Stabilizer for heart valve interventional operation

Abstract

The utility model provides a stabilizer for a heart valve interventional operation. The stabilizer comprises a bed clamping part, an adjusting part and an adapting part which are connected in sequence, the bed clamp part is used for being detachably connected with a bed body; the adaptive part is used for clamping the conveying system; the adjusting part comprises a fixing rod, a first spherical joint, a first adjusting mechanism, an autorotation joint, a second adjusting mechanism and a second spherical joint which are connected in sequence; the bottom end of the fixing rod is connected with the bed clamp part; the first spherical joint is arranged at the top end of the fixing rod; the second adjusting mechanism is connected with the adaptive part through a second spherical joint; the stabilizer further comprises a joint locking part connected with the autorotation joint. The joint locking part is used for synchronously actuating the first adjusting mechanism and the second adjusting mechanism, so that the first adjusting mechanism and the second adjusting mechanism respectively lock the first spherical joint and the second spherical joint; through the configuration, the positioning requirements of different positions and angles of the conveying system can be met, the position and angle adjustment is simple and convenient, and the position and angle adjustment flexibility can be improved.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a stabilizer used in heart valve intervention surgery. Background Art

[0002] A valve is a membrane-like structure that can open and close in the organs of humans or certain animals. There are four valves in each person's heart, namely the aortic valve connecting the left ventricle and the aorta, the pulmonary valve connecting the right ventricle and the pulmonary artery, the mitral valve connecting the left atrium and the left ventricle, and the tricuspid valve connecting the right atrium and the right ventricle. The valves all act as one-way valves, allowing blood to flow from one direction to the other but not back. Due to improved survival rates and an aging population, the prevalence of valvular heart disease (VHD) is increasing worldwide, and severe valvular disease can lead to death. In the past, surgical thoracotomy was the standard treatment for valvular disease. However, in recent years, with the development of medical technology, valvular heart disease can also be effectively treated through interventional methods.

[0003] Interventional therapy is a minimally invasive treatment using modern high-tech means. Its incision (puncture point) is only the size of a grain of rice, or through the original cavity of the human body, under the guidance of imaging equipment, special catheters, guide wires and other precision instruments are introduced into the human body to diagnose or treat local lesions without cutting human tissue. The characteristics of interventional therapy are small trauma, simplicity, safety, effectiveness, few complications, and significantly shortened hospital stay. Limited by current technical conditions, heart valve interventional surgery has the execution part of the delivery system located at or near the lesion in the human body, and the operation part of the delivery system is located outside the body for the convenience of the operator to control. In addition, for different diseases, the selected access method is different, and the angle and position required by the delivery system are also different. If the operator (mainly medical staff) holds and controls the proximal end of the delivery system during the operation, it is not conducive to improving the efficiency of the operation and the accuracy of the surgical operation. Therefore, in some application scenarios, the stabilizer is supported at the proximal end of the delivery system.

[0004] There are two main types of stabilizers: fixed and adjustable. Fixed stabilizers are usually non-adjustable, with narrow application range and great limitations. Adjustable stabilizers have multiple degrees of freedom and can meet the use requirements of conveying systems at different positions and angles. However, existing adjustable stabilizers still have problems such as complex structure, cumbersome adjustment operation, and inflexible installation points.

[0005] It should be noted that the information disclosed in the background technology section of this application is only intended to deepen the understanding of the general background technology of this application, and should not be regarded as an admission or any form of implication that the information constitutes prior art already known to those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of the utility model is to provide a stabilizer for use in heart valve interventional surgery, which can meet the positioning requirements of different positions and angles of the delivery system, make the adjustment of the position and angle simpler and more convenient, and increase the flexibility of the position and angle adjustment.

[0007] To achieve the above-mentioned purpose, the utility model provides a stabilizer for cardiac valve intervention surgery, which comprises a bed clamp part, an adjustment part and an adapter part connected in sequence; the bed clamp part is used to be detachably connected to the bed body; the adapter part is used to clamp the delivery system;

[0008] The adjusting part comprises a fixing rod, a first spherical joint, a first adjusting mechanism, a rotation joint, a second adjusting mechanism and a second spherical joint which are connected in sequence; the bottom end of the fixing rod is connected to the bed clamp part; the first spherical joint is arranged at the top end of the fixing rod; the second adjusting mechanism is connected to the adapting part through the second spherical joint;

[0009] The stabilizer also includes a joint locking portion connected to the rotation joint; the joint locking portion can synchronously actuate the first adjustment mechanism and the second adjustment mechanism so that the first adjustment mechanism and the second adjustment mechanism lock the first spherical joint and the second spherical joint respectively.

[0010] Optionally, the first spherical joint and the second spherical joint both include a ball head seat and a connecting ball head arranged in the ball head seat, and the connecting ball head in the second spherical joint has a connecting rod extending out of the ball head seat, and the connecting rod is detachably connected to the adapter part.

[0011] Optionally, the adapting part includes an adapting seat, a clamp and an adapting hand wheel; the clamp is arranged in a mounting cavity defined by the adapting seat and is used to directly or indirectly clamp the conveying system;

[0012] The clamp comprises two clamping blocks arranged opposite to each other; the connecting rod is threadedly connected to the adapting seat and one of the clamping blocks; the adapting hand wheel is threadedly connected to the adapting seat and the other of the clamping blocks on the opposite side of the connecting rod;

[0013] After the adapting hand wheel rotates, it drives the clamping block connected thereto to move away from or approach another clamping block.

[0014] Optionally, the adapter part also includes a track module, which includes a linear guide, a chuck and a mounting portion; the linear guide is arranged on the mounting portion; the chuck is slidably arranged on the linear guide; the clamp is used to clamp the mounting portion and clamp the conveying system through the chuck.

[0015] Optionally, the number of the chucks is one or more. When the number of the chucks is plural, the chucks are arranged along the extension direction of the linear guide rail.

[0016] Optionally, the track module also includes a gear rack mechanism, which includes a knob, a gear and a rack connected in sequence; the rack is arranged in parallel on the linear guide rail; the knob is arranged on the mounting portion; after the knob is rotated, the gear is driven to move on the rack, and then the gear drives the chuck to slide along the linear guide rail.

[0017] Optionally, the bed clamp part includes a fixing seat, a clamping plate and a bed clamp adjusting hand wheel;

[0018] The fixing seat includes a column, a fixing plate and a bottom plate; the fixing plate and the bottom plate are both connected to the column; the clamping plate is located between the fixing plate and the bottom plate; the clamping plate and the fixing plate are used to cooperate with each other to clamp and fix the bed body; the bed clamp adjusting handwheel is threadedly connected to the bottom plate; the bed clamp adjusting handwheel is also connected to the clamping plate via the bottom plate; after the bed clamp adjusting handwheel is rotated, the clamping plate is driven to move along the extension direction of the column to make the clamping plate move away from or close to the fixing plate.

[0019] Optionally, the bed clamp part also includes two guide rods and two guide holes; the two guide rods are symmetrically arranged on the periphery of the bed clamp adjusting handwheel; the two guide holes are arranged on the base plate and symmetrically arranged on the periphery of the bed clamp adjusting handwheel; one end of the two guide rods is fixed to the clamping plate, and the other ends of the two guide rods are inserted into the two guide holes one by one.

[0020] Optionally, the first adjustment mechanism and the second adjustment mechanism both include an adjustment rod and a push rod disposed in the adjustment rod; the first spherical joint and the second spherical joint both include a ball head seat and a connecting ball head disposed in the ball head seat; one end of each of the adjustment rods is fixed to the corresponding ball head seat, and the other end of each of the adjustment rods is fixed to the rotation joint;

[0021] The joint locking part includes an adjusting hand wheel and a motion conversion mechanism; the adjusting hand wheel is rotatably connected to the rotation joint; the motion conversion mechanism is arranged in the rotation joint and is respectively connected to the adjusting hand wheel and the push rod; one end of each of the push rods is connected to the motion conversion mechanism, and the other end of each of the push rods extends into the corresponding ball head seat and is aligned with the corresponding connecting ball head;

[0022] The motion conversion mechanism is used to convert the rotational motion of the adjusting hand wheel into the linear motion of the pushing rod along the extending direction of the adjusting rod, and the extending direction of the adjusting rod is perpendicular to the axial direction of the adjusting hand wheel;

[0023] After the adjusting hand wheel rotates, the motion conversion mechanism is driven to drive the pushing rod to move along the corresponding extending direction of the adjusting rod, so that the other end of the pushing rod is clamped on the corresponding connecting ball head.

[0024] Optionally, the motion conversion mechanism includes a threaded slider and an adjusting slider; the threaded slider is threadedly matched with the adjusting handwheel; the conical surface of the threaded slider is matched with the inclined surfaces of the two adjusting sliders; one end of each of the push rods is connected to a corresponding one of the adjusting sliders;

[0025] After the adjusting hand wheel rotates, the threaded slider is driven to move along the axial direction of the adjusting hand wheel, so that the threaded slider drives the pushing rod to move along the corresponding extending direction of the adjusting rod through the adjusting slider.

[0026] Optionally, the rotation joint includes an adjusting upper cover and an adjusting lower cover; the adjusting upper cover and the adjusting lower cover are connected via the adjusting hand wheel; the adjusting upper cover and the adjusting lower cover can rotate relative to each other; one of the adjusting upper cover and the adjusting lower cover is fixed to one end of the adjusting rod in the first adjusting mechanism, and the other of the adjusting upper cover and the adjusting lower cover is fixed to one end of the adjusting rod in the second adjusting mechanism; the motion conversion mechanism is movably arranged in the internal space enclosed by the adjusting upper cover and the adjusting lower cover.

[0027] Optionally, a guide structure is provided inside the rotation joint, and the guide structure cooperates with the motion conversion mechanism to limit the movement direction of the motion conversion mechanism.

[0028] Compared with the prior art, the stabilizer used in the cardiac valve intervention surgery provided by the utility model has at least the following advantages:

[0029] The stabilizer described above includes: a bed clamp part, an adjustment part and an adapter part connected in sequence; the bed clamp part is used to be detachably connected to the bed body; the adapter part is used to clamp the conveying system; the adjustment part includes a fixed rod, a first spherical joint, a first adjustment mechanism, a rotation joint, a second adjustment mechanism and a second spherical joint connected in sequence; the bottom end of the fixed rod is connected to the bed clamp part; the first spherical joint is arranged at the top end of the fixed rod; the second adjustment mechanism is connected to the adapter part through the second spherical joint; the stabilizer also includes a joint locking part connected to the rotation joint; the joint locking part can synchronously actuate the first adjustment mechanism and the second adjustment mechanism so that the first adjustment mechanism and the second adjustment mechanism respectively lock the first spherical joint and the second spherical joint.

[0030] When using the stabilizer provided by the utility model, on the one hand, the position and angle of the adapter part can be adjusted through the adjustment part, and the adjustable positions and angles are more numerous and more flexible, so that the adapter part can clamp the delivery system at different positions and angles, better meeting the positioning requirements of the delivery system at different positions and angles during the operation; on the other hand, the adjustment part can be positioned and locked with one click through the same joint locking part, making the adjustment of the position and angle simpler and more convenient, thereby improving the surgical efficiency and the accuracy of the surgical operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Those skilled in the art will appreciate that the drawings are provided for a better understanding of the present invention and do not constitute any limitation on the scope of the present invention.

[0032] Figure 1 and Figure 2 This is a schematic diagram of the overall structure of a stabilizer provided by the utility model according to an embodiment;

[0033] Figure 3 This is a structural schematic diagram of a bed clamp part provided by the utility model according to an embodiment;

[0034] Figure 4 A schematic diagram of the structure of an adjustment part provided by the utility model according to an embodiment;

[0035] Figure 5 A schematic cross-sectional structure diagram of an adjusting part provided by the utility model according to an embodiment;

[0036] Figure 6 and Figure 7 This is a schematic diagram of the structure of the adjustment part at the rotation joint provided by the utility model according to one embodiment;

[0037] Figure 8 A schematic diagram of the exploded structure of an adapter part provided by the utility model according to an embodiment;

[0038] Fig. 9 The utility model is a schematic structural diagram of an accessory part provided according to an embodiment.

[0039] [The accompanying drawings are described as follows]:

[0040] 100-bed clamp part; 101-fixed seat; 1011-post; 1012-fixed plate; 1013-bottom plate; 102-bed clamp connecting handwheel; 103-clamping plate; 104-bed clamp adjusting handwheel; 105-guide rod; 106-guide hole; 200-adjusting part; 201-fixed rod; 202-first spherical joint; 2021-connecting ball head; 2022-ball head seat; 2023-connecting rod; 203-first adjusting mechanism; 2031-adjusting rod; 2032-pushing rod; 204- Rotating joint; 2041-adjusting upper cover; 2042-adjusting lower cover; 205-second adjusting mechanism; 206-second spherical joint; 207-joint locking part; 2071-adjusting handwheel; 2072-threaded slider; 2073-adjusting slider; 300-adapting part; 301-fixing seat; 302-clamp; 3021, 3022-clamping block; 303-adapting handwheel; 304-track module; 3041-linear guide; 3042-chuck; 3043-installing part; 3044-knob. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0042] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, 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 number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or integrated; they can be mechanically connected, directly connected, or indirectly connected through an intermediate medium, or they can be internally connected between two elements or the interaction relationship between two elements, unless otherwise clearly specified. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "below" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature can mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature. It should be noted that when an element is referred to as "fixed on" or "set on" another element, it can be directly on the other element or there can be an element in the middle. When an element is considered to be "connected" to another element, it may be directly connected to another element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0043] The purpose of the present application is to provide a stabilizer for use in heart valve interventional surgery to solve the problems of existing adjustable stabilizers, such as complex structure, cumbersome adjustment operation, and inflexible installation points.

[0044] The following description is given with reference to the accompanying drawings.

[0045] Figure 1 and Figure 2 FIG. 1 is a schematic diagram of the structure of a stabilizer in a preferred embodiment of the present application. Figure 1 and Figure 2 As shown, the stabilizer includes a bed clamping portion 100, an adjusting portion 200 and an adapting portion 300 which are connected in sequence.

[0046] The bed clamp part 100 is mainly used to fix the stabilizer to the bed body. The bed clamp part 100 is used to be detachably connected to the bed body. The bed clamp part 100 can be connected to any suitable position on the bed body. It should be noted that there are multiple ways to connect the bed clamp part 100 to the bed body, and at least one of them can be selected to perform. Preferably, one connection method between the bed clamp part 100 and the bed body is a clamping connection. The clamping connection is achieved by clamping the bed body with the bed clamp part 100, which can be elastic clamping or pressure clamping; elastic clamping is to clamp the bed clamp part 100 and the bed body together by elasticity; pressure clamping is to clamp the bed clamp part 100 and the bed body together by pressure. When clamping connection, the structure of the bed clamp part 100 is simple, easy to install and disassemble, and the installation position on the bed body can be flexibly selected. The bed body can be any bed structure for patients or individuals to lie on, such as a hospital bed or an operating bed. Generally, the bed body is used in places such as wards and operating rooms.

[0047] Figure 3 FIG. 1 is a schematic diagram of the structure of the bed clamp part 100 in a preferred embodiment of the present application. Figure 3As shown, in one embodiment, the bed clamp part 100 includes a fixing seat 101, a clamping plate 103 and a bed clamp adjusting hand wheel 104; the fixing seat 101 includes a column 1011, a fixing plate 1012 and a bottom plate 1013; the fixing plate 1012 and the bottom plate 1013 are both connected to the column 1011; the clamping plate 103 is located between the fixing plate 1012 and the bottom plate 1013; the clamping plate 103 and the fixing plate 1012 are used to cooperate and clamp the bed body together; the bed clamp adjusting hand wheel 104 is threadedly connected to the bottom plate 1013; the bed clamp adjusting hand wheel 104 is also connected to the clamping plate 103 via the bottom plate 1013. The bed clamp adjusting hand wheel 104 can rotate and move up and down, thereby driving the clamping plate 103 to move up and down. As in the present embodiment, a threaded hole is provided at the center of the base plate 1013 for assembling the bed clamp adjusting hand wheel 104. One end of the bed clamp adjusting hand wheel 104 enters the other side of the base plate 1013 through the threaded hole of the base plate 1013 and is connected to the clamping plate 103. In this way, after the bed clamp adjusting hand wheel 104 is driven to rotate, the clamping plate 103 is driven to move along the extension direction of the column 1011, thereby making the clamping plate 103 move away from or close to the fixed plate 1012. This structure is simple as a whole, easy to disassemble and assemble, and low in cost. When the clamping plate 103 and the fixed plate 1012 cooperate to clamp the bed body, the bed clamp adjusting hand wheel 104 can also be locked with the base plate 1013.

[0048] The connection method between the bed clamp part 100 and the adjustment part 200 is not limited. In the embodiment of the present application, the bed clamp part 100 is threadedly connected to the adjustment part 200. However, it should be recognized that, in addition to the threaded connection, a person skilled in the art can find other alternatives based on the description of the present application to achieve the connection between the bed clamp part 100 and the adjustment part 200, not just including the scope disclosed in the embodiment of the present application.

[0049] In the exemplary embodiment described in the figure, the bed clamp part 100 also includes a bed clamp connecting hand wheel 102. A threaded hole can be provided on the column 1011, and the bed clamp connecting hand wheel 102 is installed through the threaded hole, so that the bed clamp connecting hand wheel 102 is always fixed on the column 1011, and the bed clamp connecting hand wheel 102 can be optionally set at the top of the column 1011. In this way, the column 1011 of the bed clamp part 100 is locked and connected with the adjustment part 200 through the bed clamp connecting hand wheel 102.

[0050] Preferably, the bed clamp part 100 further includes two guide rods 105 and two guide holes 106; the two guide rods 105 are symmetrically arranged on the periphery of the bed clamp adjustment hand wheel 104; the two guide holes 106 are arranged on the bottom plate 1013 and symmetrically arranged on the periphery of the bed clamp adjustment hand wheel 104; one end of the two guide rods 105 is fixed to the clamping plate 103, and the other ends of the two guide rods 105 are inserted into the two guide holes 106 in a one-to-one correspondence. This structural design can guide and limit the clamping plate 103 through the cooperation of the guide rods 105 and the guide holes 106, which not only prevents the rotation of the clamping plate 103, but also prevents the clamping plate 103 from lateral deviation, thereby effectively solving the problem of the clamping plate 103 being stuck within the travel.

[0051] The adjustment part 200 is mainly used to adjust the position and angle (i.e., position and posture) of the adapter part 300 to meet the positioning requirements of different positions and angles of the delivery system during heart valve intervention surgery. This application does not involve structural improvements to the delivery system, so those skilled in the art can refer to the prior art to understand the delivery system, and no detailed description is given for this.

[0052] Figure 4 Schematic diagram of the structure of the adjustment part 200 in a preferred embodiment of the present application. Figure 5 FIG. 2 is a schematic cross-sectional view of the adjustment part 200 in a preferred embodiment of the present application. Figure 4 and Figure 5 As shown, the adjustment part 200 is equivalent to a multi-degree-of-freedom mechanical arm. Specifically, the adjustment part 200 includes a fixed rod 201, a first spherical joint 202, a first adjustment mechanism 203, a rotation joint 204, a second adjustment mechanism 205 and a second spherical joint 206 connected in sequence; the bottom end of the fixed rod 201 is connected to the bed clamp part 100. For example, in this embodiment, the bottom end of the fixed rod 201 is connected to the top of the column 1011 through the bed clamp connection hand wheel 102 for locking connection; the first spherical joint 202 is set at the top of the fixed rod 201; the second adjustment mechanism 205 is connected to the adapter part 300 through the second spherical joint 206. Preferably, the second spherical joint 206 is detachably connected to the adapter part 300, and a more suitable connection method is a threaded connection. When the adapter part 300 is detachably connected to the second spherical joint 206, the adapter part 300 can be replaced at any time to adapt to conveying systems of different shapes and sizes.

[0053] The first spherical joint 202 enables the first adjustment mechanism 203 and the fixing rod 201 connected thereto to move freely in multiple directions, and the second spherical joint 206 enables the second adjustment mechanism 205 and the adapter part 300 connected thereto to move freely in multiple directions. The first spherical joint 202 and the second spherical joint 206 both include a connecting ball head 2021 and a ball head seat 2022, wherein the connecting ball head 2021 is arranged in the ball head seat 2022; the connecting ball head 2021 is a spherical connecting member, usually made of metal, and has a smooth surface; the ball head seat 2022 is a concave structure that matches the connecting ball head 2021, and the ball head seat 2022 provides support and guidance for the connecting ball head 2021; the free movement of the connecting ball head 2021 in the ball head seat 2022 can adapt to different angles and position requirements. In addition, the rotation joint 204 enables the first adjustment mechanism 203 and the second adjustment mechanism 205 connected thereto to rotate relative to each other. The rotation axis of the rotation joint 204 is generally perpendicular to the extension direction of the first adjustment mechanism 203 and the second adjustment mechanism 206 .

[0054] With such configuration, the stabilizer of the present application can adjust the position and angle of the adapter part 300 through the adjustment part 200, and the adjustable positions and angles are more numerous and more flexible, thereby enabling the adapter part 300 to clamp the delivery system at more different positions and angles, and better meet the positioning requirements of the delivery system at different positions and angles during surgery. It should also be understood that the adapter part 300 is mainly used to clamp the proximal end of the delivery system, such as the handle of the delivery system or other operating parts located at the proximal end.

[0055] In addition, the stabilizer of the embodiment of the present application also includes a joint locking portion 207 connected to the rotation joint 204, and the joint locking portion 207 can synchronously actuate the first adjustment mechanism 203 and the second adjustment mechanism 205, so that the first adjustment mechanism 203 and the second adjustment mechanism 205 respectively lock the first spherical joint 202 and the second spherical joint 206, that is, the first adjustment mechanism 203 and the second adjustment mechanism 205 are simultaneously actuated by the joint locking portion 207, and the first adjustment mechanism 203 locks the first spherical joint 202, so that the first spherical joint 202 cannot rotate, and the second adjustment mechanism 205 locks the second spherical joint 206, so that the second spherical joint 206 cannot rotate. In this way, the stabilizer of the present application can also locate and lock the adjustment portion 200 with one key through the same joint locking portion 207, and then locate and lock the delivery system, so that the adjustment of the position and angle is simpler and more convenient, thereby improving the efficiency of the operation and the accuracy of the operation.

[0056] Continue to see Figure 4 and Figure 5In one embodiment, the first adjustment mechanism 203 and the second adjustment mechanism 205 each include an adjustment rod 2031 and a push rod 2032 disposed in the adjustment rod 2031; one end of each adjustment rod 2031 is fixed to the corresponding ball head seat 2022, and the other end of each adjustment rod 2031 is fixed to the rotation joint 204, and the fixing connection method includes but is not limited to welding. In specific implementation, the connecting ball head 2021 of the first spherical joint 202 can be fixed to the top of the fixed rod 201 by means of thread or welding, and the connecting ball head 2021 of the second spherical joint 206 can be fixed to the adapter seat 301 by a similar method.

[0057] Accordingly, in one embodiment, the joint locking part 207 includes an adjusting hand wheel 2071 and a motion conversion mechanism; the adjusting hand wheel 2071 is rotatably connected to the rotation joint 204; the motion conversion mechanism is disposed in the rotation joint 204 and is respectively connected to the adjusting hand wheel 2071 and the push rod 2032; one end of each push rod 2032 is connected to the motion conversion mechanism, and the other end (which may be arc-shaped) of each push rod 2032 extends into the corresponding ball head seat 2022 and is aligned with the corresponding connecting ball head 2021. In this regard, the rotational motion of the adjusting hand wheel 2071 can be converted into a linear motion of the push rod 2032 along the extension direction of the adjusting rod 2031 by the motion conversion mechanism. The extension direction of the adjusting rod 2031 is perpendicular to the axial direction of the adjusting hand wheel 2071. Then, after the adjusting hand wheel 2071 rotates, the motion conversion mechanism is driven to drive the push rod 2032 to move along the extension direction of the corresponding adjusting rod 2031, so that the other end of the push rod 2032 is clamped on the corresponding connecting ball head 2021, so that the connecting ball head 2021 cannot rotate. Therefore, the two spherical joints can be positioned and locked by one adjusting hand wheel 2071, which has a simple structure and is extremely convenient to adjust.

[0058] Continue to see Figure 5 In one embodiment, the motion conversion mechanism includes a threaded slider 2072 and an adjusting slider 2073; the threaded slider 2072 is threadedly matched with the adjusting hand wheel 2071; the conical surface of the threaded slider 2072 is matched with the inclined surfaces of the two adjusting sliders 2073; and one end of each push rod 2032 is connected to a corresponding adjusting slider 2073. In this way, after the adjusting hand wheel 2071 rotates, the threaded slider 2072 is driven to move along the axial direction of the adjusting hand wheel 2071, so that the threaded slider 2072 drives the push rod 2032 to move along the extension direction of the corresponding adjusting rod 2031 through the adjusting slider 2073, and has the advantages of high transmission efficiency and low manufacturing cost.

[0059] In one embodiment, the rotation joint 204 includes an upper adjustment cover 2041 and a lower adjustment cover 2042; the upper adjustment cover 2041 and the lower adjustment cover 2042 are connected by an adjustment hand wheel 2071; the upper adjustment cover 2041 and the lower adjustment cover 2042 are fixed in the axial direction of the adjustment hand wheel 2071 and cannot move relative to each other, but the upper adjustment cover 2041 and the lower adjustment cover 2042 can rotate relative to each other in the circumferential direction around the axial direction of the adjustment hand wheel 2071, and accordingly, the first adjustment mechanism 203 and the second adjustment mechanism 205 can rotate relative to each other; one of the upper adjustment cover 2041 and the lower adjustment cover 2042 is fixed to one end of the adjustment rod 2031 in the first adjustment mechanism 203, and the other of the upper adjustment cover 2041 and the lower adjustment cover 2042 is fixed to one end of the adjustment rod 2031 in the second adjustment mechanism 205. Further, the motion conversion mechanism is movably arranged in the internal space enclosed by the upper adjustment cover 2041 and the lower adjustment cover 2042.

[0060] In order to prevent the motion conversion mechanism from deviating within the stroke, preferably, a guide structure is provided inside the rotation joint 204, and the guide structure cooperates with the motion conversion mechanism to limit the motion direction of the motion conversion mechanism. The guide structure is, for example, a guide protrusion or a guide groove, which can be directly formed on the upper adjustment cover 2041 and the lower adjustment cover 2042.

[0061] See also Figures 5 to 7 In a specific embodiment, two adjusting sliders 2073 are provided in the inner space enclosed by the upper adjusting cover 2041 and the lower adjusting cover 2042. The two adjusting sliders 2073 are arranged on the periphery of the threaded slider 2072, and the two ends of the two adjusting sliders 2073 along the axial direction of the adjusting hand wheel 2071 can respectively cooperate with the guide protrusions in the upper adjusting cover 2041 and the lower adjusting cover 2042 to move along the guide protrusions. In addition, the inner side inclined surfaces of the two adjusting sliders 2073 can contact the conical surface of the threaded slider 2072, thereby realizing translational motion in different directions.

[0062] Taking the movement of the push rod 2032 in the first adjustment mechanism 203 as an example, the push rod 2032 retreats along the extension direction of the adjustment rod 2031 toward the direction close to the fixed rod 201 under the drive of the adjustment slider 2073 to clamp the connecting ball head 2021 on the first spherical joint 202, so that the connecting ball head 2021 on the first spherical joint 202 can no longer rotate. For the push rod 2032 in the second adjustment mechanism 205, the push rod 2032 retreats along the extension direction of the corresponding adjustment rod 2031 toward the direction close to the adapter part 300 under the drive of another adjustment slider 2073 to clamp the connecting ball head 2021 on the second spherical joint 206, so that the connecting ball head 2021 on the second spherical joint 206 can no longer rotate. To this end, only one adjustment hand wheel 2071 is needed to control the threaded slider 2072 to move up and down on the adjustment hand wheel 2071, thereby adjusting and controlling the two push rods 2032 at the same time.

[0063] Optionally, the adjusting hand wheel 2071 has an external thread, and the threaded slider 2072 is provided with an internal thread that matches the external thread. Of course, the arrangement may also be reversed, so that the threaded slider 2072 has an external thread, and the adjusting hand wheel 2071 has an internal thread. The threaded slider 2072 may have a variety of structures, including but not limited to a trapezoidal cylindrical cone structure, such as an inverted trapezoidal structure, as long as the side of the threaded slider 2072 in contact with the adjusting slider 2072 is a conical surface. It should be noted that the threaded slider 2072 is limited and can only move up and down, and cannot rotate in the circumferential direction. In practice, the threaded slider 2072 can be limited by adjusting at least one of the lower cover 2042 and the upper cover 2041 to prevent the threaded slider 2072 from rotating. Specifically in this embodiment, a groove is provided on the threaded slider 2072, and a limiting cover is provided on the adjusting lower cover 2042. By matching the groove with the limiting cover, the threaded slider 2072 can be prevented from rotating, so that the threaded slider 2072 can only move up and down.

[0064] The adjusting hand wheel 2071 generally passes through the adjusting upper cover 2041 and the adjusting lower cover 2042, rotatably connecting the two together. Moreover, the adjusting hand wheel 2071 can rotate relative to the adjusting upper cover 2041 and the adjusting lower cover 2042, but the adjusting hand wheel 2071 is also limited and cannot move up and down. Optionally, the bottom of the adjusting hand wheel 2071 is limited by the adjusting lower cover 2042 to achieve axial limitation.

[0065] There is no particular limitation on the connection between the adjusting portion 200 and the adapting portion 300. In a preferred embodiment, the second spherical joint 206 is threadedly connected to the adapting portion 300. Figure 4Preferably, the connecting ball head 2021 in the second spherical joint 206 has a connecting rod 2023 extending out of the ball head seat 2022, and the connecting rod 2023 is detachably connected to the adapter part 300, and a more suitable method is a threaded connection, which facilitates the replacement of the adapter part 300 according to the specifications of the conveying system.

[0066] The structure of the adapter part 300 is not limited to the structure described in the figure, as long as the adapter part 300 can be detachably clamped to the conveying system. Moreover, the adapter part 300 can be adjusted and replaced according to the structure of the conveying system, so as to meet the clamping requirements of different conveying systems.

[0067] Figure 8 FIG. 1 is a schematic diagram of the exploded structure of the adapter part 300 in a preferred embodiment of the present application. Fig. 9 FIG. 1 is a schematic diagram of the structure of a track module in a preferred embodiment of the present application. Figure 8 and Fig. 9 As shown, in one embodiment, the adapting part 300 includes an adapting seat 301, a clamp 302 and an adapting hand wheel 303; the clamp 302 is arranged in the installation cavity defined by the adapting seat 301, and is used to clamp the conveying system directly or indirectly; the clamp 302 includes two clamping blocks 3021 and 3022 arranged opposite to each other, and the conveying system is clamped and fixed by the two clamping blocks 3021 and 3022. Among them, the second spherical joint 206 is connected to the adapting seat 301 and a clamping block 3021, and this connection is preferably a detachable connection to facilitate the replacement of the adapting seat 301 and the clamping block 3021. More preferably, the connecting rod 2023 is threadedly connected to the adapting seat 301 and a clamping block 3021. In addition, the adapting hand wheel 303 is connected to the adapting seat 301 and another clamping block 3022, preferably in a detachable connection. Preferably, the adapting hand wheel 303 is threadedly connected to the adapting seat 301 and another clamping block 3022 on the opposite side of the connecting rod 2023. When in use, the adapting hand wheel 303 rotates and drives the clamping block 3022 connected thereto to move away from or approach another clamping block 3021, thereby clamping or releasing the conveying system. The adapting hand wheel 303 can be tightened or loosened. When loosening, the gap between the two clamping blocks 3021 and 3022 can be adjusted to be larger, so as to facilitate the insertion of the conveying system (such as the handle of the conveying system), and the adapting hand wheel 303 is tightened again, that is, the conveying system is locked on the fixture 302. The structure of this adapting part 300 is simple, and clamping and disassembly are relatively convenient, especially considering that the adapting part 300 can be adjusted and replaced as needed at any time.

[0068] In this embodiment, the connecting rod 2033 can pass through the through hole on one side of the adapter seat 301 and be connected to the corresponding clamp block 3021, thereby fixing the clamp block 3021 on the side of the adapter seat 301 close to the adjustment part 200. At the same time, the adapter hand wheel 303 passes through the through hole on the other side of the adapter seat 301 and is connected to another clamp block 3022. In this way, by rotating the adapter hand wheel 303, the position of the clamp block 3022 relative to the other clamp block 3021 in the adapter seat 301 can be adjusted, thereby clamping conveying systems of different sizes.

[0069] The stabilizer of the embodiment of the present application can directly clamp the delivery system through the clamp 302, so that the clamp 302 has different positions and angles under the adjustment of the adjustment part 200, which can meet the positioning requirements of different positions and angles of the delivery system during surgery.

[0070] In another clamping method, such as Figure 8 and Fig. 9 As shown, the adapter part 300 may also optionally include a track module 304, and the track module 304 includes a linear guide 3041, a chuck 3042 and a mounting portion 3043; the linear guide 3041 is arranged on the mounting portion 3043; the chuck 3042 is slidably arranged on the linear guide 3041. At this time, the clamp 3042 is used to directly clamp the mounting portion 3043, so as to directly clamp the conveying system through the chuck 3042. After such arrangement, it is convenient to adjust the connection position according to the requirements of the conveying system to meet the positioning requirements of more positions and angles. However, it should be understood that if the track module 304 is not used, the clamp 3042 is directly used to clamp the conveying system, that is, the clamp 3042 can be selectively used to clamp the conveying system or the track module 304.

[0071] The number of the clamps 3042 is one or more. When the number of the clamps 3042 is multiple, the multiple clamps 3042 are arranged along the extension direction of the linear guide rail 3041. When multiple clamps 3042 are used, it is convenient to clamp the conveying system at more installation points.

[0072] Continue to see Fig. 9 In one embodiment, the track module 304 further includes a gear rack mechanism, which includes a knob 3044, a gear and a rack connected in sequence; the rack is arranged in parallel on the linear guide 3041; the knob 3044 is arranged on the mounting portion 3043; after the knob 3044 is rotated, the gear is driven to move on the rack, and then the gear drives the chuck 3042 to slide along the linear guide 3041. It should be further explained that Fig. 9The track module 304 shown is only an exemplary structure and does not constitute a limitation on the protection scope of the present application. For example, in other embodiments, the knob 3044 rotates to drive the gear to drive the rack to move, and then the rack drives the chuck 3042 to slide along the linear guide rail 3041.

[0073] Optionally, the mounting portion 3043 includes a cylinder (not marked) and a mounting bracket (not marked) connected to the cylinder. The cylinder is directly clamped by two clamping blocks 3021 and 3022 to fix the track module 304. The knob 3044, the linear guide 3041 and the rack and pinion mechanism are all directly mounted on the mounting bracket. In addition, there may be multiple structures of the chuck 3042, and at least one may be selected to perform. For example, in the exemplary embodiment described in the figure, the chuck 3042 is an openable and closable annular clamp, but it is not actually limited to this. In practice, the chuck 3042 can not only play the role of clamping the conveying system, but also has the function of controlling the conveying system to move forward or backward, that is, by sliding the chuck 3042 on the linear guide 3041, the position of the chuck 3042 is adjusted to achieve the purpose of delivering or extracting the conveying system into or out of the body.

[0074] Next, in conjunction with the preferred embodiment, the operation method of the stabilizer of the embodiment of the present application is further described. In actual use, the fixing seat 101 is first placed in a suitable position on the bed, and then the bed clamp adjustment hand wheel 104 is tightened to push the clamping plate 103 to fix the stabilizer on the bed; after being fixed on the bed, the adjustment hand wheel 2071 is loosened to allow the spherical joint on the adjustment part 200 to move freely, so that the adjustment part 200 becomes flexible, and it is convenient to adjust the adjustment part 200 to a suitable angle and position; after adjusting to a suitable position and angle, the adjustment hand wheel 2071 is tightened again to allow the push rod 2032 to lock the connection ball head 2021 through friction, that is, to lock the adjustment part 200, so that the adjustment part 200 becomes rigid, and the positioning and locking of the conveying system at the current position and angle are completed.

[0075] In summary, according to the technical solution provided in the embodiment of the present application, a stabilizer that can be easily adjusted is provided, which can meet the different positions and angles required by the delivery system during the operation, and make the angle and position of the delivery system in the heart valve interventional surgery more controllable and the positioning more accurate. In addition, the stabilizer of the present application can complete the adjustment of multiple angles and positions through an adjustment hand wheel 2071, which reduces the risk of inaccurate positioning during the operation and reduces the difficulty of adjustment. The stabilizer of the present application can be further configured with a track module 304, which can adjust the connection position according to the needs of the delivery system to meet the positioning needs of more positions and angles.

[0076] The above description is only a description of the preferred embodiment of the utility model, and is not any limitation to the scope of the utility model. Any changes and modifications made by ordinary technicians in the field of this application based on the above disclosure are within the protection scope of the technical solution of this application.

Claims

1. A stabilizer used in heart valve intervention surgery, characterized in that: It comprises a bed clamp part, an adjustment part and an adaptor part which are connected in sequence; the bed clamp part is used to be detachably connected to the bed body; the adaptor part is used to clamp the conveying system; The adjusting part comprises a fixing rod, a first spherical joint, a first adjusting mechanism, a rotation joint, a second adjusting mechanism and a second spherical joint which are connected in sequence; the bottom end of the fixing rod is connected to the bed clamp part; the first spherical joint is arranged at the top end of the fixing rod; the second adjusting mechanism is connected to the adapting part through the second spherical joint; The stabilizer also includes a joint locking portion connected to the rotation joint; The joint locking portion can synchronously actuate the first adjustment mechanism and the second adjustment mechanism so that the first adjustment mechanism and the second adjustment mechanism lock the first spherical joint and the second spherical joint respectively.

2. The stabilizer used in the heart valve intervention surgery according to claim 1, characterized in that: The first spherical joint and the second spherical joint both include a ball head seat and a connecting ball head arranged in the ball head seat, and the connecting ball head in the second spherical joint has a connecting rod extending out of the ball head seat, and the connecting rod is detachably connected to the adapter part.

3. The stabilizer used in the heart valve intervention surgery according to claim 2, characterized in that: The adapting part includes an adapting seat, a clamp and an adapting hand wheel; the clamp is arranged in the mounting cavity defined by the adapting seat and is used to directly or indirectly clamp the conveying system; The clamp comprises two clamping blocks arranged opposite to each other; the connecting rod is threadedly connected to the adapting seat and one of the clamping blocks; the adapting hand wheel is threadedly connected to the adapting seat and the other of the clamping blocks on the opposite side of the connecting rod; After the adapting hand wheel rotates, it drives the clamping block connected thereto to move away from or approach another clamping block.

4. The stabilizer used in the heart valve intervention surgery according to claim 3, characterized in that: The adapter part also includes a track module, which includes a linear guide rail, a chuck and a mounting portion; the linear guide rail is arranged on the mounting portion; the chuck is slidably arranged on the linear guide rail; the clamp is used to clamp the mounting portion and clamp the conveying system through the chuck.

5. The stabilizer used in the heart valve intervention surgery according to claim 4, characterized in that: The number of the chucks is one or more. When the number of the chucks is plural, the chucks are arranged along the extension direction of the linear guide rail.

6. The stabilizer used in the heart valve intervention surgery according to claim 4, characterized in that: The track module also includes a gear rack mechanism, which includes a knob, a gear and a rack connected in sequence; the rack is arranged in parallel on the linear guide; the knob is arranged on the mounting portion; after the knob is rotated, the gear is driven to move on the rack, and then the gear drives the chuck to slide along the linear guide.

7. The stabilizer used in heart valve intervention surgery according to claim 1, characterized in that: The bed clamp part includes a fixing seat, a clamping plate and a bed clamp adjusting hand wheel; The fixing seat includes a column, a fixing plate and a bottom plate; the fixing plate and the bottom plate are both connected to the column; the clamping plate is located between the fixing plate and the bottom plate; the clamping plate and the fixing plate are used to cooperate with each other to clamp and fix the bed body; the bed clamp adjusting handwheel is threadedly connected to the bottom plate; the bed clamp adjusting handwheel is also connected to the clamping plate via the bottom plate; after the bed clamp adjusting handwheel is rotated, the clamping plate is driven to move along the extension direction of the column to make the clamping plate move away from or close to the fixing plate.

8. The stabilizer used in the heart valve intervention surgery according to claim 7, characterized in that: The bed clamp part also includes two guide rods and two guide holes; the two guide rods are symmetrically arranged on the periphery of the bed clamp adjusting hand wheel; the two guide holes are arranged on the base plate and symmetrically arranged on the periphery of the bed clamp adjusting hand wheel; one end of the two guide rods is fixed to the clamping plate, and the other ends of the two guide rods are inserted into the two guide holes one by one.

9. The stabilizer used in heart valve intervention surgery according to claim 1, characterized in that: The first adjustment mechanism and the second adjustment mechanism each include an adjustment rod and a push rod disposed in the adjustment rod; the first spherical joint and the second spherical joint each include a ball head seat and a connecting ball head disposed in the ball head seat; one end of each of the adjustment rods is fixed to the corresponding ball head seat, and the other end of each of the adjustment rods is fixed to the rotation joint; The joint locking part includes an adjusting hand wheel and a motion conversion mechanism; the adjusting hand wheel is rotatably connected to the rotation joint; the motion conversion mechanism is arranged in the rotation joint and is respectively connected to the adjusting hand wheel and the push rod; One end of each of the push rods is connected to the motion conversion mechanism, and the other end of each of the push rods extends into the corresponding ball head seat and is aligned with the corresponding connecting ball head; The motion conversion mechanism is used to convert the rotational motion of the adjusting hand wheel into the linear motion of the pushing rod along the extending direction of the adjusting rod, and the extending direction of the adjusting rod is perpendicular to the axial direction of the adjusting hand wheel; After the adjusting hand wheel rotates, the motion conversion mechanism is driven to drive the pushing rod to move along the corresponding extending direction of the adjusting rod, so that the other end of the pushing rod is clamped on the corresponding connecting ball head.

10. The stabilizer used in the heart valve intervention surgery according to claim 9, characterized in that: The motion conversion mechanism includes a threaded slider and an adjusting slider; the threaded slider is threadedly matched with the adjusting hand wheel; the conical surface of the threaded slider is matched with the inclined surfaces of the two adjusting sliders; one end of each of the push rods is connected to a corresponding one of the adjusting sliders; After the adjusting hand wheel rotates, the threaded slider is driven to move along the axial direction of the adjusting hand wheel, so that the threaded slider drives the pushing rod to move along the corresponding extending direction of the adjusting rod through the adjusting slider.

11. The stabilizer used in the heart valve intervention surgery according to claim 9, characterized in that: The rotation joint includes an adjusting upper cover and an adjusting lower cover; the adjusting upper cover and the adjusting lower cover are connected by the adjusting hand wheel; the adjusting upper cover and the adjusting lower cover can rotate relative to each other; one of the adjusting upper cover and the adjusting lower cover is fixed to one end of the adjusting rod in the first adjusting mechanism, and the other of the adjusting upper cover and the adjusting lower cover is fixed to one end of the adjusting rod in the second adjusting mechanism; the motion conversion mechanism is movably arranged in the internal space enclosed by the adjusting upper cover and the adjusting lower cover.

12. The stabilizer used in the heart valve intervention surgery according to claim 9, characterized in that: A guide structure is provided inside the rotation joint, and the guide structure cooperates with the motion conversion mechanism. Used to limit the movement direction of the motion conversion mechanism.

Images