through reference to the following detailed description, the present utility model can be more completely and better understood, and many accompanying advantages can be easily known. However, the drawings described here are used to provide a further understanding of the present utility model, constitute a part of the present utility model, and the schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. As shown in the figure:

[0010] Figure 1 is the structural schematic diagram of the present utility model;

[0011] Figure 2 is the structural sectional schematic diagram of the present utility model;

[0012] Figure 3 is the structural schematic diagram of the intubation soft head soft support rod of the present utility model;

[0013] Figure 4 One of the schematic diagrams of the luer connector connection structure of the sheath tube interface of the present utility model;

[0014] Figure 5 One of the schematic diagrams of the bonding connection structure of the sheath tube interface of the present utility model;

[0015] Figure 6 The internal intervention material at the end of the intervention sheath tube of the present utility model, and the intervention material includes a schematic diagram of pre-storing a plugging device and a stent;

[0016] The present utility model will be further described below in conjunction with the drawings and embodiments. Specific embodiments

[0017] Obviously, many modifications and variations made by those skilled in the art based on the purpose of the present utility model fall within the protection scope of the present utility model.

[0018] Obviously, those skilled in the art of this technology can understand that unless specifically stated, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description, "a plurality" means two or more unless otherwise specifically defined.

[0019] Unless otherwise clearly specified and limited, the terms such as "installation", "connection", "connection", "fixation" and the like 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0020] Those skilled in the art of this technology can understand that unless otherwise defined, all terms used herein, including technical terms and scientific terms, have the same meaning as the general understanding of those of ordinary skill in the relevant art.

[0021] For the convenience of understanding the embodiments, further explanatory descriptions will be given below, and each embodiment does not constitute a limitation on the embodiments of the utility model.

[0022] Embodiment 1: As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6As shown in the figure, a device for mixed transportation of blood and interventional materials for cardiovascular mosaic therapy. The interventional materials include occluders and stents. The soft-tipped flexible support rod 1 of the cannula is inserted into the cannula body 2 to form the cannula body, which is used as the placement guide and support for the venous blood transportation channel. The cannula body 2 is a tapered tube, with the left end being the cannula tip 3 and the circular drainage hole 4. The wall thickness of the cannula body is strengthened by a steel wire 5. On one side of the soft-tipped flexible support rod 1 of the cannula, there is a circular small handle 6, and on the other side is the handle 7 of the soft-tipped flexible support rod of the cannula. The right end of the cannula body 2 is connected to a one-way joint 8 and is simultaneously connected to the interventional sheath channel 9 to form a Y-shaped design with an angle of 30 degrees - 60 degrees. The sheath interface 10 is connected to the interventional sheath 9 through a Luer connector, or the sheath interface 10 is adhesively connected to the interventional sheath channel 9. The outer circumference of the cannula body has scale lines. Inside the interventional sheath channel 9, there is a pre-storage 11 for interventional materials.

[0023] Example 2: As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown in the figure, a device for mixed transportation of blood and interventional materials for cardiovascular mosaic therapy. It consists of the soft-tipped flexible support rod 1 of the cannula, the cannula body 2, the cannula tip 3, the circular drainage hole 4, the steel wire 5, the interventional sheath channel 9, the sheath interface 10, the one-way joint 8, and the pre-storage 11 for interventional materials. The inner diameter of the cannula body 2 gradually increases, forming a blood flow pressure difference beneficial for clinical drainage. The outer circumference of the cannula body has scale lines, which facilitate clinicians to clearly know the insertion depth at any time. The interventional sheath 9 is connected to the sheath interface 10, and a smooth guide wire can pass through. The sheath interface 10 is connected in two ways: by adhesion and by a Luer connector. The right end of the cannula body 2 is connected to a one-way joint 8 and is simultaneously connected to the interventional sheath 9 to form a Y-shaped design with an angle of 30 degrees - 60 degrees, which facilitates the smooth entry of the guide wire through the interventional sheath 9 and the placement of the occluding umbrella. At the same time, the sheath interface 10 is equipped with a one-way valve device, which can be connected to a syringe for exhaust, connected to a pressure measuring device, and used to introduce interventional devices such as interventional guide wires, sheaths, and conveyors to place interventional materials. The inner cavity of the cannula can insert the soft-tipped flexible support rod 1 of the cannula to assist in the insertion and accurate positioning of the cannula.

[0024] A device for mixed transportation of blood and interventional materials for cardiovascular mosaic therapy is applicable to surgical operations with an extracorporeal blood path, connecting the patient's venous system to the extracorporeal circulation pipeline, and draining and transporting the venous blood in the body through a cardiopulmonary machine for oxygenation.

[0025] Insert the cannula, observe the scale line to judge the insertion depth. After insertion and fixation, remove the soft head and soft body support rod 1 of the cannula and connect it to the extracorporeal circulation pipeline. The sheath tube interface 10 with a one-way valve device can be connected to a syringe for exhaust, connected to a pressure measuring device, and used to introduce and transport interventional wires, sheath tubes, conveyors and other interventional devices, and transport the pre-loaded interventional materials to the corresponding positions.

[0026] As described above, the embodiments of the present invention have been described in detail. However, as long as it does not substantially deviate from the inventive points and effects of the present invention, there can be many variations, which are obvious to those skilled in the art. Therefore, such variations are also entirely included in the protection scope of the present invention.

Claims

1. A blood and intervention material mixed transport device for cardiovascular inlay treatment, characterized in that: The soft support rod of the soft head of the cannula is inserted into the cannula body to fill the cannula body and is used as a guide for insertion into the venous blood transport cavity. The cannula is a gradient tube body, and the cannula body is a thin-walled, steel wire-reinforced PVC venous cannula. The tip of the cannula is provided with a circular drainage port and a side hole to facilitate venous blood drainage and transportation; a pre-storage space for interventional materials is provided inside the interventional sheath end, and the interventional materials can be pre-loaded at this position. When in use, the pre-loaded interventional materials can be inserted after exhausting the air, and the interventional materials include occluders and stents; the Y-shaped design of the tail divides the tail into a drainage channel end for extracorporeal circulation and an interventional sheath delivery channel end, the tail drainage port end is used to connect the extracorporeal circulation pipeline, and the tail interventional sheath end is equipped with a sheath interface for cannula guidance and subsequent interventional operations.

2. A blood and intervention material mixed transport device for cardiovascular inlay treatment according to claim 1, characterized in that: The sheath interface is connected to the interventional sheath by two methods: Luer connector and bonding.

3. The blood and intervention material mixed transport device for cardiovascular inlay treatment according to claim 1, characterized in that: The outer circumference of the cannula body is provided with scale lines.

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