Connecting structure and catheter adapter
By designing a connection structure and catheter adapter for vascular interventional robots, the fatigue and accuracy problems caused by long-term operation of surgeons in traditional vascular interventional surgery are solved, and the flexible and precise operation of remote control instruments is achieved.
Patent Information
- Application Number
- CN202510133902.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2025-03-28
AI Technical Summary
In traditional vascular interventional surgery, the surgeon needs to operate the instrument for a long time, resulting in ray exposure and fatigue. The accuracy and safety of the surgery are difficult to guarantee. A remote manipulation or AI-assisted vascular interventional robot is urgently needed to solve these problems.
A connecting structure and a catheter adapter are designed to realize linear movement and synchronous rotation of the catheter support through the coordination of the rotating support and the connecting body, ensuring that the coupling structure can rotate with the catheter support when the push button moves and rotates.
The function of remotely controlling the instrument push button of the vascular intervention robot is realized, which improves the flexibility and accuracy of the operation and reduces the risk of fatigue and ray exposure of the surgeon.
Smart Images
Figure CN119700309A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of medical devices, and in particular to a connection structure and a catheter adapter. Background Art
[0002] Traditional vascular interventional surgery requires the surgeon to operate instruments in the operating room for a long time to complete the interventional surgical treatment of the patient. Therefore, the surgeon will be exposed to radiation for a long time, causing harm to the surgeon's body. In addition, vascular interventional surgery relies heavily on the surgeon's experience, and usually has a long learning curve. It requires frequent and repeated delivery and adjustment of the instruments to achieve better treatment effects. However, this frequent and repeated instrument delivery and adjustment operation makes the surgeon very tired, and the accuracy of the surgical operation often fluctuates greatly. In addition, the operation is usually very long, which is not very beneficial to both the surgeon and the patient. In severe cases, it will cause many adverse events caused by instrument operation. Therefore, there is an urgent need for a vascular interventional robot based on remote control or even combined with AI (artificial intelligence) assistance to solve the above problems.
[0003] The vascular intervention robot usually includes a remote control console, a robotic arm, an active power transmission cabin, and several passive adapters that cooperate with the instrument to drive the remote operation of the instrument. Conventional vascular intervention surgery often involves pushing and pulling handles and buttons to achieve certain functions of the instrument, such as pushing and pulling the push button to achieve stent size adjustment, stent release and recovery, catheter delivery and withdrawal, ablation catheter electrode ring diameter size adjustment, balloon catheter delivery and withdrawal, catheter head end bending, and other instrument functions that need to be met. Therefore, the push button can be remotely pushed and pulled by a remote control drive device. Then, the coupling structure that needs to be coupled with the push button needs to meet the requirements of moving and rotating with the push button. It is urgent to design a connection structure for the transition drive device and the coupling structure, so that the vascular intervention robot can remotely control the instrument push button and complete certain surgical operations of the instrument. Summary of the invention
[0004] Based on this, the embodiment of the present application provides a connection structure and a catheter adapter. Through the cooperation between the rotating support and the connecting body, the rotating support can achieve the purpose of synchronous rotation with the catheter support while achieving linear movement relative to the catheter support.
[0005] In a first aspect, an embodiment of the present application provides a connection structure for supporting a catheter supporter, wherein the catheter supporter is configured with a conveying groove; the connection structure comprises:
[0006] A rotating support member, which is constructed in an annular shape, wherein the inner wall surface of the rotating support member is used to abut against the catheter supporter, and the rotating support member is configured with a first missing portion so that the conveying groove is exposed;
[0007] A connecting body, comprising a transmission end and a butt end, wherein the transmission end is used to connect with the driving mechanism, and the butt end is adapted to the shape of the rotating support member and is used to buckle with the rotating support member; the butt end is also configured with a second missing portion to expose the conveying trough;
[0008] The sealing cover is adapted to the shape of the rotating support member, and the sealing cover is used to be connected to the rotating support member so that the rotating support member is rotatably connected to the connecting body.
[0009] In one of the embodiments, a mounting hole is configured at the butt end of the connecting body, and the mounting hole is used to accommodate a portion of the rotating support member so that the inner wall surface of the rotating support member is located in the mounting hole.
[0010] In one embodiment, the connecting body includes a connecting plate and a clamping plate, wherein the clamping plate is disposed on one side of the connecting plate and arranged around the mounting hole;
[0011] A clamping groove is formed between the clamping plate and the connecting plate.
[0012] In one of the embodiments, the rotating support member includes an annular support block, at least one end face of which is configured with an annular docking groove, the annular docking groove is used to accommodate the clamping plate, and the annular support block is fixed to the annular support block by the sealing cover to achieve a rotational connection between the annular support block and the connecting body.
[0013] In one embodiment, the sealing cover is fixedly connected to a side of the annular support block facing the connecting plate;
[0014] At least a portion of the cover is located in the clamping groove.
[0015] In one embodiment, the first missing portion is an open notch formed on the outer periphery of the annular support block;
[0016] The second missing portion is an avoidance notch formed on one side of the connecting plate and the clamping plate, and the avoidance notch is communicated with the mounting hole.
[0017] In one of the embodiments, the inner wall surface of the annular support block is provided with a plurality of support protrusions, the plurality of support protrusions are distributed at intervals along the circumference of the annular support block, and the support protrusions are used to abut against the outer wall surface of the catheter supporter.
[0018] In one of the embodiments, the inner wall surface of the annular support block is provided with a bearing platform, and the bearing platform is arranged opposite to the open notch, and the bearing platform is used to adapt and abut against the outer wall surface of the catheter supporter so as to rotate synchronously with the catheter supporter.
[0019] In one embodiment, the annular body angle of the annular support block is greater than 180° and less than 360°;
[0020] And / or, the ring angle of the clamping plate is greater than 180° and less than 360°.
[0021] A second aspect of an embodiment of the present application provides a catheter adapter, comprising the connection structure described in the above embodiment; and
[0022] Support seat;
[0023] The catheter supporter is arranged on the support seat, and the catheter supporter includes a rotating shaft, which is penetrated in the rotating support member and rotates synchronously with the rotating support plate.
[0024] In one embodiment, the support seat includes at least one guide shaft, and the transmission end of the connecting body is passed through the guide shaft;
[0025] The catheter support is constructed with a receiving groove, a catheter delivery groove and a guide wire delivery groove which are interconnected, and the extension direction of the catheter delivery groove and the guide wire delivery groove is consistent with the extension direction of the guide shaft;
[0026] The first missing portion and the second missing portion are both used to expose the catheter delivery groove or the guide wire delivery groove.
[0027] The above-mentioned connection structure and catheter adapter provide a connection body, and connect the transmission end of the connection body to the driving mechanism to drive the connection body to move linearly. The butt end of the connection body is designed with an annular structure to facilitate the engagement with the annular rotating support. In order to ensure the effective connection between the two, a cover is connected to the rotating support so that the rotating support is rotatably connected to the connection body; the inner wall surface of the rotating support is used to abut against the catheter support. The rotating support provided in this example can achieve the purpose of synchronous rotation of the rotating support and the catheter support while achieving linear movement relative to the catheter support through the movement of the connection body. In addition, the setting of the first missing part on the rotating support and the second missing part on the connection body can expose the conveying groove, so as to provide a channel for the subsequent catheter or guidewire to be placed in the catheter support to avoid structural interference. The connection structure provided in this example can also provide stable support for the catheter support. The rotational connection between the rotating support and the connection body provides a basis for the entire catheter support to achieve rotation operation, making the operation of the instrument more flexible. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 This is a schematic diagram of the overall structure of a catheter adapter provided according to some embodiments of the present application.
[0029] Figure 2It is a schematic diagram of the overall structure of a catheter support provided according to some embodiments of the present application.
[0030] Figure 3 This is a schematic diagram of the structure of a control handle provided according to some embodiments of the present application.
[0031] Figure 4 It is a partial top view structural schematic diagram of a catheter adapter provided according to some embodiments of the present application.
[0032] Figure 5 It is a schematic diagram of a partially enlarged structure of a catheter adapter provided according to some embodiments of the present application.
[0033] Figure 6 This is a structural schematic diagram of a connection structure provided according to some embodiments of the present application.
[0034] Figure 7 This is a schematic diagram of the structure of a connection body provided according to some embodiments of the present application.
[0035] Figure 8 This is a schematic structural diagram of a rotating support member provided according to some embodiments of the present application.
[0036] Fig. 9 This is a schematic diagram of the structure of a cover provided according to some embodiments of the present application.
[0037] Figure Number:
[0038] 10. Control handle; 11. Push button;
[0039] 20. catheter support; 25. rotating shaft; 21. receiving groove; 23. catheter delivery groove; 24. guide wire delivery groove;
[0040] 30. Support seat; 31. Guide shaft;
[0041] 220, transmission assembly; 221, rotating member; 222, moving member; 230, pulling assembly; 240, coupling assembly; 232, pulling rod;
[0042] 700, connection structure; 710, rotating support member; 711, first missing portion; 712, annular support block; 713, annular docking groove; 714, supporting protrusion; 715, bearing platform; 720, connecting body; 721, transmission end; 722, docking end; 723, second missing portion; 724, mounting hole; 725, connecting plate; 726, snap-in plate; 727, snap-in groove; 730, sealing cover. DETAILED DESCRIPTION
[0043] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application 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 present application. However, the present application 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 present application, so the present application is not limited by the specific embodiments disclosed below.
[0044] In the description of the present application, it should be understood that if 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", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply 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 on the present application.
[0045] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0046] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0047] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may 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 being "below", "below" and "below" the second feature may 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.
[0048] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.
[0049] As described in the background technology section, when a push button is driven by a driving device to move, for example, the coupling structure coupled with the push button needs to move or rotate with the push button, so the structure connecting the driving device and the coupling structure is particularly important. The main reason for the existence of the above-mentioned problem is that the catheter support for loading functional parts such as a control handle, a catheter, and a guide wire can be rotated under the drive of a certain driving device, so as to realize the synchronous rotation of the functional parts such as the control handle, the catheter, and the guide wire. In the process of rotation, the push button and the bending wheel set on the control handle will also rotate with it, and the driving devices (to be precise, the coupling structure connected to the driving device) used to control the movement of the push button and the rotation of the bending wheel need to rotate with it, and the position of the transmission mechanism in the driving device is relatively fixed, and it is difficult to rotate with it. Therefore, it is urgent to provide a connection structure that can connect the transmission mechanism and the coupling structure, so that the coupling structure can be effectively coupled with the push button and the bending wheel, and the coupling structure can also be synchronized with the catheter support. Rotation.
[0050] Based on the above-mentioned problems, the embodiments of the present application provide a connection structure and a catheter adapter, which can provide stable support for the catheter support group. The rotational connection between the rotating support member and the connecting body provides a basis for the rotation operation of the entire catheter support, making the operation of the instrument more flexible; in addition, the design of the first missing part and the second missing part ensures that the delivery groove is exposed, providing a channel for subsequent catheter and guidewire delivery operations, avoiding structural interference.
[0051] See also Figures 1 to 6 As shown, Figure 1This is a schematic diagram of the overall structure of a catheter adapter provided according to some embodiments of the present application. Figure 2 It is a schematic diagram of the overall structure of a catheter support provided according to some embodiments of the present application. Figure 3 This is a schematic diagram of the structure of a control handle provided according to some embodiments of the present application. Figure 4 It is a partial top view structural schematic diagram of a catheter adapter provided according to some embodiments of the present application. Figure 5 It is a schematic diagram of a partially enlarged structure of a catheter adapter provided according to some embodiments of the present application. Figure 6 Schematic diagram of a connection structure provided according to some embodiments of the present application. A connection structure 700 provided in one embodiment of the present application is used to support a catheter supporter 20, and the catheter supporter 20 is configured with a conveying groove; the connection structure 700 may include a rotating support member 710, a connection body 720 and a cover 730.
[0052] The rotating support 710 is constructed in an annular shape, and the inner wall surface of the rotating support 710 is used to abut against the catheter support 20. The rotating support 710 is constructed with a first missing portion 711 to expose the conveying groove; the connecting body 720 includes a transmission end 721 and a docking end 722. The transmission end 721 is used to connect with the driving mechanism, and the docking end 722 is adapted in shape to the rotating support 710 and is used to snap together with the rotating support 710; the docking end 722 is also constructed with a second missing portion 723 to expose the conveying groove; the cover 730 is adapted in shape to the rotating support 710, and the cover 730 is used to connect with the rotating support 710 so that the rotating support 710 is rotatably connected to the connecting body 720.
[0053] It is understandable that, in order to clearly understand the application scenario of the connection structure 700 in this example, the surgical instrument drive device coupled to the push button 11 of the control handle 10 will be introduced first. The drive device can drive the push button 11 to move, so as to realize the distal end of the instrument, such as stent size adjustment, stent release and recovery, catheter delivery and withdrawal, ablation catheter electrode ring diameter size adjustment, balloon catheter delivery and withdrawal, catheter head end bending, and other instrument functions that need to be met. Specifically, before using the surgical instrument drive device, the doctor needs to hold the control handle 10 to deliver instruments such as guide wires and catheters to the vicinity of the lesion of the human body, and then place the control handle 10 on an operating table near the human body (which can be the support seat 30 described below), and ensure that the components (push button 11, bending wheel, etc.) on the control handle 10 are coupled with the external drive device. Finally, the surgical instrument drive device is remotely controlled by the surgical robot to achieve remote control of the push button 11.
[0054] More specifically, the surgical instrument drive device can be arranged on a transmission cabin supported by a mechanical arm, and a power cabin can be arranged at one end of the transmission cabin, which mainly provides power for the surgical instrument drive device to indirectly drive the push button 11 coupled thereto to move. Among them, a transmission assembly 220 for outputting torque can be arranged on the transmission cabin, for example, the transmission assembly 220 can be used as a power input coupling, and the power input coupling can receive the power provided by the power cabin through the transmission assembly 220 (such as a gear structure, a synchronous belt, a lead screw nut and a slide rail, a gear rack, etc.) in the transmission cabin, thereby providing rotational power for the rotating member 221 in the transmission assembly 220.
[0055] Since the setting of the entire surgical instrument drive device needs to consider the setting position of the transmission cabin (power output port) and the setting position of the control handle 10 (including the orientation of the push button 11, the bending wheel and other components thereon), in order to reduce the difficulty of adjusting the positions of the transmission cabin, the control handle 10 and other components, and reduce the probability of position conflicts between the components, this example provides a transmission assembly 220, a pulling assembly 230 and a coupling assembly 240, which can not only realize the effective transmission of power to the push button 11, but also make the layout of the entire surgical instrument drive device more reasonable to save space.
[0056] The transmission assembly 220 can be arranged on one side of the support seat 30, and its main function is to convert the torque transmitted from the power compartment to the transmission assembly 220 into linear motion, and then drive the push button 11 to move. The specific process of driving the push button 11 to move can be that the transmission assembly 220 drives the rotating member 221 in the transmission assembly 220 to rotate, the rotating assembly drives the moving member 222 to move linearly, and the moving member 222 drives the pulling assembly 230 connected thereto to move linearly. At the same time, the coupling assembly 240 connected to the pulling assembly 230 is engaged with the push button 11 of the control handle 10, and will drive the push button 11 to move under the drive of the pulling assembly 230, so as to achieve the purpose of completing the function operation of the instrument by remotely controlling the push button 11.
[0057] The overall workflow of the surgical instrument driving device can be that the doctor places the handheld control handle 10 on the support seat 30, and makes the coupling component 240 in the surgical instrument driving device located outside the support seat 30 snap on the push button 11 of the control handle 10, and locks the support seat 30 to prevent the control handle 10 from falling out of the support seat 30. Then, the doctor issues a command on the remote control console, the power cabin starts and transmits power to the transmission component 220 through the transmission cabin, the transmission component 220 drives the rotating member 221 of the transmission component 220 to rotate, the rotational motion of the rotating member 221 is converted into linear motion by the moving member 222, the moving member 222 drives the pulling component 230 to move, the pulling component 230 then pulls or pushes the coupling component 240, and the coupling component 240 drives the push button 11 of the control handle 10 to move, thereby realizing various functional operations of the instrument, such as stent size adjustment, stent release and recovery, catheter delivery and withdrawal, etc.
[0058] Among them, the pulling assembly 230 includes a connecting structure 700 and a pulling rod 232 in this example. The connecting structure 700 is fixedly connected to the moving member 222. One end of the pulling rod 232 is connected to the connecting structure 700, and the other end is connected to the coupling assembly 240. The pulling rod 232 is used to drive the push button 11 to move along the second direction.
[0059] Specifically, the design of the connecting structure 700 can, on the one hand, avoid the control handle 10 so that the setting positions of the moving part 222 and the pulling rod 232 are more reasonable. On the other hand, the connecting structure 700 can provide support for the rotation of the control handle 10, that is, the pulling rod 232, the coupling assembly 240, etc. are separated from the transmission assembly 220, the power mechanism, etc. at the other end of the connecting structure 700.
[0060] In order to more clearly understand the purpose of setting the connection structure 700, it is necessary to introduce the structure of the catheter support 20. The catheter support 20 is set on the support seat 30 described below, and can be rotated under the drive of other driving devices, so as to achieve the purpose of driving the control handle 10, catheter, guide wire, etc. contained therein to rotate. When the catheter support 20 rotates, the power mechanism and the transmission assembly 220 in the above example will not move relative to the support seat 30, and the pull rod 232 and the coupling assembly 240 need to rotate synchronously with the catheter support 20 and the control handle 10. Then, the connection structure 700 connecting the moving member 222 and the pull rod 232 can ensure that the pull rod 232 and the coupling assembly 240 can rotate synchronously with the catheter support 20 on the basis of providing the synchronization of the movement of the moving member 222 and the pull rod 232 (specifically referring to the movement along the axial direction of the catheter). It can be seen from this that the setting of the connection structure 700 in this example can ensure the synchronization and continuity of the transmission assembly 220 and the coupling assembly 240 during the movement process.
[0061] In this example, the transmission end 721 of the connection body 720 is fixed to the moving member 222 and can move linearly with the moving member 222. The docking end 722 of the connection body 720 can be set to a C shape, or set to an open ring structure, a missing ring structure, etc., so that the catheter support 20 can pass through the docking end 722 of the connection body 720. The second missing portion 723 formed at the docking end 722 can expose the conveying groove in the catheter support 20, so that the catheter, guide wire, etc. can be placed or taken out of the catheter support 20 without interfering with the connection structure 700.
[0062] The rotating support 710 is arranged in an annular shape, and is adapted to the shape of the docking end 722 of the connecting body 720, so as to facilitate the docking and buckling of the two. Since the rotating support 710 is also provided with a first missing portion 711 (which can be an opening formed by cutting off a part of the circumference of the annular structure) for exposing the conveying groove, the annular rotating support 710 should specifically be an open ring structure or a missing ring structure. Since the connecting body 720 is fixedly connected to the moving member 222, the position of the connecting body 720 relative to the support seat 30 remains unchanged (specifically, it will not rotate), and it is necessary to make the inner wall surface of the rotating support 710 abut against the catheter support 20, and the above-mentioned pulling rod 232 is also fixed on one side of the rotating support 710, so as to achieve the purpose of the rotating support 710 driving the pulling rod 232 to rotate together with the catheter support 20.
[0063] In addition, in order to achieve effective engagement between the rotating support member 710 and the connecting body 720, that is, to achieve unlimited rotation of the rotating support member 710 on the connecting body 720 while ensuring that the two are not easily separated, this example is connected to the rotating support member 710 through the cover 730, thereby achieving the purpose of rotatably setting the rotating support member 710 on the connecting body 720.
[0064] It should be noted that the material of the inner wall surface of the rotating support 710 can be selected from self-lubricating materials such as POM (polyoxymethylene) and PEEK (polyetheretherketone) to reduce the friction between the catheter support 20 and the rotating support 710, so as to ensure the sliding smoothness when the rotating support 710 and the catheter support 20 move relative to each other.
[0065] In the present application, a connecting body 720 is provided, and the transmission end 721 of the connecting body 720 is connected to the driving mechanism to drive the connecting body 720 to move linearly. The docking end 722 of the connecting body 720 is designed with an annular structure to facilitate the buckling with the annular rotating support 710. To ensure the effective connection between the two, a cover 730 is connected to the rotating support 710 so that the rotating support 710 is rotatably connected to the connecting body 720; the inner wall surface of the rotating support 710 is used to abut against the catheter support 20. The rotating support 710 provided in this example can realize the purpose of synchronous rotation of the rotating support 710 and the catheter support 20 while realizing the linear movement relative to the catheter support 20 through the movement of the connecting body 720. In addition, the first missing part 711 on the rotating support 710 and the second missing part 723 on the connecting body 720 can expose the conveying groove, so as to provide a channel for the subsequent catheter or guidewire to be placed in the catheter support 20 to avoid structural interference. The connection structure 700 provided in this example can also provide stable support for the catheter support 20. The rotational connection between the rotation support 710 and the connection body 720 provides a basis for the entire catheter support 20 to achieve rotation operation, making the operation of the device more flexible.
[0066] Next, we will combine the attached Figure 1 -Attached Fig. 9 The specific structure of the connection structure 700 provided in the embodiment of the present application is introduced. Figure 7 This is a schematic diagram of the structure of a connection body provided according to some embodiments of the present application. Figure 8 This is a schematic structural diagram of a rotating support member provided according to some embodiments of the present application. Fig. 9 This is a schematic diagram of the structure of a cover provided according to some embodiments of the present application.
[0067] like Figure 7 As shown, in some embodiments, the docking end 722 of the connecting body 720 is configured with a mounting hole 724 , and the mounting hole 724 is used to accommodate part of the rotating support member 710 so that the inner wall surface of the rotating support member 710 is located in the mounting hole 724 .
[0068] Specifically, the installation hole 724 is mainly used to allow the catheter support 20 to pass through. Of course, in order to allow the rotating support 710 to rotate together with the catheter support 20, it is necessary to make the catheter support 20 abut against the inner wall surface of the rotating support 710. Therefore, in this example, the inner wall surface of the rotating support 710 is located in the installation hole 724. For example, the inner wall surface (arc surface) of the rotating support 710 slightly protrudes from the wall surface of the installation hole 724, so that the catheter support 20 passing through the installation hole 724 first contacts the inner wall surface of the rotating support 710, avoiding the problem of rotation obstruction caused by contact with the connecting body 720 at the installation hole 724.
[0069] like Figure 7 As shown, in some embodiments, the connecting body 720 includes a connecting plate 725 and a snap-in plate 726 . The snap-in plate 726 is disposed on one side of the connecting plate 725 and is arranged around the mounting hole 724 . A snap-in groove 727 is formed between the snap-in plate 726 and the connecting plate 725 .
[0070] Specifically, the mounting hole 724 is set through the plate surface of the connecting plate 725, and a clamping plate 726 is set on the surface of the connecting plate 725 and near the mounting hole 724. The shape of the clamping plate 726 can be an open ring structure or a missing ring structure. For example, the cross-sectional shape of the clamping plate 726 is L-shaped, and the opening of the clamping groove 727 formed between the clamping plate 726 and the connecting plate 725 is away from the mounting hole 724. The clamping groove 727 is mainly used to accommodate the cover 730, so that the rotating support 710 is firmly connected to the connecting body 720 through the fixed connection between the cover 730 and the rotating support 710.
[0071] It should be noted that the connecting plate 725 and the clamping plate 726 can be welded, riveted or integrally formed, and no limitation is made here. The setting of the clamping plate 726 in this example can limit the installation position of the rotating support 710, and can enhance the constraint and positioning of the rotating support 710 by the connecting body 720, so that the rotating support 710 will not be axially displaced during the rotation process, ensuring the stability and reliability of the rotation movement, and helping to achieve more precise instrument operation.
[0072] like Figure 8 As shown, in some embodiments, the rotating support member 710 includes an annular support block 712, and at least one end face of the annular support block 712 is configured with an annular docking groove 713, and the annular docking groove 713 is used to accommodate the clamping plate 726, and the annular support block 712 is fixed by the sealing cover 730 to realize the rotational connection between the annular support block 712 and the connecting body 720.
[0073] Specifically, the cross-sectional shape of the annular support block 712 may be U-shaped, which may be formed by casting or forging, etc. The size and shape of the annular docking groove 713 may be determined according to the size of the clamping plate 726 to ensure the dimensional accuracy of the annular docking groove 713, thereby ensuring that the clamping plate 726 can be accurately installed therein, and at the same time, it is also necessary to ensure that the annular support block 712 can closely follow the connection body 720 for linear motion, so as to avoid the problem that when the connection body 720 moves, the annular support block 712 needs to fill the gap between the two before it can follow the movement.
[0074] Then, the cover 730 and the annular support block 712 can be connected by bolt connection, snap connection, etc., so as to enhance the connection tightness and rotation flexibility between the annular support block 712 and the connection body 720, and at the same time, avoid the problem of the annular support block 712 being separated from the connection body 720 during rotation. This connection method makes the rotation of the rotating support member 710 smoother and more stable, and reduces the decrease in accuracy caused by rotation friction or looseness.
[0075] It should be noted that, in order to reduce the rotational friction between the annular support block 712 and the clamping plate 726, a self-lubricating material such as POM (polyoxymethylene) and PEEK (polyetheretherketone) can be selected, but there is no specific limitation.
[0076] like Figure 6 and Fig. 9 As shown, in some embodiments, the cover 730 is fixedly connected to the side of the annular support block 712 facing the connecting plate 725 ; at least a portion of the cover 730 is located in the snap-fit groove 727 .
[0077] Specifically, the opening of the annular support block 712 with a U-shaped cross section faces the connecting plate 725 and is buckled on the clamping plate 726 with an L-shaped cross section. The cover 730 can be partially placed in the clamping groove 727 and fixedly connected to the side of the annular support block 712 facing the connecting plate 725, thereby achieving the purpose of rotating the annular support plate on the connecting body 720. The cover 730 provided in this example can not only play a fixing role, but also will not interfere with other structures, further enhancing the integrity and stability of the connecting structure 700.
[0078] like Figure 7 and Figure 8 As shown, in some embodiments, the first missing portion 711 is an open gap formed on the outer periphery of the annular support block 712; the second missing portion 723 is an avoidance gap formed on one side of the connecting plate 725 and the clamping plate 726, and the avoidance gap is connected to the mounting hole 724.
[0079] Specifically, for the first missing portion 711, when manufacturing the annular support block 712, an open gap can be formed on its periphery by mechanical processing, and the shape and size of the open gap should be determined according to the position and size of the conveying groove on the catheter support 20 to ensure that the conveying groove can be accurately exposed. For the second missing portion 723, when manufacturing the connecting plate 725 and the clamping plate 726, an avoidance gap is machined on one side of the two, and the avoidance gap is connected to the mounting hole 724. The avoidance gap can be accurately machined by a milling machine or electric spark machining to ensure that it corresponds to the position of the conveying groove to expose the conveying groove.
[0080] In the initial state, that is, when the control handle 10, the catheter and the guidewire are placed on the catheter support 20, the open gap and the avoidance gap overlap to jointly expose the delivery groove on the catheter support 20, so that the catheter and the guidewire can be placed on the catheter support 20 smoothly.
[0081] In this example, the precise design of the first missing portion 711 and the second missing portion 723 ensures that the delivery slot can be fully exposed, avoiding structural obstruction, improving the convenience and fluency of the doctor's operation, and ensuring the compactness and simplicity of the structure.
[0082] like Figure 8 As shown, in some embodiments, the inner wall surface of the annular support block 712 is provided with a plurality of support protrusions 714 , and the plurality of support protrusions 714 are distributed at intervals along the circumference of the annular support block 712 , and the support protrusions 714 are used to abut against the outer wall surface of the catheter supporter 20 .
[0083] Specifically, the number, size and distribution position of the support protrusions 714 can be reasonably determined according to the size of the annular support block 712 and the catheter supporter 20, and the multiple support protrusions 714 can be evenly distributed around the circumference. During processing, it is necessary to ensure that the height of the support protrusions 714 is consistent and the surface is smooth. For example, the support protrusions 714 can be formed of a self-lubricating material. While ensuring that the multiple support protrusions 714 are in good contact with the outer wall surface of the catheter supporter 20, it is also necessary to ensure the smoothness of the support protrusions 714 for the relative linear motion of the catheter supporter 20.
[0084] like Figure 8 As shown, in some embodiments, the inner wall surface of the annular support block 712 is provided with a bearing platform 715, and the bearing platform 715 is arranged opposite to the open gap. The bearing platform 715 is used to adapt and abut against the outer wall surface of the catheter support 20 to rotate synchronously with the catheter support 20.
[0085] Specifically, the bearing platform 715 can be set as a plane, and correspondingly, a plane is also set on one side of the catheter support 20 corresponding to the bearing platform 715, and the catheter support 20 can be adapted and inserted into the annular support block 712 through the mutual contact of the two planes, so as to realize the synchronous rotation of the two. In addition, the setting of the bearing platform 715 can withstand a certain axial force to enhance the stability of the entire connection structure 700 in the axial direction.
[0086] In some embodiments, the annular body angle of the annular support block is greater than 180° and less than 360°. Specifically, due to the presence of the first missing portion 711, the operational inconvenience caused by the complete closure of the annular support block is avoided, that is, the annular body angle of the annular support block needs to be less than 360°. If the annular body angle of the annular support block is set to 180° or less than 180°, there is a risk that the annular support block is easily disengaged from the connecting body 720. For example, the annular body angle of the annular support block is 270°.
[0087] Similarly, in one example, the ring angle of the clamping plate 726 is greater than 180° and less than 360°. Due to the existence of the second missing portion 723, that is, the ring angle of the clamping plate 726 is less than 360°, which avoids the operational inconvenience caused by the complete closure of the connecting body 720. If the ring angle of the annular support block is set to less than 180°, it is easy to cause the annular support block to escape from the connecting body 720. For example, the ring angle of the clamping plate 726 is 270°.
[0088] Based on the same inventive concept, the present application embodiment also provides a catheter adapter, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the catheter adapter includes the connection structure 700, the support seat 30 and the catheter supporter 20 in the above embodiment. The catheter supporter 20 is arranged on the support seat 30, and the catheter supporter 20 includes a rotating shaft 25, which is passed through the rotating support member 710 and rotates synchronously with the rotating support plate.
[0089] It can be understood that the catheter support 20 is movably arranged on the support seat 30, and is mainly used to realize the loading and stabilization of the ablation catheter. It is constructed with a control handle 10 accommodating groove 21, a bending wheel loading groove, a catheter delivery groove 23 and a guide wire delivery groove 24. Moreover, in order to ensure the stability of the control handle 10 placed on the catheter support 20, a fixed lock is also provided on the catheter support 20. The fixed lock can be set on one side of the accommodating groove 21. When the operator fits the control handle 10 into the accommodating groove 21, the control handle 10 can be locked by fastening the fixed lock, thereby ensuring the stability of the ablation catheter after loading and avoiding the position displacement of the ablation catheter during the surgical operation.
[0090] The ablation catheter is placed in the delivery groove of the rotating shaft 25, and the rotating shaft 25 is connected to the support seat 30, and the ablation catheter is driven to rotate by the rotation of the rotating shaft 25. The delivery groove in this example has a certain depth, so that the ablation catheter is restricted by the groove wall of the delivery groove to prevent the ablation catheter from falling out of the delivery groove during the operation, thereby improving the accuracy of the surgical operation and reducing the possible deviation and shaking of the ablation catheter during the delivery and rotation process.
[0091] like Figure 2 and Figure 4 As shown, in some embodiments, the support seat 30 includes at least one guide shaft 31, and the transmission end 721 of the connecting body 720 is passed through the guide shaft 31; the catheter support 20 is constructed with a receiving groove 21, a catheter delivery groove 23 and a guide wire delivery groove 24 that are interconnected, and the extension direction of the catheter delivery groove 23 and the guide wire delivery groove 24 is consistent with the extension direction of the guide shaft 31; the first missing portion 711 and the second missing portion 723 are both used to expose the catheter delivery groove 23 or the guide wire delivery groove 24.
[0092] Specifically, the transmission end 721 of the connecting body 720 is provided with a through hole, which can be slidably matched with the guide shaft 31 to ensure that the transmission end 721 can slide and rotate smoothly on the guide shaft 31.
[0093] In addition, the catheter support 20 in this example is long and extends along the axial direction of the catheter. The catheter delivery groove 23, the receiving groove 21 and the guide wire delivery groove 24 are arranged in sequence from the distal end (away from the operator) to the proximal end (close to the operator) of the catheter support 20.
[0094] In this example, the setting of the guide shaft 31 can provide guidance and support for the transmission end 721 of the connecting body 720, so that the connecting body 720 is more stable during the movement, ensuring the accuracy of power transmission.
[0095] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0096] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.
Claims
1. A connection structure, characterized in that: Used to support a catheter supporter, the catheter supporter is configured with a conveying groove; the connecting structure includes: A rotating support member, which is constructed in an annular shape, wherein the inner wall surface of the rotating support member is used to abut against the catheter supporter, and the rotating support member is configured with a first missing portion so that the conveying groove is exposed; A connecting body, comprising a transmission end and a butt end, wherein the transmission end is used to connect with the driving mechanism, and the butt end is adapted to the shape of the rotating support member and is used to buckle with the rotating support member; the butt end is also configured with a second missing portion to expose the conveying trough; The sealing cover is adapted to the shape of the rotating support member, and the sealing cover is used to be connected to the rotating support member so that the rotating support member is rotatably connected to the connecting body.
2. The connection structure according to claim 1, characterized in that: The butt end of the connecting body is configured with a mounting hole, and the mounting hole is used to accommodate a portion of the rotating support member so that the inner wall surface of the rotating support member is located in the mounting hole.
3. The connection structure according to claim 2, characterized in that: The connecting body comprises a connecting plate and a clamping plate, wherein the clamping plate is arranged on one side of the connecting plate and is arranged around the mounting hole; A clamping groove is formed between the clamping plate and the connecting plate.
4. The connection structure according to claim 3, characterized in that: The rotating support member includes an annular support block, at least one end face of which is configured with an annular docking groove, the annular docking groove is used to accommodate the clamping plate, and the annular support block is fixed with the sealing cover to realize the rotational connection between the annular support block and the connecting body.
5. The connection structure according to claim 4, characterized in that: The sealing cover is fixedly connected to a side of the annular support block facing the connecting plate; At least a portion of the cover is located in the clamping groove.
6. The connection structure according to claim 4 or 5, characterized in that: The first missing portion is an open notch formed on the outer periphery of the annular support block; The second missing portion is an avoidance notch formed on one side of the connecting plate and the clamping plate, and the avoidance notch is communicated with the mounting hole.
7. The connection structure according to claim 4 or 5, characterized in that: The inner wall surface of the annular support block is provided with a plurality of support protrusions, the plurality of support protrusions are distributed at intervals along the circumference of the annular support block, and the support protrusions are used to abut against the outer wall surface of the catheter supporter.
8. The connection structure according to claim 6, characterized in that: The inner wall surface of the annular support block is provided with a bearing platform, and the bearing platform is arranged opposite to the open notch. The bearing platform is used to adapt and abut against the outer wall surface of the catheter supporter so as to rotate synchronously with the catheter supporter.
9. The connection structure according to claim 4 or 5, characterized in that: The annular body angle of the annular support block is greater than 180° and less than 360°; And / or, the ring angle of the clamping plate is greater than 180° and less than 360°.
10. A catheter adapter, characterized in that: A connection structure comprising any one of claims 1 to 9; and Support seat; The catheter supporter is arranged on the support seat, and the catheter supporter includes a rotating shaft, which is penetrated in the rotating support member and rotates synchronously with the rotating support member.
11. The catheter adapter according to claim 10, characterized in that The support seat includes at least one guide shaft, and the transmission end of the connecting body is passed through the guide shaft; The catheter support is constructed with a receiving groove, a catheter delivery groove and a guide wire delivery groove which are interconnected, and the extension direction of the catheter delivery groove and the guide wire delivery groove is consistent with the extension direction of the guide shaft; The first missing portion and the second missing portion are both used to expose the catheter delivery groove or the guide wire delivery groove.