A tensioning guide wire or catheter securement transfer device

Abstract

The utility model relates to medical instrument technical field, concretely relates to a kind of tensioning guide wire or catheter fixed transfer device.The device includes: rack;At least one clamp group, each clamp group includes at least two clamps in first direction alignment and interval arrangement, each clamp group is used to clamp a guide wire or catheter in target position, and the guide wire or catheter is positioned on upstream guide wire or catheter conveying mechanism in tension state, clamp group is also used to keep the tension state of guide wire or catheter, and first direction is parallel to the length direction of guide wire or catheter;Ejection mechanism is used to drive the clamp group in target position clamp guide wire or catheter.The device can keep the tension state of guide wire or catheter during the process of transferring guide wire or catheter in tension state, avoid the relaxation phenomenon of guide wire or catheter caused by clamp loosening and re-clamping in existing device, ensure the original state of guide wire or catheter, and then ensure guide wire or catheter processing performance and clinical application effect.

Description

Technical Field

[0001] This utility model relates to the field of medical device manufacturing technology, specifically to a tensioning guidewire or catheter fixation and transfer device. Background Technology

[0002] Guidewires and catheters, as key instruments commonly used in interventional medicine, can be inserted through the body's luminal cavity to reach the target site, playing a vital role in minimally invasive treatments. During the fabrication and clinical application of guidewires and catheters, transfer and fixation are typically required. However, existing guidewire or catheter fixation and transfer devices usually employ simple clamping structures. Due to advancements in manufacturing technology, the need for transferring tensioned guidewires or catheters during production has arisen in automated workshops. Traditional clamping operations require manual intervention, which is inconvenient for machine alignment. Furthermore, the loosening and re-clamping processes of the clamps can easily lead to relaxation of the guidewire or catheter, severely disrupting its tension and significantly weakening the overall stability and reliability of existing devices. This affects the performance or application effectiveness of guidewire or catheter fabrication, posing potential risks to the safety and outcome of interventional procedures. Therefore, there is a need to develop a novel guidewire or catheter fixation and transfer device that maintains the original state of the guidewire or catheter and a rapid transfer method suitable for automated workshops. Utility Model Content

[0003] The purpose of this utility model is to provide a tensioning guidewire or catheter fixation and transfer device to solve the problems of existing guidewire or catheter fixation and transfer devices that easily damage the original state of the guidewire or catheter when transferring the guidewire or catheter, and the low overall stability and reliability of the device.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a tensioning guide wire or catheter fixing and transfer device, characterized in that it includes: a placement frame; At least one clamping group, each clamping group comprising at least two clamps aligned and spaced apart in a first direction, each clamping group being used to clamp a tensioned guidewire or catheter delivered by an upstream guidewire or catheter delivery mechanism, the clamping group also being used to maintain the tension of the guidewire or catheter, the first direction being parallel to the length direction of the guidewire or catheter; An ejection mechanism is used to drive the clamping assembly at the target position to move in a direction perpendicular to the plane of the placement frame to clamp the guide wire or the catheter.

[0005] Furthermore, the clamps in each clamp group operate synchronously to simultaneously clamp the guidewire or the catheter, ensuring that the guidewire or the catheter remains taut throughout the transfer process.

[0006] Furthermore, a plurality of clamp groups are arranged on the placement frame along a second direction, which is perpendicular to the length direction of the guidewire or the catheter.

[0007] Furthermore, the guidewire or conduit delivery mechanism is a robotic arm, and multiple clamping groups perform clamping actions in sequence, clamping one guidewire or conduit each time. The guidewire or conduit is clamped by the robotic arm and then sent into the clamping space of the clamping group.

[0008] Furthermore, the clamp includes a clamping block and an elastic element; the clamping block is sleeved on the fixed block of the placement frame, and a clamping slot is provided at one end of the clamping block away from the ejection mechanism or in cooperation with the fixed block to form a clamping slot for clamping the guide wire or the conduit; the elastic element is disposed on the side of the fixed block facing the ejection mechanism and elastically connected between the fixed block and the clamping block; the clamping block is used to move perpendicular to the placement frame under the push of the ejection mechanism to push out the clamping slot; the clamping block is used to reset under the restoring force of the elastic element to retract the clamping slot.

[0009] Furthermore, the clamping block has a cavity inside for accommodating the fixing block. The cavity extends along the movement direction of the ejection mechanism. The elastic element is disposed in the cavity, with one end connected to the side of the fixing block away from the clamping slot and the other end connected to the inner wall of the cavity corresponding to the ejection mechanism.

[0010] Furthermore, the elastic element is a compression spring or an elastic block made of elastic material.

[0011] Furthermore, the ejection mechanism includes an ejector pin, which is disposed on one end of the clamping block away from the clamping slot, for applying a thrust to the clamping block.

[0012] Furthermore, the placement rack is also provided with a fixing element, which is disposed on the clamp and is used to define the position of the clamp.

[0013] The beneficial effects of this utility model are as follows: The tensioned guidewire or catheter fixing and transfer device provided in this application uses at least two clamps aligned and spaced apart in a first direction to clamp the guidewire or catheter in a tensioned state on the upstream guidewire or catheter delivery mechanism. This ensures that the tensioned guidewire or catheter is maintained throughout the transfer process, avoiding the loosening of the guidewire or catheter caused by clamping and re-clamping in existing devices. This effectively protects the original state of the guidewire or catheter, thereby ensuring the processing performance and clinical application effect of the guidewire or catheter. Furthermore, the guidewire or catheter is inserted through the clamping slot, simplifying the operation and greatly facilitating automation.

[0014] By rationally designing the number of clamps in each clamp group and precisely controlling the synchronous movement of the clamps in each clamp group, it is possible to ensure that the guidewire or catheter is subjected to uniform force during the transfer process, effectively avoiding the occurrence of phenomena such as guidewire or catheter loosening due to inconsistent clamp movements. At the same time, it also significantly reduces the possibility of guidewire or catheter damage, greatly improving the overall stability and reliability of the device.

[0015] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a tensioning guide wire or catheter fixing and transfer device according to a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a tensioning guide wire or catheter fixing and transfer device according to a preferred embodiment of the present invention; Figure 3 In this utility model Figure 1 Enlarged schematic diagram of region P in the middle; Figure 4 This is a top view of a preferred embodiment of the tensioning guide wire or catheter fixing and transfer device of this utility model; Figure 5 In this utility model Figure 4 Enlarged schematic diagram of region O; Figure 6 In this utility model Figure 2 Enlarged diagram of the middle Q region; Figure label: 1. Placement rack; 11. Fixing block; 2. Clamp; 21. Clamping block; 22. Elastic element; 23. Clamping groove; 3. Ejector pin; 4. Fixing element; 5. Guide wire or conduit delivery mechanism; 61. Conduit; 62. Guide wire. Detailed Implementation

[0017] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] Please see Figure 1 The tensioning guidewire or catheter fixing and transfer device according to a preferred embodiment of this application includes a placement frame 1, at least one clamping assembly, and an ejection mechanism. The placement frame 1 serves as the basic support structure for the entire tensioning guidewire or catheter fixing and transfer device, providing an installation position for the clamping assemblies. Each clamping assembly is used to clamp a guidewire 62 or catheter 61 positioned on the upstream guidewire or catheter delivery mechanism 5 in a tensioned state at a target location, and to maintain the tension of the guidewire 62 or catheter 61. Each clamping assembly includes at least two clamps 2 aligned and spaced apart in a first direction parallel to the length direction of the guidewire 62 or catheter 61. The ejection mechanism drives the clamping assembly at the target location to perform an action in a direction perpendicular to the plane of the placement frame 1 to clamp the guidewire 62 or catheter 61, ensuring that the guidewire 62 or catheter 61 can be clamped smoothly and accurately. The guidewire or catheter delivery mechanism 5 is a robotic arm used to clamp the guidewire 62 or catheter 61 and deliver it into the clamping space of the clamping assembly.

[0022] In this embodiment, the clamps 2 in each clamp group perform synchronous clamping actions to simultaneously clamp the guidewire 62 or catheter 61, which is in a taut state, on the upstream guidewire or catheter delivery mechanism 5. This ensures that the guidewire 62 or catheter 61 remains taut throughout the transfer process, effectively preventing uneven force and loosening of the guidewire 62 or catheter 61 caused by asynchronous clamping actions. Maintaining the original tautness of the guidewire 62 or catheter 61 during transfer and fixation not only helps improve the processing accuracy of the guidewire 62 or catheter 61 and ensure its performance during processing, but also helps reduce surgical risks and increase the success rate of interventional surgery in clinical applications, providing strong protection for patients' health and life.

[0023] In other embodiments, the clamps 2 in each clamp group can also perform clamping actions in a specific order; for example, the clamp 2 set at the upper end of the placement frame 1 first clamps one end of the guide wire 62 or guide tube 61 in a tensioned state on the upstream guide wire or guide tube delivery mechanism 5, and the clamp 2 set at the lower end of the placement frame 1 then clamps the other end of the guide wire 62 or guide tube 61 in a tensioned state on the upstream guide wire or guide tube delivery mechanism 5. After two or more clamps 2 in each clamp group have clamped the guide wire 62 or guide tube 61, the upstream guide wire or guide tube delivery mechanism 5 then releases the guide wire 62 or guide tube 61.

[0024] In this embodiment, such as Figure 2As shown, multiple clamp sets are arranged on the placement frame 1 along a second direction, which is perpendicular to the length direction of the guidewire 62 or the conduit 61. Each clamp set includes two clamps 2, which are disposed opposite to each other at both ends of the placement frame 1. The clamp 2 includes a clamping block 21 and an elastic element 22 disposed on the clamping block 21. The clamping block 21 is sleeved on the fixing block 11 on the placement frame 1, and the end of the clamping block 21 away from the ejection mechanism is provided with a clamping groove 23 for clamping the guidewire 62 or the conduit 61. The elastic element 22 is disposed on the side of the fixed block 11 facing the ejection mechanism and is elastically connected between the fixed block 11 and the clamping block 2. This allows the clamping block 21 to move towards the guide wire 62 or the conduit 61 under the push of the ejection mechanism, extending the clamping slot 23 to hook the guide wire 62 or the conduit 61. After the thrust of the ejection mechanism is withdrawn, the clamping block 21 resets under the restoring force of the elastic element 22, withdrawing the clamping slot 23 to clamp the guide wire 62 or the conduit 61, thus completing the clamping action of the guide wire 62 or the conduit 61. In other embodiments, each clamp group includes at least two clamps 2. For example, in addition to the two clamps 2 disposed opposite to each other at both ends of the placement frame 1, clamps 2 may also be disposed opposite to each other in the middle region of the placement frame 1. The clamps 2 may also be clamps with other structures that have a clamping function. The clamping slot 23 can also be formed by the end of the clamping block 21 away from the ejection mechanism cooperating with the fixing block 11. The inner wall of the clamping slot 23 can also be provided with anti-slip texture to enable the clamping slot 23 to reliably hook and clamp the guide wire 62 or the conduit 61, prevent the guide wire 62 or the conduit 61 from sliding or falling off during the transfer process, and help the guide wire 62 or the conduit 61 maintain its original tension during the transfer process.

[0025] In this embodiment, such as Figure 3 The clamping block 21 has a cavity inside for accommodating the fixing block 11, and the cavity extends along the movement direction of the ejection mechanism, that is, the cavity extends from the end near the clamping slot 23 to the end away from the clamping slot 23. The fixing block 11 is disposed inside the cavity on the side near the clamping slot 23, and the elastic element 22 is disposed inside the cavity, with one end connected to the side of the fixing block 11 away from the clamping slot 23 and the other end connected to the side wall of the cavity, that is, the elastic element 22 is disposed inside the cavity on the side away from the clamping slot 23. Furthermore, this elastic element 22 is a compression spring. Figure 4As shown, when the ejector mechanism applies a pushing force to the clamping block 21, the clamping block 21 will advance forward relative to the placement frame 1, causing the clamping slot 23 to be pushed out, which is used to hook the guide wire 62 or conduit 61 in a tensioned state on the guide wire or conduit delivery mechanism 5. Since the fixing block 11 is fixedly installed on the placement frame 1, the elastic element 22 will be compressed during the forward advancement of the clamping block 21. When the pushing force applied to the clamping block 21 by the ejector mechanism is withdrawn, under the reaction force of the compressed elastic element 22, the clamping block 21 will retract backward relative to the placement frame 1, causing the clamping slot 23 to retract and clamp the guide wire 62 or conduit 61. In other embodiments, the elastic element 22 can also be an elastic block made of elastic material. The mounting position of the placement frame 1 may not be provided with a protruding fixing block 11. For example, a limiting block can be provided inside the cavity. When the clamping block 21 is placed on the placement frame 1, the limiting block passes through the cavity and is fixedly connected to the mounting position of the placement frame 1.

[0026] In this embodiment, such as Figure 5 As shown, the ejection mechanism includes an ejector pin 3, which is disposed on the clamping block 21 at one end away from the clamping slot 23. The ejector pin 3 is used to apply a pushing force to the clamping block 21 to drive the clamping assembly at the target position to clamp the guide wire 62 or the guide tube 61. In other embodiments, the ejection mechanism may include other ejection structures capable of achieving the above-mentioned function, and may also include a driving member, such as a cylinder, that drives the ejector pin 3 to apply a pushing force to the clamping block 21.

[0027] The shelf 1 is also equipped with a fixing element 4, such as Figure 6 As shown, the fixing element 4 is disposed on the clamp 2 to limit the position of the clamp 2 and ensure the stability of the clamp 2 during operation. In this embodiment, the fixing element 4 is a fixing plate disposed on the placement frame 1, and simultaneously limits and fixes multiple clamps 2 disposed on one end of the placement frame 1. In other embodiments, the fixing element 4 can also be a series of small limiting plates, each of which can only limit and fix one clamp 2.

[0028] In this embodiment, the guidewire 62 or catheter 61 is clamped by the robotic arm and fed into the clamping space of the clamping set. Multiple clamping sets arranged along the second direction on the placement frame 1 sequentially perform clamping actions, clamping one guidewire 62 or catheter 61 at a time. This method of operation is more flexible and can be applied to scenarios where there are specific requirements for the transfer sequence of the guidewire 62 or catheter 61. In other embodiments, multiple clamping sets perform clamping actions simultaneously to clamp multiple guidewires 62 or catheters 61 at the same time. This method of operation can significantly improve the efficiency of guidewire 62 or catheter 61 transfer and is more suitable for scenarios requiring batch transfer of guidewires 62 or catheters 61.

[0029] The assembly method of the above-mentioned tensioning guidewire or catheter fixation and transfer device is as follows: First, install the clamping blocks on the placement frame according to the design requirements, ensuring that the clamping blocks in each clamping group are aligned in the first direction and spaced apart; then, install the elastic element into the cavity of the clamping block, and ensure that the installation position of the elastic element is on the side of the cavity away from the clamping groove; then, install the ejector pin on the end of the clamping block away from the clamping groove; finally, install the fixing element on the clamp, fix the position of the clamp, and complete the assembly of the entire tensioning guide wire or guide tube fixing and transfer device.

[0030] The working method of the above-mentioned tensioning guidewire or catheter fixation and transfer device is as follows: The ejection mechanism is activated, applying thrust to the clamping blocks of one of the multiple clamping groups in a preset sequence, causing the two clamping slots in that clamping group to be ejected. Immediately afterwards, the guidewire or conduit delivery mechanism clamps the guidewire or conduit to be delivered, aligning it with the two clamping slots. The guidewire or conduit delivery mechanism is then driven to move the guidewire or conduit into the two clamping slots, ensuring the slots successfully hook the guidewire or conduit. Subsequently, the thrust of the ejection mechanism is withdrawn, causing the two clamping blocks of the same clamping group to jointly clamp the guidewire or conduit to be delivered, and the guidewire or conduit delivery mechanism releases the guidewire or conduit, completing the clamping of a single guidewire or conduit. Repeating the above operations sequentially completes the clamping and transfer of other guidewires or conduits.

[0031] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A device for fixing and transferring tensioned guidewires or catheters, characterized in that, include: Placement rack (1); At least one clamping group, each clamping group comprising at least two clamps (2) aligned and spaced apart in a first direction, each clamping group being used to clamp a guidewire (62) or catheter (61) in a tensioned state delivered by an upstream guidewire or catheter delivery mechanism (5), the clamping group also being used to maintain the tensioned state of the guidewire (62) or the catheter (61), the first direction being parallel to the length direction of the guidewire (62) or the catheter (61); An ejection mechanism is used to drive the clamp assembly at the target position to move in a direction perpendicular to the plane of the placement frame (1) to clamp the guide wire (62) or the catheter (61).

2. The tensioning guidewire or catheter fixation and transfer device as described in claim 1, characterized in that, The clamps (2) in each clamp group operate synchronously to simultaneously clamp the guidewire (62) or the catheter (61), ensuring that the guidewire (62) or the catheter (61) remains taut during the transfer process.

3. The tensioning guidewire or catheter fixation and transfer device as described in claim 1 or 2, characterized in that, The placement frame (1) is provided with a plurality of clamp groups arranged along a second direction, which is perpendicular to the length direction of the guide wire (62) or the catheter (61).

4. The tensioning guidewire or catheter fixation and transfer device as described in claim 3, characterized in that, The guide wire or catheter delivery mechanism (5) is a robotic arm. Multiple clamping groups perform clamping actions in sequence, clamping one guide wire (62) or catheter (61) each time. The guide wire (62) or catheter (61) is clamped by the robotic arm and then sent into the clamping space of the clamping group.

5. The tensioning guidewire or catheter fixation and transfer device as described in claim 3, characterized in that, The clamp (2) includes a clamping block (21) and an elastic element (22); the clamping block (21) is sleeved on the fixing block (11) on the placement frame (1), and the clamping block (21) is provided with a clamping slot (23) at one end away from the ejection mechanism or forms a clamping slot (23) in cooperation with the fixing block (11) for clamping the guide wire (62) or the conduit (61). The elastic element (22) is provided on the side of the fixing block (11) facing the ejection mechanism and is elastically connected between the fixing block (11) and the clamping block (2). The clamping block (21) is used to move perpendicular to the placement frame (6) under the push of the ejection mechanism to push out the clamping slot (23). The clamping block (21) is used to reset under the restoring force of the elastic element (22) to retract the clamping slot (23).

6. The tensioning guidewire or catheter fixation and transfer device as described in claim 5, characterized in that, The clamping block (21) has a cavity inside for accommodating the fixing block (11). The cavity extends along the movement direction of the ejection mechanism. The elastic element (22) is disposed in the cavity and one end is connected to the side of the fixing block (11) away from the clamping slot (23), and the other end is connected to the inner wall of the cavity corresponding to the ejection mechanism.

7. The tensioning guidewire or catheter fixation and transfer device as described in claim 5, characterized in that, The elastic element (22) is a compression spring or an elastic block made of elastic material.

8. The tensioning guidewire or catheter fixation and transfer device as described in claim 5, characterized in that, The ejection mechanism includes an ejector pin (3), which is disposed on one end of the clamping block (21) away from the clamping slot (23) and is used to apply a thrust to the clamping block (21).

9. The tensioning guidewire or catheter fixation and transfer device as described in claim 3, characterized in that, The placement rack (1) is also provided with a fixing element (4), which is disposed on the clamp (2) and is used to limit the position of the clamp (2).

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