Heart filling device

Abstract

The invention provides a heart filling device, which relates to the technical field of medical instruments and comprises two filling catheters, a direction adjusting assembly, a dynamic control assembly and a positioning assembly, the two filling guide pipes are movably connected through the direction adjusting assembly, the positioning assembly is used for locking and positioning the direction adjusting assembly, and the dynamic control assembly is used for controlling the positioning assembly to achieve or relieve positioning. According to the heart filling device, the direction of the filling catheter can be flexibly adjusted during filling, a complex three-dimensional structure in the heart can be conveniently dealt with, filling of specific corners of different cavities of the heart is achieved, flexibility is better, and the filling effect is better.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a heart filling device. Background Art

[0002] Heart disease is one of the leading causes of death worldwide. With the aging of the population and changes in lifestyle, the incidence of heart disease is on the rise. For some serious heart diseases, such as heart failure, traditional treatments mainly include drug therapy and heart transplantation. With the gradual development of science and technology, myocardial filling technology has been gradually applied to the treatment of heart disease. Myocardial filling technology is a type of medical technology aimed at improving myocardial function and repairing myocardial damage. Common myocardial filling technologies include hydrogel filling technology.

[0003] There are also some heart filling devices for treating heart diseases in the prior art, but in these technologies, the heart filling devices can often only be adjusted in limited directions when filling, such as only being able to move to a certain extent in the axial direction or adjusting the angle in a single plane. This limitation makes it difficult for the myocardial filling device to flexibly adjust the direction of the filling catheter when facing the complex three-dimensional structure inside the heart, resulting in the inability to accurately deliver the filling material to the target area. In particular, when it is necessary to fill specific corners of different chambers of the heart, the single-direction adjustment cannot meet the needs, which may affect the treatment effect.

[0004] Therefore, there is an urgent need to propose a new heart filling device to at least solve the above problems. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the present invention provides a heart filling device, which at least solves the problem of poor flexibility of the prior art heart filling device when adjusting the direction of the filling catheter 1.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A heart filling device, characterized in that the device comprises:

[0010] Two filling conduits, a direction adjustment component, a dynamic control component, and a positioning component; the two filling conduits are movably connected via the direction adjustment component, the positioning component is used to lock and position the direction adjustment component, and the dynamic control component is used to control the positioning component to realize or release positioning;

[0011] The direction adjustment component specifically includes: a fixing rod, a spherical block, and a spherical sleeve, and the spherical block and the spherical sleeve are respectively fixed on the opposite ends of the two filling tubes through the fixing rod, and the spherical block and the spherical sleeve cooperate to form a ball joint type movable connection structure.

[0012] Preferably, the numbers of the fixing rods, spherical blocks, and spherical sleeves are 2n, n, and n, respectively; wherein n is a positive integer greater than or equal to 1.

[0013] In one embodiment, the positioning assembly includes: a conical top block and a plurality of positioning units, each of the positioning units includes: an ejection block, a protruding rod, a limit spring, and a limit block; wherein: one end of the ejection block is movably connected to one end of the conical top block, and the other end of the ejection block is connected to one end of the protruding rod, and the other end of the protruding rod passes through a corresponding through hole on the spherical block and is connected to the inner side surface of the limit block on the outer surface of the main spherical block, the outer side surface of the limit block is located in the inner cavity of the main spherical sleeve, and the limit spring is sleeved on the protruding rod and located between the limit block and the ejection block.

[0014] Preferably, the limiting block is made of silicone rubber.

[0015] In one embodiment, the dynamic control component includes: a push rod, a first inclined block, a first return spring, a second inclined block, a second spring, an extension rod, and a pressing block; wherein: the pressing block is protrudingly arranged on the filling conduit and is located in a through hole opened in a perpendicular axial direction of the filling conduit, the lower end of the pressing block contacts one end of the extension rod, the other end of the extension rod extends downward into a mounting groove opened inside the filling conduit and is connected to the second inclined block, the second spring is sleeved on the other end of the extension rod and is located between the upper inner wall of the mounting groove and the upper surface of the second inclined block; after one end of the push rod extends into the mounting groove along the axial direction of the filling conduit, it contacts the right end face of the first inclined block, and the left end face of the first inclined block rests on the left inner wall of the mounting groove through a plurality of first return springs; the inclined surface of the first inclined block is slidably connected to the inclined surface of the second inclined block; the other end of the push rod extends into the fixing rod on the axis of the filling conduit along the axial direction of the filling conduit and is connected to the conical top block in the positioning component.

[0016] In another embodiment, the device further comprises: a protective sleeve, wherein the protective sleeve is located at the connection between the two filling tubes.

[0017] Preferably, the protective sleeve is fixed on the surface of the filling conduit by means of a positioning clamp ring connection.

[0018] In a preferred embodiment, n=5. When n=5, one end of five fixing rods is fixed on a filling conduit, and five spherical blocks are respectively installed on the other ends of the five fixing rods, while one end of the other five fixing rods is fixed on another filling conduit, and the other ends of the five fixing rods are connected with spherical sleeves; the five spherical blocks and the five spherical sleeves are arranged opposite to each other to form a ball joint-like connection structure.

[0019] Furthermore, two fixed rods, two spherical blocks, and two spherical sleeves are located on the axes of the two filling catheters as a main ball joint connection structure, and the other four groups of fixed rods, spherical blocks, and spherical sleeves are evenly distributed around the axes of the two filling catheters as auxiliary ball joint connection structures.

[0020] Furthermore, the fixing rod in the auxiliary ball joint connection structure can be replaced by a return spring rod.

[0021] In another embodiment, n=1, that is, the direction adjustment assembly 2 includes 2 fixing rods, 1 spherical block, and 1 spherical sleeve.

[0022] In one embodiment, the protective sleeve is a flexible stretchable protective sleeve.

[0023] Preferably, the material of the flexible and stretchable protective sleeve is TPE.

[0024] In one embodiment, the device also includes: a workbench, a display control screen installed on the workbench, and a camera; wherein, a filling conduit away from the filling entry direction is installed on a guide tube connected to the display control screen, and the display control screen is electrically connected to the camera installed on the filling conduit.

[0025] (III) Beneficial effects

[0026] The present invention provides a heart filling device. Compared with the prior art, it has the following beneficial effects:

[0027] The heart filling device proposed in the present invention can flexibly adjust the direction of the filling catheter during filling, so as to cope with the complex three-dimensional structure inside the heart and achieve filling of specific corners of different chambers of the heart, with better flexibility and better filling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a schematic diagram of the overall structure of the heart filling device in an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the overall internal structure of a heart filling device according to an embodiment of the present invention;

[0031] Figure 3 It is a structural schematic diagram of a direction adjustment component in an embodiment of the present invention;

[0032] Figure 4 is a schematic structural diagram of a direction adjustment component in another viewing angle in an embodiment of the present invention;

[0033] Figure 5 is a partial schematic diagram of a dynamic control component in an embodiment of the present invention;

[0034] Figure 6 Schematic diagram of the dynamic control component structure from another perspective in an embodiment of the present invention.

[0035] Figure 7 It is a structural schematic diagram of a positioning component in an embodiment of the present invention;

[0036] Figure 8 This is a schematic diagram of the structure of a positioning unit in an embodiment of the present invention;

[0037] Fig. 9 FIG. 1 is a schematic diagram of the overall structure of a heart filling device in another embodiment of the present invention.

[0038] In the figure:

[0039] 1- Fill the catheter;

[0040] 2-direction adjustment assembly; 21-fixing rod; 22-spherical block; 23-spherical sleeve; 24-circular block;

[0041] 3-dynamic control assembly; 31-push rod; 32-first inclined block; 33-first return spring; 34-second inclined block; 35-second spring; 36-extension rod; 37-pressing block;

[0042] 4-positioning assembly; 41-conical top block; 42-positioning unit; 421-top block; 422-protruding rod; 423-limiting spring; 424 limiting block;

[0043] 5- Workbench;

[0044] 6- Display control screen;

[0045] 7- Protective cover. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] The embodiment of the present application provides a heart filling device, which solves the problem of poor flexibility of the existing heart filling device when adjusting the direction of the filling catheter 1, and achieves the purpose of the heart filling device being well adapted to the complex anatomical structure inside the heart and performing accurate and effective filling.

[0048] Heart disease is one of the leading causes of death worldwide. With the aging of the population and changes in lifestyle, the incidence of heart disease is on the rise. For some serious heart diseases, such as heart failure, traditional treatments include drug therapy and heart transplantation. With the gradual development of science and technology, myocardial filling technology has been gradually applied to the treatment of heart disease. Myocardial filling technology is a type of medical technology aimed at improving myocardial function and repairing myocardial damage. Common ones include hydrogel filling technology. Hydrogel is a polymer material with a three-dimensional network structure. It has a high water content, a soft texture and a certain elasticity, which is similar to the physical properties of human tissue. In myocardial filling, hydrogel can be injected into the damaged myocardial area by injection. On the one hand, hydrogel can play a role of mechanical support to prevent the damaged myocardium from further expansion and deformation; on the other hand, it can serve as a scaffold for cell growth, attracting endogenous stem cells to migrate to the area and proliferate and differentiate, promoting the repair and filling of myocardial tissue.

[0049] In some existing myocardial filling systems, if it is necessary to inject other locations in the heart after the injection module completes the first injection, it is difficult for the control mechanism to quickly recover the pressing tube. This is because the design of the traditional control mechanism is not reasonable enough, and it usually takes multiple rotations to recover the pressing tube, which increases the operation time. It may also affect the normal use of the filling material (such as gel), because the gel may have solidified during the recovery process of the pressing tube, and the pressing tube lacks an effective stabilization mechanism during the forward and backward process. Some systems cannot ensure the stable axial movement of the pressing tube, and are prone to rotation or eccentricity, which not only affects the accuracy of the filling, but also may cause the pressing tube to fail to accurately reach the target position for injection, and may even cause damage to the heart tissue. For example, patent CN202111630646.4 discloses a heart failure treatment system, which needs to be injected at other locations in the heart after the injection module completes the first injection, but the control mechanism cannot make the injection module quickly recovered, which increases the operation time. At the same time, due to the short solidification time of the injected gel, it is easy to have the gel not injected to the target position but solidified. Patent CN202021974980.2 discloses a puncture device, which realizes axial advancement of the inner needle tube by operating a driving member, which is not conducive to a good contact with the myocardial tissue. If the operation is too fast, the impact force when the distal end of the inner needle tube contacts the myocardial tissue is large, which is easy to damage the tissue; and the driving member has no locking device. If the operator misoperates during the operation and accidentally touches the driving member, the patient's life will be in danger.

[0050] Summarizing the existing myocardial filling technology, it can be found that the myocardial filling system in the prior art often has a slow recovery speed of the pressing tube, the pressing tube cannot move forward and backward stably, the pressing tube has a large impact on the ventricular wall when it is against the target position, and if the operator makes a mistake during the operation, it will have a great impact on the patient. In addition, the existing heart filling device can often only be adjusted in a limited direction, such as only being able to move a certain degree in the axial direction or adjust the angle within a single plane. This limitation makes it difficult for the heart filling device to flexibly adjust the direction of the filling catheter 1 when facing the complex three-dimensional structure inside the heart, resulting in the inability to accurately deliver the filling material to the target area. In particular, when it is necessary to fill specific corners of different chambers of the heart, adjustment in a single direction cannot meet the needs and may affect the treatment effect.

[0051] The technical solution in the embodiments of the present application is to solve one or more of the above technical problems, and the overall idea is as follows:

[0052] By setting a direction adjustment component composed of a spherical block and a spherical sleeve to form a ball-jointed structure, the filling direction and angle can be flexibly changed; by setting a dynamic control component and a positioning component, the filling tube is locked and positioned after reaching a predetermined position, and the locking function is released when the filling is completed or the filling direction needs to be further adjusted. Not only can the angle and position during filling be flexibly adjusted, but it can also be locked and fixed in time, while meeting the requirements of the flexibility of direction adjustment and filling stability of the heart filling device; in addition, by setting a flexible and stretchable protective sleeve at the connection of the filling tube, a physical barrier is formed to protect the filling catheter, improve the sanitary environment, and avoid damage to the filling tube; and by equipping the heart filling device with a workbench, a display control screen, and a camera, the filling process is visualized to improve the filling effect. In short, the heart filling device proposed by the present invention can flexibly adjust the direction of the filling catheter during filling, which is convenient for coping with the complex three-dimensional structure inside the heart, and realizes the filling of specific corners of different chambers of the heart, with better flexibility and better filling effect.

[0053] In order to better understand the above technical solution, Figure 1-9 And specific implementation methods are used to describe the above technical solutions in detail.

[0054] See also Figure 1-4 The present application discloses a cardiac filling device, which comprises: two filling catheters 1, a direction adjustment component 2, a dynamic control component 3, and a positioning component 4. The two filling catheters 1 are movably connected through the direction adjustment component 2, the positioning component 4 is used to lock and position the direction adjustment component 2, and the dynamic control component 3 is used to control the positioning component 4 to realize or release the positioning.

[0055] The direction adjustment component 2 is used to flexibly adjust the direction of the filling catheter 1 so that the filling tube can adapt to the complex and changeable anatomical structure inside the heart. The direction adjustment component 2 specifically includes: a fixed rod 21, a spherical block 22, and a spherical sleeve 23. The spherical block 22 and the spherical sleeve 23 are respectively fixed on the opposite ends of the two filling catheters 1 through the fixed rod 21, and the spherical block 22 and the spherical sleeve 23 cooperate to form a ball joint type movable connection structure. The direction of the filling catheter 1 can be flexibly adjusted through the activity of the ball joint type movable connection structure. In the specific implementation, the specific data of the fixed rod 21, the spherical block 22, and the spherical sleeve 23 included in the direction adjustment component 2 are not limited. Generally, there are 2n fixed rods 21, n spherical blocks 22, and n spherical sleeves 23. Wherein, n is a positive integer greater than or equal to 1.

[0056] In one embodiment, as shown in the figure, the direction adjustment component 2 includes 10 fixed rods 21, 5 spherical blocks 22, and 5 spherical sleeves 23. Among them, one end of the 5 fixed rods 21 is fixed on a filling tube 1, and the 5 spherical blocks 22 are respectively installed on the other end of the above-mentioned 5 fixed rods 21, and one end of the other 5 fixed rods 21 is fixed on another filling tube 1, and the other end of the 5 fixed rods 21 is connected to the spherical sleeve 23. Specifically, a circular block 24 with a plurality of through holes is provided at each of the opposite ends of the two filling tubes 1. The circular block 24 is stuck on the filling tube 1 and is used to fix the fixed rod 21, and the filler and the like flow to the filling end through the through holes. Specifically, Figure 2 shown.

[0057] The five spherical blocks 22 and the five spherical sleeves 23 are arranged opposite to each other to form a ball joint connection structure. When the direction of the filling catheter 1 needs to be adjusted, the five spherical blocks 22 can move with multiple degrees of freedom in the corresponding five spherical sleeves 23, including rotation and tilting at a certain angle. This movement is similar to the flexible rotation of human joints, which enables the filling catheter 1 to adapt to the complex and changeable anatomical structure inside the heart. For example, when filling in different corners of different ventricles or atria of the heart, the direction of the filling catheter 1 can be adjusted through the relative movement of the spherical blocks 22 and the spherical sleeves 23 to ensure that the filling material can be delivered to the target position, avoiding the doctor's hand bending and fatigue during operation.

[0058] In order to ensure the coordination of the above-mentioned multiple ball joint connection structures when adjusting the direction, and the overall toughness of the entire direction adjustment assembly 2. Preferably, the two fixing rods 21, two spherical blocks 22, and two spherical sleeves 23 on the axes of the two filling tubes 1 are relatively larger in size and serve as the main ball joint connection structure. The other groups of ball joint connection structures are evenly distributed around the axes of the two filling tubes 1 with the axes as the symmetric center.

[0059] In another embodiment, in order to simplify the configuration, the direction adjustment assembly 2 includes two fixing rods 21, a spherical block 22, a spherical sleeve 23, and a plurality of return spring rods. The plurality of return spring rods are directly replaced and evenly distributed around the main ball joint connection structure.

[0060] In another embodiment, the direction adjustment component 2 includes a fixed rod 21, a spherical block 22, a spherical sleeve 23, a plurality of reset spring rods matched with the fixed rod 21, and auxiliary ball blocks and auxiliary ball sleeves matched with the plurality of reset spring rods. Among them, a fixed rod 21, a spherical block 22, and a spherical sleeve 23 form a group of main ball joint type active connection structures (the specific installation and connection methods refer to the above embodiments, which will not be repeated here), and are installed on the axis of the two filling catheters 1, and a plurality of reset spring rods are evenly and symmetrically distributed around the ball joint type active connection structure, and the top end of each corresponding position of the reset spring rod is connected with an auxiliary ball block or an auxiliary ball sleeve, which is connected and matched with the auxiliary ball sleeve or auxiliary ball block connected to the top end of the reset spring rod at the opposite position to form a new auxiliary ball joint type active connection structure. When the filling conduit 1 changes position during operation, the reset spring rod will be acted upon by an external force. Since the reset spring rod cooperates with the fixed rod 21, its position change will drive the relative movement of the auxiliary ball block in the auxiliary ball sleeve, and the spring on the reset spring rod will undergo elastic deformation according to the force. For example, when the filling conduit 1 is pushed or pulled, the reset spring rod will expand and contract accordingly, and the relative position between the auxiliary ball block and the auxiliary ball sleeve will also change. The movement of the auxiliary ball block in the auxiliary ball sleeve is similar to the movement of the spherical block 22 and the spherical sleeve 23, which can assist in adjusting the direction of the filling conduit 1 to a certain extent. At the same time, the spring force of the reset spring rod can be adapted to adjust the angle, and when reset is required, it will cause the entire system to tend to return to its initial state.

[0061] By providing a return spring rod, an auxiliary ball block and an auxiliary ball sleeve structure that cooperate with the fixed rod 21, the stability of the filling catheter 1 is enhanced. During the operation, even if it is subject to external interference such as patient body movement or instrument collision, the spring force of the return spring rod can timely buffer and adjust the position change of the filling catheter 1, reduce excessive deviation of the catheter, and keep it more stably near the target position.

[0062] The positioning assembly 4 is used to lock and position the direction adjustment assembly 2 after the filling angle of the filling conduit 1 is adjusted to prevent the filling conduit 1 from changing its angle at will. The positioning assembly 4 is located in a spherical block 22 on the axis of the filling conduit 1, see Figure 7As shown. The positioning assembly 4 includes a conical top block 41 and a plurality of positioning units 42, and each positioning unit 42 specifically includes: an ejector block 421, a protruding rod 422, a limit spring 423, and a limit block 424. Specifically, one end of the ejector block 421 is movably connected to one end of the conical top block 41, and the ejector block 421 is hemispherical in shape. The ejector block 421 fits with the conical top block 41 and can move relative to each other. The other end of the ejector block 421 is connected to one end of the protruding rod 422, and the other end of the protruding rod 422 passes through the corresponding through hole on the spherical block 22, and is connected to the inner side of the limit block 424 on the outer surface of the main spherical block 22, and the outer side of the limit block 424 is located in the inner cavity of the main spherical sleeve 23. The above-mentioned limit spring 423 is sleeved on the protruding rod 422 and is located between the limit block 424 and the ejector block 421. Specifically as Figure 7-8 As shown. Since the ejection block 421 is hemispherical and fits with the conical top block 41, when the ejection block 421 is pushed, it will slide or squeeze along the surface of the conical top block 41, and the force is transmitted to the protruding rod 422 through the cooperation of the ejection block 421 and the conical top block 41, so that the limit block 424 interacts with the internal structure of the spherical sleeve 23 to achieve the positioning of the spherical block 22. The hemispherical shape of the ejection block 421 and the fit design with the conical top block 41 make the force transmission more stable and controllable during the positioning process, which helps to ensure that the positioning component 4 can accurately position the spherical block 22 at the required position and improve the stability of the filling catheter 1 in the direction.

[0063] After the other end of the conical top block 41 is connected to the other end of the push rod 31, when the push rod 31 is subjected to force, the conical top block 41 will be driven to move, thereby squeezing a plurality of positioning units 42 at the same time, specifically squeezing each ejection block 421, and further driving each protruding rod 422 and the limit block 424 to expand outward, until the outer side of each limit block 424 faces the inner wall of the spherical sleeve 23, thereby fixing the spherical block 22 in a suitable position. In this way, after the filling angle of the filling catheter 1 is adjusted, the positioning and locking effect of the main spherical block 22 and the main spherical sleeve 23 can be achieved, which ensures that the filling catheter 1 can stably point to a target area in the heart, improves the filling accuracy, and at the same time, during the operation, even if there is external interference, it can ensure that the direction of the filling catheter 1 remains unchanged, enhances the operational stability, and reduces the surgical risk.

[0064] Preferably, the stop block 424 is made of silicone rubber, and the diameter of the arc surface of the stop block 424 is larger than the diameter of the spherical block 22, and fits with the inner spherical surface of the spherical sleeve 23. After the spherical block 22 is adjusted in position in the spherical sleeve 23, the stop spring 423 in the positioning assembly 4 pushes the protruding rod 422, so that the stop block 424 interacts with the internal structure of the spherical sleeve 23. Since the stop block 424 is made of silicone rubber, it has a certain elasticity and flexibility. When it fits with the spherical sleeve 23, it can better adapt to the inner surface shape of the spherical sleeve 23. At the same time, it can be appropriately deformed when subjected to a certain pressure to ensure a close fit, thereby achieving a positioning effect. The stop block 424 made of silicone rubber and its design that is larger than the diameter of the spherical block 22 enables a relatively stable positioning between the spherical block 22 and the spherical sleeve 23.

[0065] The dynamic control component 3 is used to realize the positioning and cancellation of the filling conduit 1 after the direction is adjusted. Figure 5-6 As shown, it specifically includes: a push rod 31, a first inclined block 32, a first return spring 33, a second inclined block 34, a second spring 35, an extension rod 36, and a pressing block 37.

[0066] The pressing block 37 is protrudingly arranged on the filling conduit 1 where the main spherical block 22 is installed and in a through hole opened perpendicular to the axial direction of the filling conduit 1, and the lower end of the pressing block 37 contacts one end (upper end) of the extension rod 36. The other end (lower end) of the extension rod 36 extends downward into the installation groove opened inside the filling conduit 1 and is connected to the second inclined block 34. At the same time, the second spring 35 is sleeved on the other end (lower end) of the extension rod 36 and is located between the upper inner wall of the installation groove and the upper surface of the second inclined block 34.

[0067] After one end of the push rod 31 extends into the installation groove along the axial direction of the filling conduit 1 where the main spherical block 22 is installed, it contacts the right end surface of the first inclined block 32, while the left end surface of the first inclined block 32 abuts against the left inner wall of the installation groove through a plurality of first return springs 33. At the same time, the inclined surface of the first inclined block 32 is slidably connected to the inclined surface of the second inclined block 34. After the other end of the push rod 31 extends into the fixing rod 21 on the axis of the filling conduit 1 along the axial direction of the filling conduit 1, it connects to the conical top block 41 in the positioning assembly 4.

[0068] When the pressing block 37 is pressed, the pressing force will be transmitted through the extension rod 36, the second inclined block 34, the first inclined block 32, and the push rod 31. The push rod 31 will transmit the external force to the conical top block 41, thereby driving the conical top block 41 to move. After the conical top block 41 squeezes the ejection block 421, the force is sequentially transmitted to the protruding rod 422, the limit spring 423, and the limit block 424. The limit block 322 squeezes the main spherical sleeve 23 to achieve positioning. When the positioning needs to be released, the pressing block 37 is released. Under the resilience of the first return spring 33 and the limit spring 423, the above structures automatically return to their original positions in sequence to achieve the effect of canceling the positioning.

[0069] In one embodiment, in order to further ensure that the filling conduit 1 is protected from various external factors and potential damage risks without affecting the flexible adjustment direction of the filling conduit 1, as well as the sanitation of the filling process, a preferred method is that the above device further includes: a protective sleeve 7, specifically as follows Figure 1-3 The protective sleeve 7 is located at the connection of the two filling tubes 1 and wraps the direction adjustment component 2 and the like therein. Specifically, the protective sleeve 7 is connected to the filling tube 1 through positioning clamps installed at both ends. The positioning clamps are tightly sleeved on the filling tube 1, so that the flexible and stretchable protective sleeve 7 can be firmly attached to the surface of the filling tube 1.

[0070] Preferably, the protective cover 7 is a flexible and stretchable protective cover.

[0071] More preferably, the material of the flexible and stretchable protective sleeve is TPE (Thermoplastic Elastomer, TPE).

[0072] In actual use, the protective sleeve 7 is fixed on the surface of the filling catheter 1 by a positioning clamp connection. First, as a physical barrier, it can protect the filling catheter 1 from various external factors. In addition, in the surgical environment, there are many factors that may cause damage to the filling catheter 1, such as collision with other surgical instruments, erosion of tissue fluid and possible microbial contamination. The protective sleeve 7 can effectively block these adverse factors and ensure the integrity and safety of the filling catheter 1. Secondly, the flexible and stretchable protective sleeve 7 made of TPE material has the flexibility and stretchability to adapt to the adjustment angle. Whether it is the axial movement of the filling catheter 1 in the guide tube or the direction adjustment through the spherical block 22 and the spherical sleeve 23, the filling catheter 1 can always be protected and supported.

[0073] In another embodiment, in order to ensure visualization of the heart filling process, thereby ensuring convenient operation and precise movements, a preferred method is that the above device further includes: a workbench 5 and a display control screen 6 installed on the workbench 5, and a camera. Among them, a filling catheter 1 away from the filling entry direction is installed on a guide tube connected to the display control screen 6, and the display control screen 6 is electrically connected to the camera installed on the filling catheter 1, so as to visualize the entry process of the filling catheter 1 and ensure that the correct path guidance is provided for the entry of the filling catheter 1. For details, please refer to Fig. 9 .

[0074] The method and process of using the heart filling device proposed in the above embodiment are as follows:

[0075] First, the guide tube connected to the display control screen 6 provides a path guide for the entry of the filling catheter 1, so that it can initially move toward the target area of ​​the heart. Subsequently, through the ingenious cooperation of the ball-jointed movable connection structure formed by the spherical block 22 and the spherical sleeve 23, the filling catheter 1 has flexibility in direction adjustment, and can adjust the direction according to the complex and changeable structure inside the heart, ensuring that the filling catheter 1 can accurately reach the optimal treatment and filling position. The combination of the reset spring rod and the auxiliary ball block and auxiliary ball sleeve further assists in adjusting the direction of the catheter, while enhancing the stability of the catheter, providing double protection for the treatment process.

[0076] When the position of the filling catheter 1 is adjusted, the positioning assembly 4 starts to work, and the ejection block 421 drives the protruding rod 422 to move under the push of the limit spring 423, so that the limit block 424 fits tightly with the spherical sleeve 23, achieving stable positioning and locking. The fitting design of the conical ejection block 41 and the hemispherical ejection block 421 adds stability to the adjustment process of the entire device, so that the device can be more perfectly adapted to the target position of the heart under the operation of the doctor.

[0077] During the filling process, when the positioning lock needs to be released, the pressing block 37 is released, and under the rebound force of the first return spring 33 and the limit spring 423, the above structures automatically return to their original positions in sequence, thereby achieving the effect of canceling the positioning.

[0078] In the above process, the flexible and stretchable protective cover 7 on the filling catheter 1 can effectively protect the catheter from interference and damage by external factors, and can also adaptively adjust with the movement of the catheter to ensure the smoothness of the catheter during operation.

[0079] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0080] 1. The heart filling device proposed in the present invention can flexibly adjust the direction of the filling catheter 1 during filling, so as to cope with the complex three-dimensional structure inside the heart and achieve filling of specific corners of different chambers of the heart, with better flexibility and better filling effect.

[0081] 2. A heart filling device proposed in the present invention has a ball joint structure composed of a spherical block and a spherical sleeve 23, which is similar to the movable joint structure of the human body. It can flexibly change the filling direction and angle. At the same time, it has the function of locking and unlocking after reaching the predetermined position. It can not only flexibly adjust the angle and position during filling, but also lock and fix it in time, while meeting the requirements of direction adjustment flexibility and filling stability of the heart filling device.

[0082] 3. A heart filling device proposed by the present invention is provided with a flexible and stretchable protective sleeve at the connection of the filling tube. As a physical barrier, it can protect the filling catheter from various external factors, improve hygiene, and avoid damage to the filling catheter caused by other instruments in the surgical environment.

[0083] 4. The cardiac filling device proposed in the present invention is provided with a dynamic control component, which can lock and unlock the positioning mechanism of the filling process by pressing a pressing block provided on the filling catheter, thereby meeting the requirements of filling stability.

[0084] 5. The heart filling device proposed in the present invention is also equipped with a workbench, a display control screen, and a camera, which not only facilitates the filling operation of medical staff, but also can visualize the entry process of the filling catheter, ensuring that the correct path guidance is provided for the entry of the filling catheter, thereby improving the filling effect.

[0085] 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 sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0086] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cardiac filling device, characterized in that: The device comprises: Two filling conduits (1), a direction adjustment component (2), a dynamic control component (3), and a positioning component (4); the two filling conduits (1) are movably connected via the direction adjustment component (2); the positioning component (4) is used to lock and position the direction adjustment component (2); and the dynamic control component (3) is used to control the positioning component (4) to achieve or release positioning; The direction adjustment component (2) specifically comprises: a fixing rod (21), a spherical block (22), and a spherical sleeve (23), and the spherical block (22) and the spherical sleeve (23) are respectively fixed to the opposite ends of the two filling conduits (1) through the fixing rod (21), and the spherical block (22) and the spherical sleeve (23) cooperate to form a ball joint type movable connection structure.

2. The heart filling device according to claim 1, characterized in that The numbers of the fixing rod (21), the spherical block (22), and the spherical sleeve (23) are 2n, n, and n respectively; wherein n is a positive integer greater than or equal to 1.

3. The heart filling device according to claim 1, characterized in that The positioning assembly (4) comprises: a conical top block (41) and a plurality of positioning units (42), each of the positioning units (42) comprising: a ejection block (421), a protruding rod (422), a limiting spring (423), and a limiting block (424); wherein: one end of the ejection block (421) is movably connected to one end of the conical top block (41), and the other end of the ejection block (421) is connected to one end of the protruding rod (422); the other end of the protruding rod (422) passes through a corresponding through hole on the spherical block (22) and is connected to the inner side surface of the limiting block (424) on the outer surface of the main spherical block (22); the outer side surface of the limiting block (424) is located in the inner cavity of the main spherical sleeve (23); the limiting spring (423) is sleeved on the protruding rod (422) and is located between the limiting block (424) and the ejection block (421).

4. The heart filling device according to claim 1, characterized in that The dynamic control component (3) comprises: a push rod (31), a first inclined block (32), a first return spring (33), a second inclined block (34), a second spring (35), an extension rod (36), and a pressing block (37); wherein: the pressing block (37) is protrudingly arranged on the filling conduit (1) and is located in a through hole opened in a vertical axial direction of the filling conduit (1); the lower end of the pressing block (37) contacts one end of the extension rod (36); the other end of the extension rod (36) extends downward into a mounting groove opened in the filling conduit (1) and is connected to the second inclined block (34); the second spring (35) is sleeved on the extension rod (36); ) and is located between the upper inner wall of the installation groove and the upper surface of the second inclined block (34); one end of the push rod (31) extends into the installation groove along the axial direction of the filling conduit (1) and contacts the right end surface of the first inclined block (32), while the left end surface of the first inclined block (32) is pressed against the left inner wall of the installation groove through a plurality of first return springs (33); the inclined surface of the first inclined block (32) is slidably connected to the inclined surface of the second inclined block (34); the other end of the push rod (31) extends into the fixing rod (21) on the axis of the filling conduit (1) along the axial direction of the filling conduit (1) and is connected to the conical top block (41) in the positioning assembly (4).

5. The heart filling device according to claim 1, characterized in that The device further comprises: a protective sleeve (7), wherein the protective sleeve (7) is located at the connection between the two filling conduits (1).

6. The heart filling device of claim 2, wherein: The n=5, when n=5, one end of the five fixing rods (21) is fixed on one filling conduit (1), the five spherical blocks (22) are respectively mounted on the other ends of the five fixing rods (21), and one end of the other five fixing rods (21) is fixed on another filling conduit (1), and the other ends of the five fixing rods (21) are connected to spherical sleeves (23); the five spherical blocks (22) and the five spherical sleeves (23) are arranged opposite to each other, forming a connection structure similar to a ball joint.

7. The heart filling device of claim 6, wherein: Two fixing rods (21), two spherical blocks (22), and two spherical sleeves (23) are located on the axes of the two filling conduits (1) as a main ball joint connection structure, and the other four groups of fixing rods (21), spherical blocks (22), and spherical sleeves (23) are evenly distributed around the axes of the two filling conduits (1) as a symmetrical center as an auxiliary ball joint connection structure.

8. The heart filling device of claim 6, wherein: The fixing rod (21) in the auxiliary ball joint connection structure can be replaced by a return spring rod.

9. The heart filling device of claim 5, wherein: The protective sleeve (7) is a flexible and stretchable protective sleeve.

10. The cardiac filling device according to any one of claims 1 to 9, characterized in that: The device further comprises: a workbench (5), a display control screen (6) mounted on the workbench (5), and a camera; wherein a filling conduit (1) away from a filling entry direction is mounted on a guide tube connected to the display control screen (6), and the display control screen (6) is electrically connected to the camera mounted on the filling conduit (1).

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