Guide wire insertion auxiliary device

Abstract

The invention discloses a guide wire insertion assisting device, and particularly relates to the technical field of guide wire insertion assisting. The auxiliary device comprises a clamping part and a handheld part arranged at the bottom of the clamping part, the clamping part comprises a shell, the guide wire penetrates through the shell, a mounting cavity is formed in the shell, two clamping assemblies are arranged in the mounting cavity, the guide wire is located between the two clamping assemblies and used for driving the clamping assemblies to advance and retreat, the supporting assembly comprises a supporting box, and the top of the supporting box is open. And the handheld part can be conveniently inserted into the supporting box and is used for supporting the assistor. The auxiliary guide wire does not move synchronously along with the guide wire while being inserted, a doctor can have a rest conveniently in an operation so as to reduce fatigue, and the operation efficiency and the success rate can be improved.

Description

Technical Field

[0001] This invention relates to the field of guidewire insertion assistance technology, and more specifically to a guidewire insertion assistance device. Background Technology

[0002] Neurointerventional surgery is a minimally invasive treatment for neurological diseases. It involves delivering medications or instruments into the nervous system via catheters / guidewires, allowing for precise treatment under image guidance. Compared to open surgery, it is safer and more effective, reducing pain and recovery time, and is suitable for various neurological disorders such as cerebrovascular diseases and spinal cord lesions. In neurointerventional surgery, the guidewire is primarily advanced, rotated, or retracted to enter the vascular access. Clinically, this can be performed manually or with the aid of auxiliary devices such as torque controllers. Among these, the torque controller has become a widely used device due to its simple structure. However, long-term clinical application of the torque controller has revealed several shortcomings: First, the torque controller needs to be clamped onto the guidewire from the front or side. During the guidewire advancement, the torque controller will move closer to the patient along with the guidewire. When the torque controller is close to the patient, the doctor needs to pause the guidewire advancement, release the torque controller, and then fix the torque controller back onto the guidewire in a suitable position. This process requires repeated disassembly, reassembly, and repositioning, which prolongs the operation time. Secondly, neurowire-guided interventional procedures are typically time-consuming. For challenging access routes, such as those involving small intracranial branch vessels or chronically occluded lesions, repeated adjustments to the guidewire direction are necessary to avoid plaque and branch interference, often taking 40-90 minutes, and even longer in some complex cases. During these extended procedures, surgeons must hold the guidewire for extended periods. Although brief breaks are possible by alternating hand movements to maintain guidewire stability, the hand cannot be completely removed, leading to fatigue. This not only reduces surgical efficiency but also increases surgical risks. Summary of the Invention

[0003] The purpose of this invention is to provide a guidewire insertion assistance device that assists in guidewire insertion without moving synchronously with the guidewire, and allows doctors to rest during the operation to reduce fatigue, thereby improving surgical efficiency and success rate.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a guide wire insertion auxiliary device, comprising an auxiliary device and a support assembly; the auxiliary device includes a clamping part and a hand gripping part disposed at the bottom of the clamping part, the clamping part includes a housing, the guide wire passes through the housing, the housing has an installation cavity inside, and two sets of clamping assemblies are disposed in the installation cavity, the guide wire is located between the two sets of clamping assemblies, for driving the clamping assemblies to move forward and backward.

[0005] The support assembly includes a support box with an opening at the top, allowing the hand grip to be inserted into the support box for supporting the aid.

[0006] Preferably, the clamping assembly includes a clamping wheel and a support plate rotatably disposed at the bottom of the clamping wheel. A sliding plate is fixed to the bottom end of the support plate, and a threaded rod is inserted through the support plate. Both the sliding plate and the threaded rod are disposed in the mounting cavity, and the threaded rod is rotatably connected to the inner wall of the mounting cavity. The threaded rod is threadedly connected to the sliding plate, and the threads on the two threaded rods have opposite directions of rotation, so that the two sliding plates move in opposite directions. Both the front and rear sides of the outer shell have openings communicating with the mounting cavity. The clamping wheel and the support plate are disposed in the mounting cavity, and the clamping wheel and the support plate extend out of the outer shell through the openings.

[0007] Preferably, the clamping wheel includes a rotating rod and a roller fixed on the rotating rod. The roller is rotatably connected to the support plate through the rotating rod, and a rubber sleeve is fixed to the outer wall of the roller.

[0008] Preferably, a movable rod is provided at the bottom of the mounting cavity, and one end of the movable rod near the clamping assembly is connected to two threaded rods to drive the threaded rods to rotate, thereby driving the two clamping wheels to move closer or further apart, so as to clamp or release the guide wire between the two clamping wheels; each side of the two slide plates is provided with a limiting plate 1, and all four limiting plates 1 are fixed at the bottom of the mounting cavity. A sliding groove 1 is formed between two adjacent limiting plates 1, and the slide plate is slidably disposed in the sliding groove 1 to guide the movement of the slide plate; two limiting plates 2 are fixed at the bottom of the mounting cavity, and the limiting plate 1 is disposed outside the limiting plate 2. A sliding groove 2 is formed between the two limiting plates 2, and the movable rod is slidably disposed in the sliding groove 2 to guide the movement of the movable rod.

[0009] Preferably, the top of the outer shell has a placement groove 1 and a placement groove 2 located on both sides of the mounting cavity, and the mounting cavity, placement groove 1 and placement groove 2 all extend to the top of the outer shell; the top of the outer shell is hinged with a cover plate covering the top of the mounting cavity, placement groove 1 and placement groove 2, and opening the cover plate facilitates the placement of the guide wire into placement groove 1 and placement groove 2, and multiple ball bearings for supporting the guide wire are fixed on the inner wall of placement groove 1 and placement groove 2.

[0010] Preferably, the grip includes a handle fixed to the bottom of the outer shell, the handle having an internal cavity, and the bottom of the outer shell having a through cavity, the mounting cavity communicating with the cavity through the through cavity; a slide rod is slidably disposed inside the cavity, a buckle plate is disposed outside the handle, the buckle plate and the slide rod are fixed by a connecting rod, and the connecting rod passes through the handle and is slidably connected to the handle, the slide rod is connected to the inner wall of the cavity by at least one spring; the top end of the slide rod extends through the through cavity into the mounting cavity, and the end of the slide rod and the movable rod away from the clamping assembly are fixed, the movement of the buckle plate can drive the movable rod to move through the slide rod.

[0011] Preferably, the handle is provided with a fixing component for fixing the connecting rod. The fixing component includes a circular shell fixed to the outside of the handle, and a rod is provided inside the circular shell. One end of the rod extends out of the circular shell near the handle, and the other end of the rod is connected to the inner wall of the circular shell by a spring. A pull rod is provided inside the spring. One end of the pull rod is fixed to the other end of the rod, and the other end of the pull rod extends out of the circular shell away from the handle.

[0012] Preferably, the connecting rod has multiple slots on the side near the fixed component, and the handle has a sliding hole communicating with the cavity on the side near the fixed component. One end of the insertion rod passes through the sliding hole and is inserted into one of the slots. One end of the insertion rod is machined into an inclined surface, and the slot is adapted to the one end of the insertion rod.

[0013] Preferably, one side wall of the support box is machined into an inclined surface. When the grip is inserted into the support box, the buckle plate contacts the inclined surface on the support box and drives the buckle plate to move, thereby driving the clamping assembly to clamp the guide wire. The support box has a sliding opening for the fixing assembly to extend out. Both sides of the sliding opening have sliding cavities. The same slider is slidably installed in the two sliding cavities. The slider extends out of the support box through the sliding opening, and the slider is threaded with bolts for fixing the slider, which facilitates the adjustment of the slider height to limit the auxiliary device.

[0014] Preferably, the support component has a clamp at its bottom.

[0015] The technical effects and advantages provided by the present invention in the above technical solution are as follows: 1. The auxiliary device of this device does not move synchronously with the guidewire during the insertion of the guidewire, eliminating the need to repeatedly adjust the position of the auxiliary device on the guidewire during the operation, thus ensuring the continuity of the surgical procedure. At the same time, the doctor can operate the auxiliary device with one hand, while the other hand can simultaneously complete catheter operation, imaging equipment observation, and surgical positioning adjustment, enabling multiple operations to be performed in parallel and improving surgical efficiency.

[0016] 2. This device is equipped with a support component for supporting the assist device. When the surgeon needs to rest during the operation, the assist device can be inserted into the support component for support, which allows the surgeon to rest his hands during long operations, reduces fatigue, and helps improve the success rate of the operation. Meanwhile, on the one hand, during the process of the assist device moving into the support assembly, the clamping wheel loosens and releases the fixation of the guidewire, so that the guidewire will not be pulled when the assist device moves, reducing the risk of guidewire displacement. On the other hand, after the assist device is inserted into the support box, the clamping wheel re-clamps the guidewire, and the clamping force is consistent with that during the surgical operation, so as to achieve support and clamping at the same time, ensuring the stability of the guidewire when the doctor is resting, and further reducing the risk of guidewire displacement. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the present invention mounted on a guidewire; Figure 2 This is an overall structural diagram of the present invention; Figure 3 This is a cross-sectional view of the auxiliary device of the present invention; Figure 4 This is a cross-sectional view of the clamping part of the present invention; Figure 5 This is a structural diagram of the clamping assembly of the present invention; Figure 6 This is a structural diagram of the clamping wheel and support plate of the present invention; Figure 7 This is a cross-sectional view of the outer casing of the present invention; Figure 8 This is a top sectional view of the grip and fixing components of the present invention; Figure 9 This is a structural diagram of the hand grip insertion support assembly of the present invention; Figure 10 This is a cross-sectional view of the support component of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. Auxiliary device; 2. Support assembly; 21. Support box; 22. Slide opening; 23. Sliding cavity; 24. Slider; 3. Clamping part; 31. Outer shell; 32. Mounting cavity; 33. Clamping assembly; 34. Limiting plate one; 35. Slide groove one; 36. Limiting plate two; 37. Slide groove two; 38. Placement groove one; 39. Placement groove two; 310. Movable rod; 311. Cover plate; 312. Through cavity; 331. Clamping wheel; 332. Support plate; 333. Slide plate; 334. Threaded rod; 3311, Rotating rod; 3312, Roller; 3313, Rubber sleeve; 4. Hand grip; 41. Handle; 42. Cavity; 43. Slide rod; 44. Buckle plate; 45. Connecting rod; 46. Spring 1; 47. Slot; 48. Sliding hole; 5. Fixing component; 51. Round shell; 52. Insert rod; 53. Spring II; 54. Pull rod; 6. Fixtures. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0020] This invention provides, for example Figures 1-10The illustrated guide wire insertion auxiliary device includes an auxiliary device 1, which includes a clamping part 3 and a gripping part 4 located at the bottom of the clamping part 3. Specifically, the clamping part 3 includes a housing 31, with an installation cavity 32 inside the housing 31. The top of the housing 31 also has a placement groove 38 and a placement groove 39, located on opposite sides of the installation cavity 32. The installation cavity 32, placement groove 38, and placement groove 39 all extend along the height direction of the housing 31 to its top. A cover plate 311 is provided at the top of the housing 31, which can cover the top openings of the installation cavity 32, placement groove 38, and placement groove 39. One side of the cover plate 311 is hinged to the housing 31 via a hinge, and the other side is snap-fitted to the housing 31 to achieve opening and closing of the cover plate 311.

[0021] When in use, open the cover plate 311 and place the guide wire in the placement groove 38 and placement groove 39 of the outer shell 31. Multiple balls are fixed on the inner walls of the placement groove 38 and placement groove 39. These balls can support the guide wire and reduce the frictional resistance when the guide wire moves, thus facilitating the smooth movement of the guide wire.

[0022] Next, two sets of clamping assemblies 33 are provided in the mounting cavity 32. The guide wire passes between the two sets of clamping assemblies 33. The clamping assembly 33 includes a clamping wheel 331 and a support plate 332 rotatably connected to the bottom of the clamping wheel 331. The front and rear sides of the outer shell 31 are provided with openings that communicate with the mounting cavity 32. The clamping wheel 331 and the support plate 332 are both housed in the mounting cavity 32, and both extend to the outside of the outer shell 31 through the openings.

[0023] Specifically, the clamping wheel 331 includes a rotating rod 3311 and a roller 3312 fixed on the rotating rod 3311. The roller 3312 is rotatably connected to the support plate 332 through the rotating rod 3311, and a rubber sleeve 3313 is fixed on the outer wall of the roller 3312.

[0024] A sliding plate 333 is fixed to the bottom of the support plate 332. A threaded rod 334 is also inserted inside the support plate 332. Both the sliding plate 333 and the threaded rod 334 are located in the mounting cavity 32. The end of the threaded rod 334 is rotatably connected to the inner wall of the mounting cavity 32 through a bearing. The rod body of the threaded rod 334 is threadedly engaged with the sliding plate 333. The threads on the two threaded rods 334 corresponding to the two sets of clamping components 33 have opposite directions of rotation, so as to realize the opposite or opposite movement of the two sliding plates 333.

[0025] A movable rod 310 is provided at the bottom of the mounting cavity 32. One end of the movable rod 310 near the clamping assembly 33 is connected to two threaded rods 334 for driving the threaded rods 334 to rotate. Limiting plates 34 are provided on both sides of the two sliding plates 333. All four limiting plates 34 are fixed to the bottom of the mounting cavity 32. A groove 35 is formed between two adjacent limiting plates 34. The sliding plates 333 slide within the groove 35 to guide the movement direction of the sliding plates 333.

[0026] Furthermore, two limiting plates 36 are fixed at the bottom of the mounting cavity 32. A limiting plate 34 is located on the outside of the limiting plate 36. A sliding groove 37 is formed between the two limiting plates 36. The movable rod 310 is slidably disposed in the sliding groove 37 to guide the movement direction of the movable rod 310.

[0027] The transmission structure between the movable rod 310 and the two threaded rods 334 can take various forms, including but not limited to one structure as exemplified below: the two threaded rods 334 are fixedly connected at their close ends by a connecting shaft, a gear is fixedly sleeved on the connecting shaft, a rack is fixed at the end of the movable rod 310 close to the gear, the rack meshes with the bottom of the gear, and the rack is also slidably disposed in the second slide groove 37.

[0028] When the movable rod 310 moves along the slide groove 37, it drives the rack to move synchronously, which in turn drives the gear and connecting shaft to rotate. The rotation of the connecting shaft drives the two threaded rods 334 to rotate synchronously. Since the threads of the two threaded rods 334 have opposite directions, the rotation of the threaded rods 334 drives the two sliding plates 333 to move towards or away from each other, which in turn causes the clamping wheels 331 of the two sets of clamping components 33 to move closer or further away from each other. When the two clamping wheels 331 move closer to each other, they can clamp and fix the guide wire between them. When the two clamping wheels 331 move further away from each other, they release the clamping and fixing of the guide wire.

[0029] Next, as Figure 1 , Figure 2 , Figure 3 and Figure 8 As shown, the grip portion 4 includes a handle 41 fixed to the bottom end of the outer casing 31. A cavity 42 is formed inside the handle 41, and a corresponding through cavity 312 is formed at the bottom end of the outer casing 31. The mounting cavity 32 communicates with the cavity 42 through the through cavity 312. A sliding rod 43 is slidably disposed inside the cavity 42. A buckle plate 44 is fitted on the outside of the handle 41. The buckle plate 44 and the sliding rod 43 are fixedly connected by a connecting rod 45, which passes through the handle 41 and slides in cooperation with it. At least one spring 46 is connected between the end of the sliding rod 43 and the inner wall of the cavity 42.

[0030] The top end of the slide rod 43 passes through the through cavity 312 and extends into the mounting cavity 32, and the top end of the slide rod 43 is fixedly connected to the end of the movable rod 310 away from the clamping assembly 33. When the doctor holds the handle 41, pressing the buckle plate 44 can drive the slide rod 43 to move synchronously, thereby driving the movable rod 310 to slide along the second slide groove 37 through the slide rod 43.

[0031] To fix the position of the buckle plate 44, a fixing component 5 for fixing the connecting rod 45 is also provided on the handle 41. The fixing component 5 includes a circular shell 51 fixed to the outside of the handle 41. A plug rod 52 is provided inside the circular shell 51. One end of the plug rod 52 extends out of the circular shell 51 near the handle 41, and the other end of the plug rod 52 is connected to the inner wall of the circular shell 51 by a spring 53. A pull rod 54 is provided inside the spring 53. One end of the pull rod 54 is fixed to the other end of the plug rod 52, and the other end of the pull rod 54 extends out of the circular shell 51 away from the handle 41. Multiple slots 47 are provided on the side of the connecting rod 45 near the fixing component 5. A sliding hole 48 communicating with the cavity 42 is provided on the side of the handle 41 near the fixing component 5. One end of the plug rod 52 passes through the sliding hole 48 and is inserted into one of the slots 47. One end of the plug rod 52 is machined into an inclined surface. The inner wall shape of the slot 47 is adapted to the snap-fit ​​end of the plug rod 52 to ensure the stability and smoothness of the snap-fit.

[0032] In use, the doctor first opens the cover plate 311 and places the guidewire in the placement slot 1 38 and placement slot 2 39, simultaneously positioning the guidewire between the two clamping rollers 331. Then, the doctor closes the cover plate 311. Next, the doctor holds the handle 41 with one hand and presses the buckle plate 44 towards the handle 41. The buckle plate 44, through the connecting rod 45, drives the sliding rod 43 to compress the spring 1 46 and move, thereby causing the movable rod 310 to slide, driving the two threaded rods 334 to rotate synchronously. This causes the two sliding plates 333 to move towards each other, bringing the two clamping rollers 331 closer together and clamping the guidewire between them. During this process, the insertion rod 52, under the elastic force of the spring 2 53, automatically engages in the corresponding slot 47 on the connecting rod 45, fixing the position of the buckle plate 44 and maintaining a continuous clamping state on the guidewire. Simultaneously, the rubber sleeve 3313 on the outer wall of the clamping rollers 331 directly contacts the guidewire, effectively preventing damage to the guidewire caused by hard contact.

[0033] In addition, since the clamping force of the guidewire is controlled by the doctor manually pressing the snap plate 44, the clamping force can be flexibly adjusted according to the different thicknesses of the guidewire, making it suitable for use with guidewires of various specifications.

[0034] During the guidewire insertion phase, the surgeon can operate the auxiliary device 1 with one hand. Specifically, the middle, ring, and little fingers of one hand grasp the handle 41, while the thumb and index finger pinch and rotate the two clamping wheels 331. The friction between the clamping wheels 331 and the guidewire drives the guidewire forward or backward. Rotating the entire auxiliary device 1 synchronously rotates the guidewire, thus assisted in guidewire insertion. The auxiliary device 1 of this invention does not move synchronously with the guidewire's advance, eliminating the need for repeated adjustments to its position on the guidewire throughout the procedure. This ensures the continuity of the surgical operation, while the surgeon's other hand can simultaneously perform catheter manipulation, imaging equipment observation, or surgical positioning adjustments, effectively improving surgical efficiency.

[0035] Furthermore, for scenarios involving prolonged surgery, to alleviate hand fatigue for doctors, such as... Figure 1 , Figure 2 , Figure 9 and Figure 10 As shown, the present invention also includes a support component 2, which includes a support box 21. The bottom of the support component 2 is provided with a clamp 6. The clamp 6 can be selected according to the appropriate clamp structure. Its clamping object is not limited to the operating table frame. It only needs to be able to achieve stable fixation of the support component 2. The support box 21 and the clamp 6 can be connected by a damping pivot, a metal shaping hose or other structures, so that the placement angle of the support component 2 can be flexibly adjusted so as not to interfere with the doctor's surgical operation.

[0036] The support box 21 has an opening at the top, and one side wall inside the support box 21 is machined into an inclined surface. The support box 21 has a sliding opening 22 for the fixing component 5 to extend out. The two inner side walls of the sliding opening 22 are provided with sliding cavities 23. The same slider 24 is slidably installed in the two sliding cavities 23. The slider 24 extends out of the support box 21 through the sliding opening 22, and the slider 24 is threaded with a bolt for fixing its position. The doctor can loosen or tighten the bolt to flexibly adjust the height of the slider 24 in the sliding cavity 23, thereby limiting the depth of the auxiliary device 1 inserted into the support box 21.

[0037] Before the guidewire is inserted into the patient's body and after the guidewire and support assembly 2 are fixed, the doctor inserts the handle 4 into the support box 21, so that the side of the handle 41 away from the buckle 44 slides downward against the inner wall of the support box 21. At the same time, the circular shell 51 of the fixing assembly 5 slides downward along the sliding opening 22 until the buckle 44 contacts the inclined surface inside the support box 21, at which point the insertion of the handle 4 is stopped. Then, the slider 24 is moved along the sliding cavity 23 so that the slider 24 abuts against the bottom of the circular shell 51. The bolt on the slider 24 is then tightened to fix the position of the slider 24, thus limiting the depth of the handle 4 inserted into the support box 21. After the limiting is completed, the doctor can remove the auxiliary device 1 and perform the subsequent guidewire insertion operation.

[0038] During the surgical procedure, if the surgeon wishes to rest, they can pull the lever 54 with their other hand, causing the insertion rod 52 to move and disengage from the slot 47 of the connecting rod 45, thus releasing the fixation on the connecting rod 45. At this time, the retaining plate 44, connecting rod 45, sliding rod 43, and movable rod 310 will reset under the elastic force of spring 46, thereby driving the two clamping wheels 331 to move away from each other, releasing the clamping fixation on the guidewire. Subsequently, the surgeon inserts the hand grip 4 of the auxiliary device 1 from top to bottom into the support box 21. The support assembly 2 provides stable support for the auxiliary device 1, allowing the surgeon to remove their hand from the auxiliary device 1 to rest. During this process, since the auxiliary device 1 has been released from the fixation on the guidewire, no pulling force is generated when moving the auxiliary device 1, effectively avoiding the risk of guidewire displacement.

[0039] In practical use, a fixing structure for the handle 41 can be added to the inner wall of the support box 21. The fixing structure includes, but is not limited to, one of the following examples: the handle 41 is designed to be made of metal, and a magnet that can attract the metal handle is fixedly installed on the inner wall of the support box 21. The stability of the auxiliary device 1 placed in the support box 21 is further improved by magnetic attraction.

[0040] Simultaneously, when the grip 4 is inserted into the support box 21, the side of the handle 41 away from the buckle 44 slides downward against the inner wall of the support box 21. The round shell 51 slides down synchronously along the sliding opening 22, while the buckle 44 gradually slides downward along the inclined surface inside the support box 21. Guided by the inclined surface, it moves towards the handle 41, thereby driving the two clamping wheels 331 to approach each other until the round shell 51 abuts against the slider 24 and the grip 4 can no longer be inserted. At this point, the two clamping wheels 331 precisely clamp and fix the guide wire again. Thus, this invention achieves the goal of supporting the auxiliary device 1 while maintaining the same clamping force to fix the guide wire as during the surgical operation. This allows the surgeon to rest their hands during long surgeries, reducing fatigue, while ensuring the stability of the guide wire position and preventing guide wire displacement, thus helping to improve the success rate of the surgery.

[0041] The operation method of this invention is as follows: I. Preoperative preparation: S1: Fix the support box 21 to a suitable position on the operating table frame using the bottom clamp 6, and adjust the angle of the support box 21 to not interfere with the operation; S2. Open the cover plate 311 of the auxiliary device 1, put the guide wire into the placement groove, ensure that the guide wire is between the two clamping wheels 331, and close the cover plate 311 to fasten it. S3. Hold the handle 41 with one hand (middle finger, ring finger, and little finger), press the buckle plate 44 towards the handle 41 until the clamping wheel 331 clamps the guide wire, and release your hand to automatically lock the clamping state. S4. Insert the handle 41 into the support box 21 from top to bottom until the buckle 44 contacts the inclined surface inside the support box 21. Then move the slider 24 until it contacts the round shell 51 and tighten the bolt to fix it. Then take out the auxiliary device 1.

[0042] II. Intraoperative procedures: H1: Maintain the grip position, rotate the two clamping wheels 331 with your thumb and forefinger to drive the guidewire forward and backward, and the rotation auxiliary device 1 can drive the guidewire to rotate. The other hand can perform other surgical operations simultaneously. H2: Intraoperative rest: With the other hand, pull the lever 54 to release the clamping of the guidewire, insert the handle 41 from top to bottom into the support box 21 until the round shell 51 fits against the slider 24. After releasing, the support component 2 will automatically support and re-clamp the guidewire, and the hand can be removed to rest. After the rest is over, take out the auxiliary device 1 and continue the guidewire insertion operation.

Claims

1. A guidewire insertion auxiliary device, characterized in that: Includes an auxiliary device (1) and a support component (2); The auxiliary device (1) includes a clamping part (3) and a hand grip part (4) located at the bottom of the clamping part (3). The clamping part (3) includes a housing (31), and a guide wire passes through the housing (31). The housing (31) has an installation cavity (32) inside, and two sets of clamping components (33) are provided in the installation cavity (32). The guide wire is located between the two sets of clamping components (33) and is used to drive the clamping components (33) to move forward and backward. The support assembly (2) includes a support box (21) with an opening at the top, which facilitates the insertion of the hand grip (4) into the support box (21) for supporting the auxiliary device (1).

2. The guidewire insertion auxiliary device according to claim 1, characterized in that: The clamping assembly (33) includes a clamping wheel (331) and a support plate (332) rotatably disposed at the bottom of the clamping wheel (331). A sliding plate (333) is fixed at the bottom end of the support plate (332), and a threaded rod (334) is passed through the support plate (332). The sliding plate (333) and the threaded rod (334) are both disposed in the mounting cavity (32), and the threaded rod (334) is rotatably connected to the inner wall of the mounting cavity (32). The threaded rod (334) is threadedly connected to the slide plate (333), and the threads on the two threaded rods (334) are turned in opposite directions so that the two slide plates (333) move in opposite directions; The outer shell (31) has openings on both the front and rear sides that communicate with the mounting cavity (32). The clamping wheel (331) and the support plate (332) are both located in the mounting cavity (32), and the clamping wheel (331) and the support plate (332) extend out of the outer shell (31) through the openings.

3. The guidewire insertion auxiliary device according to claim 2, characterized in that: The clamping wheel (331) includes a rotating rod (3311) and a roller (3312) fixed on the rotating rod (3311). The roller (3312) is rotatably connected to the support plate (332) through the rotating rod (3311). A rubber sleeve (3313) is fixed on the outer wall of the roller (3312).

4. The guidewire insertion auxiliary device according to claim 2, characterized in that: The bottom of the mounting cavity (32) is provided with a movable rod (310), and one end of the movable rod (310) near the clamping assembly (33) is connected to two threaded rods (334) to drive the threaded rods (334) to rotate, thereby driving the two clamping wheels (331) to move closer or further away from each other, so as to clamp or release the guide wire between the two clamping wheels (331). Both sides of the two slide plates (333) are provided with limiting plates (34), and the four limiting plates (34) are fixed in the bottom of the mounting cavity (32). A groove (35) is formed between two adjacent limiting plates (34). The slide plate (333) is slidably disposed in the groove (35) to guide the movement of the slide plate (333). Two limiting plates (36) are fixed at the bottom of the mounting cavity (32). The first limiting plate (34) is located outside the second limiting plate (36). A sliding groove (37) is formed between the two limiting plates (36). The movable rod (310) is slidably located in the sliding groove (37) to guide the movement of the movable rod (310).

5. The guidewire insertion auxiliary device according to claim 1, characterized in that: The top of the outer shell (31) is provided with a placement groove 1 (38) and a placement groove 2 (39) located on both sides of the mounting cavity (32), and the mounting cavity (32), placement groove 1 (38) and placement groove 2 (39) all extend to the top of the outer shell (31); The top of the outer shell (31) is hinged with a cover plate (311) that covers the top of the mounting cavity (32), placement slot one (38) and placement slot two (39). Opening the cover plate (311) makes it easy to put the guide wire into placement slot one (38) and placement slot two (39), and multiple ball bearings for supporting the guide wire are fixed on the inner walls of placement slot one (38) and placement slot two (39).

6. The guidewire insertion auxiliary device according to claim 4, characterized in that: The grip (4) includes a handle (41) fixed to the bottom of the outer shell (31), the handle (41) has a cavity (42) inside, the bottom of the outer shell (31) has a through cavity (312), and the mounting cavity (32) communicates with the cavity (42) through the through cavity (312); The cavity (42) is slidably provided with a slide rod (43), and the handle (41) is provided with a buckle plate (44) on the outside. The buckle plate (44) and the slide rod (43) are fixed by a connecting rod (45), and the connecting rod (45) passes through the handle (41) and is slidably connected to the handle (41). The slide rod (43) is connected to the inner wall of the cavity (42) by at least one spring (46). The top end of the slide rod (43) extends through the cavity (312) into the mounting cavity (32), and the slide rod (43) and the movable rod (310) are fixed at the ends away from the clamping assembly (33). The movement of the buckle plate (44) can drive the movable rod (310) to move through the slide rod (43).

7. The guidewire insertion auxiliary device according to claim 6, characterized in that: The handle (41) is provided with a fixing component (5) for fixing the connecting rod (45). The fixing component (5) includes a round shell (51) fixed to the outside of the handle (41). The round shell (51) is provided with a plug rod (52). One end of the plug rod (52) extends out of the round shell (51) near the handle (41), and the other end of the plug rod (52) is connected to the inner wall of the round shell (51) by a spring (53). The inner side of the spring (53) is provided with a pull rod (54). One end of the pull rod (54) is fixed to the other end of the plug rod (52), and the other end of the pull rod (54) extends out of the round shell (51) away from the handle (41).

8. The guidewire insertion auxiliary device according to claim 7, characterized in that: The connecting rod (45) has multiple slots (47) on the side near the fixing component (5), and the handle (41) has a sliding hole (48) communicating with the cavity (42) on the side near the fixing component (5). One end of the insert rod (52) passes through the sliding hole (48) and is inserted into one of the slots (47). One end of the insert (52) is machined into an inclined surface, and the slot (47) is adapted to one end of the insert (52).

9. The guidewire insertion auxiliary device according to claim 7, characterized in that: The inner side wall of the support box (21) is processed into an inclined surface. When the hand grip (4) is inserted into the support box (21), the buckle plate (44) contacts the inclined surface on the support box (21) and drives the buckle plate (44) to move, so as to drive the clamping assembly (33) to clamp the guide wire. The support box (21) has a sliding opening (22) on the outside for the fixing component (5) to extend out. The sliding opening (22) has sliding cavities (23) on both sides of the inner side wall. The same slider (24) is slidably arranged in the two sliding cavities (23). The slider (24) extends out of the support box (21) through the sliding opening (22), and the slider (24) is threaded with bolts for fixing the slider (24), so as to adjust the height of the slider (24) to limit the auxiliary device (1).

10. The guidewire insertion auxiliary device according to claim 1, characterized in that: The support component (2) is provided with a clamp (6) at its bottom.

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