Cardiovascular guide wire clamping intervention auxiliary device

Abstract

The present application relates to a kind of cardiovascular department guide wire clamping intervention auxiliary device, including shell, auxiliary roller being rotatably installed in the inside of shell and support seat being fixedly connected on shell, sliding block for rotatably installing driving roller is slidably arranged on support seat, driving roller is clamped guide wire in cooperation with auxiliary roller;The precision feed mechanism is arranged in the mounting groove opened in the top of shell, it includes two sliding seats, two clamping plates and pressing piece;The angle adjusting mechanism is arranged at the end of shell away from driving roller, it includes rotating ring, U-shaped clamping block, push rod and push plate, U-shaped clamping block is fixed in the inner wall of rotating ring, push rod is slidably arranged at the top of rotating ring, and push plate is fixed on the output end of push rod and located in rotating ring;Solve the problem that traditional guide wire clamping device estimates the moving distance and rotation angle of guide wire by hand feeling, there is big error, precision is insufficient, increase the risk of operation, and applicability is not strong.

Description

Technical Field

[0001] This invention belongs to the field of medical auxiliary devices and relates to an interventional auxiliary device for guidewire clamping in cardiovascular medicine. Background Technology

[0002] Interventional cardiovascular surgery is a common minimally invasive procedure for treating cardiovascular diseases such as coronary heart disease and vascular stenosis. Its core operation involves establishing access through puncture of a blood vessel, inserting a guidewire into the vessel, and using the guidewire to guide catheters, balloons, stents, and other instruments to the lesion site to complete treatment operations such as dilation and stent implantation. The precise clamping, advancement, angle adjustment, and blind operation control of the guidewire directly affect the accuracy, efficiency, and safety of the surgery and are one of the key links to the success of interventional surgery.

[0003] Currently, guidewire clamping devices used in clinical interventional procedures have many technical shortcomings, making it difficult to meet the needs of precise clinical operation. These shortcomings are as follows:

[0004] Traditional clamping devices mostly use rubber grippers to hold guidewires. When these grippers come into contact with bodily fluids such as blood and contrast agents, a water film forms on their surface, creating a "water film lubrication effect." This results in insufficient clamping force, making the guidewire prone to slippage and displacement. To avoid slippage, medical staff can only increase the clamping pressure. However, excessive pressure can cause the internal metal core of the guidewire to undergo plastic bending, deformation, or even breakage, increasing the guidewire scrap rate and surgical consumable costs. Furthermore, locking the guidewire requires the cooperation of both hands or the use of additional tools to complete the locking and releasing operations, which is cumbersome. When medical staff need to operate other instruments such as puncture needles or balloon catheters with both hands, they cannot quickly and conveniently lock the guidewire, which can easily lead to guidewire displacement.

[0005] During interventional surgery, medical staff need to keep a close eye on the surgical screen to observe the position of the guidewire in the blood vessel. They cannot look down to observe the guidewire's advancement length and rotation angle. They can only estimate the guidewire's movement distance and rotation angle by touch, which has a large error. Especially when dealing with extremely stenotic or calcified lesions, the lack of precise micro-manipulation control can easily lead to guidewire displacement, entrapment, or even serious complications such as vascular perforation and dissection, increasing the risk of surgery. Summary of the Invention

[0006] In view of this, in order to solve the problems of large errors, insufficient accuracy, increased surgical risks, and limited applicability of traditional guidewire clamping devices that rely on manual estimation of guidewire movement distance and rotation angle, the present invention provides an interventional auxiliary device for guidewire clamping in cardiovascular medicine.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A cardiovascular guidewire clamping interventional auxiliary device includes a housing, an auxiliary roller rotatably mounted inside the housing, a support base fixedly mounted on one side of the housing, a sliding block movably mounted on the support base, and an active roller rotatably mounted on the top of the sliding block that cooperates with the auxiliary roller to clamp the guidewire. When the active roller is pushed to rotate by a finger, the guidewire is moved by friction.

[0009] The top of the housing has a mounting groove, in which a precision feeding mechanism is slidably mounted. The precision feeding mechanism includes two sliding seats, two clamping plates and a pressing component. Pressing down on the pressing component drives the clamping plates to move inward to clamp the guide wire. The top of the housing has a length feedback component that works with the sliding seats.

[0010] An angle adjustment mechanism is located at one end of the housing. The angle adjustment mechanism includes a rotating ring, a U-shaped clamping block is fixedly provided on the inner wall of the rotating ring, a push rod is slidably provided through the top of the rotating ring, and a push plate located inside the rotating ring is fixedly provided at the output end of the push rod. The push plate works in conjunction with the U-shaped clamping block. When the push rod is pressed down, it drives the U-shaped clamping block to deform and clamp the guide wire. When the push rod is moved, it drives the guide wire to rotate and adjust the angle.

[0011] Furthermore, a rectangular through hole is provided at the top of the support base, and two guide rods I are fixedly installed in the rectangular through hole. The sliding block is slidably sleeved on the two guide rods I. A spring I is sleeved on the outer wall of the guide rod I, and the two ends of the spring I abut against one side of the sliding block and one side of the inner wall of the rectangular through hole, respectively.

[0012] Furthermore, two guide rods II are slidably provided through one side of the sliding seat, and a clamping plate is fixed to one end of the two guide rods II. A tension spring I is sleeved on the outer wall of the guide rod II. The two ends of the tension spring I are fixedly connected to the sliding seat and the clamping plate respectively on the side that is close to each other. A groove adapted to the guide wire is opened on the inner side of the clamping plate.

[0013] Furthermore, a mounting hole is provided in the bottom of the pressing component, a guide rod Ⅲ is slidably provided in the mounting hole, and a spring Ⅱ is provided in the mounting hole. The two ends of the spring Ⅱ abut against the top of the mounting hole and the top of the guide rod Ⅲ, respectively. The guide rod Ⅲ is fixed to the top of the corresponding sliding seat. A wedge is fixedly provided at the bottom of the pressing component, and an inclined surface that cooperates with the wedge is provided at the top of the clamping plate.

[0014] Furthermore, it also includes a locking component, which includes a guide seat fixed to one end of the pressing member, a sliding strip slidably mounted on the guide seat, a slot with an L-shape on one side of one of the sliding seats, and a limiting block fixedly mounted at the bottom end of the sliding strip, the limiting block sliding within the slot.

[0015] Furthermore, a sealing block is detachably provided at one end of the housing, and a support ring is fixedly provided on the side of the sealing block near the housing, with the rotating ring rotatably sleeved on the support ring.

[0016] Furthermore, it also includes an angle feedback component, which includes a toothed ring fixedly sleeved on the outer wall of the rotating ring, a fixed seat fixedly provided on the top of the sealing block, and a spring plate fixedly provided on the top of the fixed seat. One end of the spring plate is located in one of the teeth on the toothed ring. Each time the spring plate passes over a tooth, the guide wire is adjusted to rotate by 1°.

[0017] Furthermore, the length feedback component includes a rack fixed to the top of the housing, and a locating pin that engages with the rack is slidably provided through one side of one of the sliding seats. A tension spring II is sleeved on the outer wall of the locating pin, and the two ends of the tension spring II are fixedly connected to the inner side of the sliding seat and the other end of the locating pin, respectively.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. The cardiovascular guidewire clamping interventional auxiliary device disclosed in this invention, driven by the frictional force between the active roller and the auxiliary roller, can meet the need for the guidewire to quickly reach the target position. Through the sliding of the sliding seat and the length feedback component, precise feed control of the guidewire can be achieved. Medical staff can grasp the feed length through vibration feedback, solving the problem of insufficient accuracy caused by the traditional device relying on the sense of touch to estimate the feed length. At the same time, the angle adjustment mechanism can realize multi-angle adjustment of the guidewire. With the help of the angle feedback component, medical staff do not need to look down to observe. They can accurately grasp the rotation angle through vibration and sound feedback, realizing precise blind operation control. It is especially suitable for scenarios where medical staff need to stare at the surgical screen and cannot observe the guidewire, improving the convenience and safety of surgical operation.

[0020] 2. The cardiovascular guidewire clamping interventional auxiliary device disclosed in this invention achieves adaptive clamping of the guidewire through the cooperation of the auxiliary roller and the active roller, under the elastic action of spring I. The anti-slip texture increases friction and avoids slippage during rapid advancement. The inner groove of the clamp plate is adapted to the shape of the guidewire, and the inner wall is treated with flexibility. The U-shaped clamping block uses elastic deformation to achieve stable clamping. All of these do not require excessive pressure, which can effectively avoid damage to the guidewire surface coating and plastic bending and scrapping, reducing surgical consumables consumption and surgical risks.

[0021] 3. The cardiovascular guidewire clamping interventional auxiliary device disclosed in this invention can achieve clamping by pressing the pressing part, lock the clamping state by pushing the sliding bar, and complete guidewire clamping and angle adjustment by pressing and pulling the push rod. It is simple and easy to operate. The locking component can achieve stable clamping of the guidewire for a long time. Medical staff do not need to manually hold the guidewire when operating other instruments with their hands, avoiding guidewire displacement, effectively reducing workload and improving surgical efficiency.

[0022] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0023] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein:

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the cardiovascular guidewire clamping interventional auxiliary device of the present invention;

[0025] Figure 2 For the present invention Figure 1 Another perspective;

[0026] Figure 3 For the present invention Figure 1 Schematic diagram of the medium precision feed mechanism;

[0027] Figure 4 For the present invention Figure 3 Sectional view of the middle sliding seat;

[0028] Figure 5 For the present invention Figure 3 Sectional view of the pressing component;

[0029] Figure 6 For the present invention Figure 1 Schematic diagram of the mid-angle adjustment mechanism;

[0030] Figure 7 This is a schematic diagram of the U-shaped clamping block and push plate structure in the angle adjustment mechanism of the present invention.

[0031] Reference numerals: 1. Housing; 2. Guide wire; 3. Precision feed mechanism; 4. Rack; 5. Auxiliary roller; 6. Drive roller; 7. Angle adjustment mechanism; 11. Mounting groove; 12. Support seat; 121. Rectangular through hole; 122. Sliding block; 123. Guide rod I; 124. Spring I; 13. Sealing block; 14. Support ring; 31. Sliding seat; 32. Guide rod II; 33. Clamping plate; 331. Groove; 3 32. Inclined surface; 34. Tension spring I; 35. Pressing element; 351. Mounting hole; 352. Spring II; 353. Guide rod III; 36. Guide seat; 37. Sliding bar; 371. Limiting block; 38. Slot; 310. Positioning pin; 311. Tension spring II; 312. Wedge block; 71. Rotating ring; 72. Toothed ring; 73. Fixed seat; 74. Spring piece; 75. U-shaped clamping block; 76. Push plate; 77. Push rod. Detailed Implementation

[0032] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0033] like Figure 1 , Figure 2 The cardiovascular guidewire clamping interventional auxiliary device shown is suitable for cardiovascular interventional surgery to clamp, precisely feed, adjust the angle, and provide feedback for guidewire 2. It is compatible with commonly used clinical guidewire specifications 2. The whole device is made of medical-grade materials, meets the requirements of aseptic operation, has a simple structure and is easy to operate, and can effectively improve the accuracy and efficiency of surgery.

[0034] In this device, the housing 1 serves as the mounting base for the entire device. Made of medical-grade compatible material, it is lightweight yet strong, facilitating handheld operation by medical personnel. It also withstands the sterilization procedures required for surgery, providing stable support for all components. Inside the housing 1, an auxiliary roller 5 is rotatably mounted via a rotating shaft. The auxiliary roller 5 is made of flexible medical-grade material (medical silicone) with a finely textured anti-slip surface. This increases friction with the guidewire 2 while preventing damage to the hydrophilic coating on the guidewire 2's surface. The rotating shaft of the auxiliary roller 5 is clearance-fitted with the housing 1, ensuring smooth and unobstructed rotation. It rotates synchronously with the guidewire 2, reducing wear on the guidewire 2's surface.

[0035] A support base 12 is fixedly installed on one side of the housing 1 via a fixing connector. The support base 12 is made of rigid medical-grade material, and its connection surface with the housing 1 is sealed to ensure a firm and secure connection, providing a stable mounting platform for the sliding block 122 and the guide rod I 123. A rectangular through hole 121 is provided at the top of the support base 12 to accommodate the guide rod I 123 and the sliding block 122. Two guide rods I 123 are fixedly installed within the rectangular through hole 121, arranged parallel to each other, serving as guides and limiters to ensure that the sliding block 122 can only slide along the axial direction of the guide rod I 123, preventing deviation during sliding. The guide rod I 123 is made of rigid, corrosion-resistant material with a smooth surface treatment to reduce friction during sliding and ensure smooth sliding of the sliding block 122. The sliding block 122 is slidably sleeved on the two guide rods I123. The material of the sliding block 122 is the same as that of the support base 12. It has two through holes that are adapted to the guide rods I123. The fit clearance between the through holes and the guide rods I123 is reasonable, which can ensure smooth sliding and avoid excessive shaking. The sliding block 122 is used to install the active roller 6 and drive the active roller 6 to move synchronously.

[0036] A spring I124 is fitted onto the outer wall of the guide rod I123. The spring I124 is a compression spring made of an elastic, corrosion-resistant material. Both ends of the spring I124 abut against one side of the sliding block 122 and the inner wall of one side of the rectangular through hole 121, respectively. Utilizing the elastic force of the spring itself, it continuously pushes the sliding block 122 away from the auxiliary roller 5, thereby causing the active roller 6, which is rotatably mounted on the top of the sliding block 122 via a rotating shaft, to move away from the auxiliary roller 5. The structure of the active roller 6 is completely identical to that of the auxiliary roller 5. The two work together to form a clamping gap, the size of which can be adaptively adjusted according to the diameter of the guide wire 2, ensuring stable clamping for guide wires 2 of different specifications. When medical staff press and push the active roller 6 to rotate with their fingers, friction is generated between the active roller 6 and the guide wire 2. This friction can be used to smoothly push the guide wire 2 to move along the axial direction. While the active roller 6 rotates, the sliding block 122 will adaptively adjust according to the position of the guide wire 2 to ensure that the clamping gap is always in contact with the guide wire 2 and there will be no slippage. This can meet the needs of rapid advancement of the guide wire 2 during surgery.

[0037] The top of the housing 1 is provided with a mounting groove 11, which is used to accommodate such as Figure 3 The precision feed mechanism 3 shown has a smooth inner wall to reduce friction when the sliding seat 31 slides, ensuring smooth movement of the sliding seat 31. The precision feed mechanism 3 is slidably installed in the mounting groove 11. The precision feed mechanism 3 includes two sliding seats 31, two clamping plates 33, and a pressing element 35. The two sliding seats 31 are symmetrically arranged in the mounting groove 11 via guide rails. The sliding seats 31 are made of rigid medical material, and the bottom surface that contacts the inner wall of the mounting groove 11 is treated with wear-resistant material to reduce wear during sliding and extend service life. The sliding seats 31 can slide smoothly along the length of the mounting groove 11, providing mounting support for the clamping plates 33 and the pressing element 35, and driving them to move synchronously to achieve precision feeding of the guide wire 2.

[0038] Two guide rods II 32 are slidably mounted on one side of the sliding seat 31. The two guide rods II 32 are arranged in parallel, serving as guides and limiters to ensure that the clamping plate 33 can only move along the axial direction of the guide rods II 32, preventing deviation during movement. The guide rods II 32 are made of the same material as the guide rods I 123, and their surfaces are also smoothed to reduce sliding resistance. One end of the guide rods II 32 is fixedly connected to the clamping plate 33 via a fixed connection. The connection point is smooth and burr-free to avoid scratching the guide wire 2. The clamping plate 33 is made of medical-grade rigid material, and its inner side has openings adapted to the guide wire 2. Figure 4The groove 331 shown has an arc that matches the shape of the guide wire 2, which can increase the contact area with the guide wire 2 and improve the clamping stability. The inner wall of the groove 331 is made flexible, which can not only increase the clamping stability, but also protect the surface coating of the guide wire 2 from damage. The two clamping plates 33 are arranged opposite to each other to jointly clamp the guide wire 2.

[0039] The outer wall of the guide rod II 32 is fitted with a tension spring I 34. The tension spring I 34 is a tension spring made of elastic and corrosion-resistant material. The two ends of the tension spring I 34 are fixedly connected to the sliding seat 31 and the adjacent side of the clamping plate 33 by hooks. Using the tension of the spring itself, the clamping plate 33 is continuously pulled away from the guide wire 2, so that the two clamping plates 33 are in a naturally open state, which facilitates the placement and removal of the guide wire 2. At the same time, when the pressing part 35 is released, it can drive the clamping plate 33 to quickly reset and release the clamping of the guide wire 2.

[0040] like Figure 5 The pressing component 35 shown is made of lightweight medical-grade material and is elongated in shape for easy operation by medical personnel. A mounting hole 351 is provided at the bottom of the pressing component 35 to accommodate the guide rod Ⅲ 353 and the spring Ⅱ 352. The guide rod Ⅲ 353, made of rigid medical-grade material, slides smoothly within the mounting hole 351 without jamming. The guide rod Ⅲ 353 serves as a guide and limiter, ensuring that the pressing component 35 can only move up and down along the axial direction of the guide rod Ⅲ 353, preventing deviation during pressing. The bottom of the guide rod Ⅲ 353 is fixed to the top of the corresponding sliding seat 31 via a fixed connection, ensuring a secure connection that is not easily detached and providing stable support for the pressing component 35.

[0041] Spring II 352 is installed inside mounting hole 351. Spring II 352 is a compression spring and its material is the same as that of spring I 124. The two ends of spring II 352 abut against the top of mounting hole 351 and the top of guide rod III 353, respectively. Utilizing the elastic force of the spring itself, when the pressing part 35 is not pressed, it lifts the pressing part 35, causing the wedge block 312 to disengage from the inclined surface 332, ensuring that the clamping plate 33 is in the open state. When the pressing part 35 is pressed, spring II 352 is compressed and stores elastic potential energy. When the pressing is released, the elastic potential energy is released, causing the pressing part 35 to return to its original position. The bottom of the pressing member 35 is fixedly provided with a wedge 312 by a fixed connection. The wedge 312 is made of rigid medical material and the surface is smoothed. The top of the clamping plate 33 is provided with an inclined surface 332 that cooperates with the wedge 312. The inclined surface 332 is completely in contact with the inclined surface of the wedge 312. By utilizing the guiding effect of the inclined surface, the downward pressing force of the pressing member 35 is converted into the inward clamping force of the clamping plate 33, ensuring that the wedge 312 can smoothly push the clamping plate 33 to move when it moves downward, thereby achieving the clamping of the guide wire 2.

[0042] When medical staff press down on the pressing element 35, the pressing element 35 moves downward along the guide rod Ⅲ 353, compressing the spring Ⅱ 352. Simultaneously, the wedge block 312 moves downward along with the pressing element 35. Through the guiding action of the inclined surface 332, it generates an inward pushing force on the two clamping plates 33, pushing the two clamping plates 33 inward along the guide rod Ⅱ 32, thereby clamping the guide wire 2. The clamping force can be flexibly adjusted by pressing the pressing element 35, ensuring that the guide wire 2 is firmly clamped without causing plastic bending of the guide wire 2 due to excessive force, thus avoiding the scrapping of the guide wire 2. After pressing, the pressing element 35 is released. Under the elastic restoring action of the spring Ⅱ 352, the pressing element 35 moves upward, and the wedge block 312 disengages from the compression of the inclined surface 332. Under the pulling force of the tension spring Ⅰ 34, the clamping plates 33 return to their original position, releasing the clamping of the guide wire 2. The operation is convenient and efficient.

[0043] This device also includes a locking assembly, which is used to lock the position of the pressing member 35 to ensure the stable clamping state of the clamping plate 33 on the guide wire 2. The locking assembly includes a guide seat 36 fixed to one end of the pressing member 35. The guide seat 36 is made of rigid medical material and is fixedly connected to the pressing member 35 to provide guidance and support for the sliding strip 37. The sliding strip 37 is slidably sleeved on the guide seat 36. The sliding strip 37 is also made of rigid medical material and can slide smoothly horizontally along the guide seat 36, thereby driving the movement of the limiting block 371. One side of one of the sliding seats 31 has a slot 38. The slot 38 is L-shaped and is used to accommodate and limit the limiting block 371. The bottom end of the sliding strip 37 is fixedly connected to the limiting block 371. The size of the limiting block 371 is adapted to the slot 38 and can slide flexibly within the slot 38. The surface of the limiting block 371 is treated with anti-slip material to increase the friction with the inner wall of the slot 38, prevent accidental sliding, and ensure a stable locking state.

[0044] When the pressing member 35 is pressed down to clamp the guide wire 2 with the clamping plate 33, it drives the sliding bar 37 to move downward, causing the limiting block 371 to slide into the horizontal section of the slot 38. After moving downward into place, it is pushed horizontally, causing the limiting block 371 to move into the horizontal section of the slot 38. The horizontal section of the slot 38 limits the limiting block 371, thereby locking the pressing member 35 and preventing it from resetting under the action of the spring II 352. This ensures that the clamping plate 33 maintains a stable clamping state on the guide wire 2, which is suitable for scenarios where the guide wire 2 needs to be clamped for a long time. When it is necessary to release the clamp, push the sliding bar 37 forward to slide the limiting block 371 out of the horizontal section of the slot 38, releasing the lock on the pressing member 35. The pressing member 35 will then automatically reset under the action of the spring II 352. The operation is simple and requires no additional tools.

[0045] like Figure 6The angle adjustment mechanism 7 shown is located at one end of the housing 1 and is used to adjust the angle of the guidewire 2 to adapt to different puncture needs during surgery. A sealing block 13 is detachably connected to one end of the housing 1. The sealing block 13 is made of medical-grade material, facilitating disassembly and sterilization. The connection between the sealing block 13 and the housing 1 is sealed to prevent blood, contrast agents, etc., from entering the housing 1 during surgery, thus avoiding contamination or damage to internal components. A support ring 14 is fixedly connected to the side of the sealing block 13 near the housing 1. The support ring 14 is made of rigid medical-grade material and serves to support the rotating ring 71. The outer wall of the support ring 14 is smoothed to reduce friction during rotation of the rotating ring 71. The rotating ring 71 is rotatably fitted onto the support ring 14. The fit between the rotating ring 71 and the support ring 14 is reasonable, ensuring that the rotating ring 71 can rotate flexibly around the support ring 14 without jamming. The rotating ring 71 is used to install the U-shaped clamping block 75 and the push rod 77, and drives them to rotate synchronously, thereby adjusting the angle of the guidewire 2.

[0046] like Figure 7 The inner wall of the rotating ring 71 shown is provided with a U-shaped clamping block 75 by a fixed connection. The U-shaped clamping block 75 is made of elastic medical material (medical polyurethane), which has good elastic deformation ability. Its opening width in its natural state is adapted to the diameter of the guide wire 2, which can form a slight clamping on the guide wire 2, which can facilitate the passage of the guide wire 2 and initially fix the position of the guide wire 2. A push rod 77 is slidably provided through the top of the rotating ring 71. The push rod 77 is made of rigid medical material and has a clearance fit with the rotating ring 71 to ensure that the push rod 77 can slide smoothly. The top of the push rod 77 is treated with anti-slip treatment to facilitate the pressing and turning operation of medical staff. The push rod 77 is used to drive the push plate 76 to move, realize the clamping and releasing of the guide wire 2 by the U-shaped clamping block 75, and at the same time drive the rotating ring 71 to rotate, realize the angle adjustment of the guide wire 2.

[0047] The output end of the push rod 77 is fixedly connected to a push plate 76 located inside the rotating ring 71. The push plate 76 is made of flexible medical material (medical silicone) to avoid damage to the U-shaped clamping block 75 and guide wire 2 during compression. The push plate 76 works in conjunction with the U-shaped clamping block 75. By moving the push plate 76 downward, it compresses the inner side of the U-shaped clamping block 75, causing the U-shaped clamping block 75 to undergo elastic deformation and narrow its opening. This forms a stable clamp on the guide wire 2 passing through the U-shaped clamping block 75, ensuring that the guide wire 2 does not slip during angle adjustment. After the clamp is secure, moving the push rod 77 will cause the rotating ring 71 to rotate around the support ring 14. The rotating ring 71 drives the U-shaped clamping block 75 and guide wire 2 to rotate synchronously, thereby driving the guide wire 2 to rotate and adjust its angle, which can meet the needs of guide wire 2 puncture at different angles during interventional surgery.

[0048] This device also includes an angle feedback component, which provides angle adjustment feedback for the guidewire 2 to medical personnel, facilitating precise angle adjustment during blind operation. The angle feedback component includes a toothed ring 72 fixedly sleeved on the outer wall of the rotating ring 71. The toothed ring 72 is made of rigid medical material, with teeth evenly distributed on its outer wall. The toothed ring 72 rotates synchronously with the rotating ring 71, working in conjunction with the spring 74 to achieve the feedback function. A fixed seat 73 is fixedly connected to the top of the sealing block 13. The fixed seat 73 is made of rigid medical material, providing stable installation support for the spring 74. The spring 74 is fixedly connected to the top of the fixed seat 73. The spring 74 is made of high-elasticity manganese steel, possessing good elasticity and wear resistance. Its elastic rebound generates a vibration amplitude of 0.5-1mm and a sound frequency of 200-300Hz, effectively avoiding the operating noise of surgical instruments and equipment vibration frequencies, ensuring that medical personnel can clearly perceive vibration and sound feedback. One end of the spring 74 is located inside one of the teeth on the toothed ring 72, and fits tightly with the tooth. Utilizing the elasticity of the spring 74, when the toothed ring 72 rotates, one end of the spring 74 will pass over each tooth on the toothed ring 72 in sequence. Each time it passes over a tooth, the spring 74 will elastically rebound once. A medical silicone sealing ring is embedded in the mating gap between the rotating ring 71 and the support ring 14. The contact surfaces of the toothed ring 72 and the spring 74 are coated with a medical anti-stick fluorine coating to prevent body fluid from entering the mating gap and causing jamming, while ensuring the contact feedback effect between the spring 74 and the toothed ring 72.

[0049] When the rotating ring 71 drives the toothed ring 72 to rotate, one end of the spring 74 will sequentially pass over each tooth on the toothed ring 72. Each time it passes over a tooth, the spring 74 will elastically rebound, generating a slight mechanical vibration and emitting a crisp sound. This sound is clearly perceptible to medical staff without affecting the surgical procedure. Since the angle between two adjacent teeth of the toothed ring 72 is fixed, the guidewire 2 will rotate at a fixed angle each time the spring 74 passes over a tooth. Medical staff do not need to look down to observe the guidewire 2; they can accurately grasp the rotation angle of the guidewire 2 simply by sensing the vibration in their palm and hearing the sound. This enables precise blind operation and control, solving the drawbacks of estimating the angle by feel in traditional surgery.

[0050] The length feedback component is used to provide medical staff with feedback on the feed length of the guidewire 2, so that medical staff can accurately grasp the feed distance when operating blindly. The length feedback component includes a rack 4 fixed to the top of the housing 1. The rack 4 is made of rigid medical material and has teeth evenly distributed on its top. The rack 4 is set parallel to the mounting groove 11 and is used to cooperate with the positioning pin 310 to realize the feedback function. One of the sliding seats 31 has a locating pin 310 that slides through one side and works with the rack 4. The locating pin 310 is made of rigid medical material. One end of the pin has a toothed structure that matches the teeth of the rack 4. The teeth fully mesh with the rack 4. The other end of the locating pin 310 is designed for easy operation, allowing medical staff to adjust it manually. The locating pin 310 works with the rack 4 to provide feedback and positioning for the feed length. The meshing surfaces of the rack 4 and the locating pin 310 are coated with a medical anti-sticking fluorine coating to prevent blood, contrast agents, and other bodily fluids from sticking together, ensuring smooth meshing of the teeth and accurate vibration feedback. The vibration amplitude generated by the meshing of the locating pin 310 and the rack 4 is 0.3 mm, and the vibration frequency is 150 Hz. It is not affected by external vibrations in the surgical environment, ensuring that the feedback signal perceived by the medical staff is accurate and effective.

[0051] A tension spring II 311 is fitted on the outer wall of the positioning pin 310. The tension spring II 311 is a tension spring made of the same material as tension spring I 34. Both ends of tension spring II 311 are fixedly connected to the inner side of the sliding seat 31 and the other end of the positioning pin 310 respectively via hooks. Utilizing the tension of the spring itself, one end of the positioning pin 310 is always engaged with the teeth of the rack 4, preventing disengagement and ensuring accurate feedback. When the sliding seat 31 is pushed to slide along the mounting groove 11, the positioning pin 310 moves sequentially along the teeth of the rack 4. Each time it moves one tooth pitch, the positioning pin 310 engages with the next tooth under the action of tension spring II 311, generating a slight vibration. Medical personnel can perceive this vibration feedback through their palms, allowing them to accurately control the advance or retraction length of the guidewire 2, achieving precise feeding of the guidewire 2 and meeting the needs of precise control of the guidewire 2 during interventional surgery.

[0052] This device is a reusable medical instrument. The sliding mating surfaces of guide rod I123, guide rod II32, and guide rod III353, as well as the rotating mating surfaces of rotating ring 71 and support ring 14, need to be lubricated with sterile medical silicone oil every 10 uses. Metal parts such as rack 4, gear ring 72, and positioning pin 310 can be sterilized by high-temperature and high-pressure steam sterilization or soaking in medical disinfectant. After sterilization, rinse with sterile distilled water and air dry, then apply sterile medical silicone oil for future use.

[0053] The actual operation process of this device is as follows: Before the operation, all components of the device are thoroughly disinfected to ensure a sterile state. After disinfection, the guide wire 2 is passed sequentially through the U-shaped clamping block 75 in the rotating ring 71, the gap between the two clamping plates 33, and the gap between the auxiliary roller 5 and the active roller 6. The position of the guide wire 2 is adjusted so that it is in the center of each clamping structure to ensure stable clamping.

[0054] When it is necessary to quickly advance the guidewire 2, the medical staff pushes the active roller 6 to rotate with their fingers. Under the action of the spring I124, the active roller 6 and the auxiliary roller 5 move closer to each other. Using the friction between the two and the guidewire 2, the guidewire 2 is pushed to move quickly. The sliding block 122 will slide adaptively along the guide rod I123 as the guidewire 2 moves, ensuring that the clamping gap is always in contact with the guidewire 2 and there is no slippage.

[0055] When precise control of the feed length of guidewire 2 is required, press down on the pressing member 35 to push the two clamping plates 33 to hold guidewire 2, then push the sliding bar 37 to make the limiting block 371 slide into the slot 38 to lock the pressing member 35. Then push the sliding seat 31 to slide along the mounting groove 11. The positioning pin 310 cooperates with the rack 4 and generates a vibration feedback once every fixed distance. Medical staff can accurately control the feed length of guidewire 2 according to the number of vibrations. After reaching the preset length, stop pushing the sliding seat 31.

[0056] When it is necessary to adjust the angle of guidewire 2, press down on push rod 77 to make U-shaped clamping block 75 hold guidewire 2. Then, move push rod 77 to drive rotating ring 71 to rotate around support ring 14. Spring 74 and toothed ring 72 cooperate to generate a vibration and sound feedback every time the fixed angle is rotated. Medical staff can accurately adjust the angle of guidewire 2 according to the feedback. After the angle is adjusted to the right position, release push rod 77 and U-shaped clamping block 75 will elastically return to its original position to keep the angle of guidewire 2 stable.

[0057] During the procedure, when medical staff need to operate other instruments with both hands, they can clamp the guidewire 2 using the clamp 33 or the U-shaped clamping block 75, eliminating the need for manual gripping and preventing displacement of the guidewire 2. After the procedure, the locking assembly and all clamping structures are released, the guidewire 2 is removed, the sealing block 13 is disassembled, and all components of the device are cleaned and disinfected for future use.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A cardiovascular guidewire clamping interventional auxiliary device, characterized in that, The device includes a housing (1), an auxiliary roller (5) rotatably mounted inside the housing (1), and a support base (12) fixedly connected to the housing (1). A sliding block (122) for rotatably mounting an active roller (6) is slidably provided on the support base (12). The active roller (6) and the auxiliary roller (5) cooperate to clamp the guide wire (2). A precision feeding mechanism (3) is provided in the mounting groove (11) opened at the top of the housing (1). It includes two sliding seats (31) symmetrically arranged in the mounting groove (11) via guide rails, two clamping plates (33) slidably connected laterally to the inner side of the sliding seats (31), and a pressing member (35) slidably connected longitudinally to the upper side of the clamping plate (33). Pressing the pressing member (35) downward can drive the clamping plate (33) to move inward to clamp the guide wire (2), thereby realizing the precision feeding of the guide wire (2). An angle adjustment mechanism (7) is provided at one end of the housing (1) away from the active roller (6). It includes a rotating ring (71), a U-shaped clamping block (75), a push rod (77) and a push plate (76). The U-shaped clamping block (75) is fixed to the inner wall of the rotating ring (71). The push rod (77) is slidably disposed on the top of the rotating ring (71). The push plate (76) is fixed to the output end of the push rod (77) and located inside the rotating ring (71). When the push rod (77) is pressed down, it drives the U-shaped clamping block (75) to deform and clamp the guide wire (2). Moving the push rod (77) can drive the rotating ring (71) to rotate, thereby driving the guide wire (2) to rotate and adjust the angle.

2. The cardiovascular guidewire clamping interventional auxiliary device according to claim 1, characterized in that, The support base (12) has a rectangular through hole (121) at the top. Two guide rods I (123) are fixedly connected inside the rectangular through hole (121). The sliding block (122) is slidably sleeved on the two guide rods I (123). A spring I (124) is sleeved on the outer wall of the guide rod I (123). The two ends of the spring I (124) abut against one side of the sliding block (122) and the inner wall of one side of the rectangular through hole (121), respectively. The sliding block (122) is pushed by the elastic force of the spring I (124), so that the active roller (6) and the auxiliary roller (5) are always in contact with the guide wire (2).

3. The cardiovascular guidewire clamping interventional auxiliary device according to claim 1, characterized in that, Two guide rods II (32) are slidably arranged through one side of the sliding seat (31). The clamping plate (33) is fixedly connected to one end of the two guide rods II (32). A tension spring I (34) is sleeved on the outer wall of the guide rods II (32). The two ends of the tension spring I (34) are fixedly connected to the sides of the sliding seat (31) and the clamping plate (33) that are close to each other. A groove (331) adapted to the guide wire (2) is opened on the inner side of the clamping plate (33). The groove (331) can increase the contact area with the guide wire (2). The tension spring I (34) can drive the clamping plate (33) to reset.

4. The cardiovascular guidewire clamping interventional auxiliary device according to claim 3, characterized in that, The bottom of the pressing component (35) is provided with a mounting hole (351). A guide rod (353) is slidably arranged in the mounting hole (351). A spring (352) is provided in the mounting hole (351). The two ends of the spring (352) abut against the top of the mounting hole (351) and the top of the guide rod (353) respectively. The guide rod (353) is fixedly connected to the top of the corresponding sliding seat (31). A wedge (312) is fixedly connected to the bottom of the pressing component (35). The top of the clamping plate (33) is provided with an inclined surface (332) that cooperates with the wedge (312). When the pressing component (35) is pressed, the wedge (312) converts the pressing force into the clamping force of the clamping plate (33) through the guiding effect of the inclined surface (332), so as to realize the quick clamping of the guide wire (2).

5. The interventional device for clamping guidewires in cardiovascular medicine according to claim 4, characterized in that, It also includes a locking component, which includes a guide seat (36) fixedly connected to one end of the pressing member (35). A sliding strip (37) is slidably sleeved on the guide seat (36). An L-shaped slot (38) is opened on one side of one of the sliding seats (31). A limit block (371) is fixedly connected to the bottom end of the sliding strip (37). The limit block (371) is slidably disposed in the slot (38). Pushing the sliding strip (37) can cause the limit block (371) to be inserted into the transverse section of the slot (38) to lock the position of the pressing member (35).

6. The interventional device for clamping guidewires in cardiovascular medicine according to claim 1, characterized in that, The outer end of the housing (1) is detachably connected to a sealing block (13) by a thread. A support ring (14) is fixedly connected to the side of the sealing block (13) near the housing (1). The rotating ring (71) is rotatably sleeved on the support ring (14). The support ring (14) provides stable support for the rotating ring (71). The sealing block (13) is detachable, which facilitates the cleaning and disinfection of the device and avoids surgical contamination.

7. The cardiovascular guidewire clamping interventional auxiliary device according to claim 6, characterized in that, It also includes an angle feedback component, which includes a toothed ring (72) fixedly sleeved on the outer wall of the rotating ring (71), a fixed seat (73) fixedly connected to the top of the sealing block (13), and a spring (74) fixedly connected to the top of the fixed seat (73). One end of the spring (74) is stuck in the tooth of the toothed ring (72). When the rotating ring (71) drives the toothed ring (72) to rotate, the guide wire (2) rotates 1° for each tooth the spring (74) passes. Medical staff can accurately grasp the rotation angle of the guide wire (2) through the vibration and sound feedback of the spring (74).

8. The interventional device for clamping guidewires in cardiovascular medicine according to claim 5, characterized in that, It also includes a length feedback component, which includes a rack (4) fixedly connected to the top of the housing (1). A positioning pin (310) that meshes with the rack (4) is slidably disposed on one side of a sliding seat (31). A tension spring II (311) is sleeved on the outer wall of the positioning pin (310). The two ends of the tension spring II (311) are fixedly connected to the inner side of the sliding seat (31) and the other end of the positioning pin (310), respectively. When the sliding seat (31) slides, the positioning pin (310) moves along the teeth of the rack (4) and generates vibration feedback. Medical staff can control the feed length of the guide wire (2) by the number of vibrations.

9. The interventional device for clamping guidewires in cardiovascular medicine according to claim 1, characterized in that, Both the auxiliary roller (5) and the active roller (6) are made of flexible medical material and have anti-slip textures on their surfaces to increase friction with the guidewire (2) while avoiding damage to the hydrophilic coating on the surface of the guidewire (2).

10. The cardiovascular guidewire clamping interventional auxiliary device according to claim 1, characterized in that, The U-shaped clamping block (75) is made of elastic medical material, and the push plate (76) is made of flexible medical material.

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