A guidewire delivery device for vascular interventional surgery

Abstract

The present invention proposes a guide wire delivery device for vascular intervention surgery, comprising two fixed supports arranged opposite to each other, a horizontal guide column arranged between the two, a guide wire delivery unit slidably connected to the horizontal guide column, the guide wire delivery unit comprising a sliding frame, a vertical guide column arranged on the sliding frame, an upper and a lower wire pressing conveying mechanism used in cooperation with each other arranged on the vertical guide column, the upper and / or lower wire pressing conveying mechanism can move along a preset track of a rectangle under the action of a driving mechanism, when moving along the two vertical sides of the rectangle, the upper and / or lower wire pressing conveying mechanism moves along the vertical guide column, when moving along the two horizontal sides of the rectangle, the upper and / or lower wire pressing conveying mechanism drives the sliding frame to move along the horizontal guide column; when moving to the left along the horizontal guide column, the two wire pressing conveying mechanisms cooperate to clamp the guide wire to achieve delivery, and when moving to the right along the horizontal guide column, the two wire pressing conveying mechanisms are in a state of releasing the guide wire. The above device can realize linear wire feeding and there is no phenomenon of the guide wire coming out during the wire feeding process.

Description

Technical Field

[0001] The present invention relates to the technical field of vascular intervention surgery auxiliary equipment, and in particular to a vascular intervention surgery guide wire delivery device. Background Art

[0002] Vascular interventional surgery is a method in which doctors, under the guidance of DSA equipment, move guidewires and balloon stents through catheters along blood vessels to accurately reach the lesion for treatment. Traditional vascular interventional surgery is a procedure in which doctors observe the patient's blood vessels through DSA equipment, accurately manipulate the guidewire to move from the puncture site along the human blood vessels to the lesion, and deliver drugs or stents to the site through the guidewire and catheter to achieve minimally invasive treatment.

[0003] In traditional vascular interventional surgery, doctors need to be exposed to radiation for a long time to obtain the patient's vascular imaging information in time. In order to smoothly perform intravascular interventional surgery, the operating doctor needs to wear heavy lead-containing protective clothing to prevent the impact of radiation. At the same time, vascular interventional surgery requires rich clinical experience and superb surgical operation skills. In addition, long-term continuous surgery also poses a great challenge to the doctor's physical strength, which can easily cause fatigue and affect the quality of the surgery.

[0004] The use of intravascular interventional robots can replace doctors in performing intravascular interventional surgeries next to the operating bed, protecting doctors from harm from X-rays. At the same time, it can reduce the learning curve of interventional surgery, improve the situation where traditional interventional surgery is extremely dependent on the doctor's personal experience, and provide more precise operations for vascular interventional surgery.

[0005] When using robots to assist in vascular interventional surgery, using robots to deliver guidewires is one of the most core functions. The operation of guidewires is one of the core contents of vascular interventional surgery and determines the quality of the surgery. At present, the main form of the translational wire feeding mechanism is that the motor drives the active guide wheel to rotate, the driven guide wheel clamps the guide wire, and the main and driven guide wheels roll to achieve the translational movement of the guide wire. During the rolling process of the guide wheel, it is easy to slip and the guide wire slips out of the guide wheel, causing the wire feeding to stagnate. Summary of the invention

[0006] In order to solve the problems existing in the prior art, the present application proposes a guidewire delivery device for vascular interventional surgery, which utilizes the cooperation of two pressure blocks, or the cooperation of a pressure block and a supporting plate to achieve the function of linear wire feeding. Because the contact area of ​​the pressure block is large, there is no phenomenon of the guidewire falling out during the wire feeding process.

[0007] In order to achieve the above-mentioned purpose, the present application proposes a guidewire delivery device for vascular intervention surgery, comprising two fixed brackets arranged relatively to each other, the guidewire can pass through the two fixed brackets, at least two parallel horizontal guide pillars are arranged between the two fixed brackets, and n guidewire delivery units are slidably connected to the horizontal guide pillars, 1≤n≤3, n is an integer, the guidewire delivery unit comprises a sliding frame, the sliding frame is slidably connected to the horizontal guide pillar, the sliding frame is provided with at least two parallel vertical guide pillars, the vertical guide pillars are provided with an upper wire pressing conveying mechanism and a lower wire pressing conveying mechanism used in conjunction with each other, the upper wire pressing conveying mechanism and / or the lower wire pressing conveying mechanism can move along a preset trajectory under the action of a driving mechanism, and the preset trajectory It is a rectangle. When moving along the left and right vertical sides of the rectangle, the upper wire pressing conveying mechanism and / or the lower wire pressing conveying mechanism move along the vertical guide column. When moving along the upper and lower horizontal sides of the rectangle, the upper wire pressing conveying mechanism and / or the lower wire pressing conveying mechanism drive the sliding frame to move along the horizontal guide column. When moving to the left / right along the horizontal guide column, the upper wire pressing conveying mechanism and the lower wire pressing conveying mechanism cooperate with each other to clamp the guide wire to achieve the delivery of the guide wire. When moving to the right / left along the horizontal guide column, the upper wire pressing conveying mechanism and the lower wire pressing conveying mechanism are in a state of releasing the guide wire, and the sliding frame can be moved back to the initial position along the horizontal guide column driven by the upper wire pressing conveying mechanism and / or the lower wire pressing conveying mechanism.

[0008] In some embodiments, when n=2, the phase difference between the two guidewire delivery units is 180°; when n=3, the phases of the three guidewire delivery units differ by 120° respectively.

[0009] In some embodiments, when the structures of the upper wire pressing and conveying mechanism and the lower wire pressing and conveying mechanism are different, the upper wire pressing and conveying mechanism can move along a preset trajectory under the action of a driving mechanism, and the structure of the upper wire pressing and conveying mechanism is as follows: it includes a mounting plate, and the mounting plate is slidably connected to the vertical guide column via a sliding bearing, and the lower end of the mounting plate is provided with a pressing block used in conjunction with the lower wire pressing and conveying mechanism, and the mounting plate is provided with an annular motion track groove, the inner edge of the motion track groove is a tooth surface, and the outer edge is a smooth limiting surface, the driving gear in the driving mechanism is located in the motion track groove, and the driving gear is meshed with the tooth surface, and when the driving gear is driven to rotate in place, the upper wire pressing and conveying mechanism can move along the preset trajectory.

[0010] In some embodiments, when the structures of the upper wire pressing and conveying mechanism and the lower wire pressing and conveying mechanism are different, the upper wire pressing and conveying mechanism can move along a preset trajectory under the action of a driving mechanism, and the structure of the upper wire pressing and conveying mechanism is as follows: it includes a mounting plate, the mounting plate is slidably connected to the vertical guide column, and a pressure block used in conjunction with the lower wire pressing and conveying mechanism is provided at the lower end of the mounting plate. The rotating shaft in the driving mechanism is rotatably connected to the mounting plate, the rotating shaft is slidably connected to the connecting rod, and the connecting rod is fixedly connected to the input shaft. The input shaft can rotate in situ under the drive of the motor. When the input shaft is driven to rotate in situ, the upper wire pressing and conveying mechanism can move along the preset trajectory.

[0011] In some embodiments, the lower wire conveying mechanism includes a supporting plate slidably mounted on the vertical guide column, and a screw is provided on the lower surface of the supporting plate. The screw is threadedly connected to the sliding frame, and the upper and lower positions of the supporting plate can be adjusted by an adjusting nut used in conjunction with the screw to adapt to guide wires of different thicknesses.

[0012] In some embodiments, when the structures of the upper wire pressing and conveying mechanism and the lower wire pressing and conveying mechanism are mirror-symmetrical, the structure of the upper wire pressing and conveying mechanism is as follows: it includes a mounting plate, which is slidably connected to the vertical guide column via a sliding bearing, and the lower end of the mounting plate is provided with a pressing block used in conjunction with the lower wire pressing and conveying mechanism, and the mounting plate is provided with an annular motion track groove, the inner edge of the motion track groove is a tooth surface, and the outer edge is a smooth limiting surface, the driving gear in the driving mechanism is located in the motion track groove, and the driving gear is meshed with the tooth surface, and when the driving gear is driven to rotate in place, the upper wire pressing and conveying mechanism can move along a preset trajectory.

[0013] In some embodiments, when the structures of the upper wire pressing and conveying mechanism and the lower wire pressing and conveying mechanism are mirror-symmetrical, the structure of the upper wire pressing and conveying mechanism is as follows: it includes a mounting plate, the lower end of the mounting plate is fixed on a slide plate, the slide plate is slidably connected to the vertical guide column, a pressure block is provided on the lower surface of the slide plate, a through hole is provided in the mounting plate, an elliptical gear is provided at the through hole, the elliptical gear is fixed to the slide plate via connecting ribs, a motion track is formed between the elliptical gear and the through hole, the driving gear in the driving mechanism is located in the motion track, and the driving gear is meshed with the elliptical gear, and when the driving gear is driven to rotate in place, the upper wire pressing and conveying mechanism can move along a preset trajectory.

[0014] In some embodiments, when the structures of the upper wire pressing and conveying mechanism and the lower wire pressing and conveying mechanism are mirror-symmetrical, the structure of the upper wire pressing and conveying mechanism is as follows: it includes a mounting plate, the mounting plate is slidably connected to the vertical guide column, and a pressure block used in conjunction with the lower wire pressing and conveying mechanism is provided at the lower end of the mounting plate. The rotating shaft in the driving mechanism is rotatably connected to the mounting plate, the rotating shaft is slidably connected to the connecting rod, and the connecting rod is fixedly connected to the input shaft. The input shaft can rotate in situ under the drive of the motor. When the input shaft is driven to rotate in situ, the upper wire pressing and conveying mechanism can move along a preset trajectory.

[0015] The beneficial effect of the scheme of the present application lies in the above-mentioned vascular interventional surgery guide wire delivery device, which utilizes the cooperation of two pressure blocks, or the cooperation of a pressure block and a supporting plate, to achieve the function of linear wire feeding. Since the contact area of ​​the pressure block is large, there is no phenomenon of the guide wire falling out during the wire feeding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a guidewire delivery device for vascular intervention surgery in a first embodiment is shown.

[0017] Figure 2 Shows Figure 1 Schematic diagram of the structure from another angle.

[0018] Figure 3 (a) shows the state diagram of the guide wire delivery unit clamping the guide wire and preparing for wire feeding, (b) shows the state diagram of the guide wire delivery unit completing wire feeding and about to release the guide wire, (c) shows the state diagram of the guide wire delivery unit about to return to its position and clamp the guide wire again, and (d) shows a line diagram of one movement cycle of the upper wire pressing and conveying mechanism.

[0019] Figure 4 A schematic structural diagram of a guidewire delivery device for vascular intervention surgery in a second embodiment is shown.

[0020] Figure 5 (a) to (f) show the motion state diagrams when the connecting rod rotates counterclockwise by 0°, 30°, 90°, 150°, 210° and 330° with the input shaft as the center.

[0021] Figure 6 A schematic structural diagram of a guidewire delivery device for vascular intervention surgery in a third embodiment is shown.

[0022] Figure 7 A schematic structural diagram of a guidewire delivery device for vascular intervention surgery in a fourth embodiment is shown.

[0023] Figure numerals: 1-fixed bracket, 101-wire guide groove, 2-horizontal guide column, 3-wire guide delivery unit, 31-sliding frame, 3101-top plate, 3102-bottom plate, 3103-left vertical plate, 3104-right vertical plate, 3105-wire guide groove, 3106-cross plate, 3107-guide groove, 32-vertical guide column, 33-upper wire pressing conveying mechanism, 3301-mounting plate, 3302-sliding bearing, 3303-pressing Block, 3304-motion track groove, 3305-tooth surface, 3306-limiting surface, 3307-slide plate, 3308-through hole, 3309-elliptical gear, 33010-connecting rib, 34-down wire conveying mechanism, 3401-carrying plate, 3402-screw, 3403-adjusting nut, 4-driving mechanism, 401-driving gear, 402-rotating shaft, 403-connecting rod, 404-input shaft, A-guide wire. DETAILED DESCRIPTION

[0024] The specific implementation of the present application is further described below in conjunction with the accompanying drawings.

[0025] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] like Figure 1As shown, the vascular interventional surgery guidewire delivery device involved in the present application includes two relatively arranged fixed brackets 1, and the guidewire A can pass through the two fixed brackets 1. Specifically, a guidewire groove 101 can be provided on the fixed bracket 1, and the guidewire groove 101 can be a V-shaped groove. At least two parallel horizontal guide pillars 2 are provided between the two fixed brackets 1, and n guidewire delivery units 3 are slidably connected to the horizontal guide pillars 2, 1≤n≤3, and n is an integer. The guidewire delivery unit 3 includes a sliding frame 31, and the sliding frame 31 is slidably connected to the horizontal guide pillar 2. Specifically, the The sliding frame 31 includes a top plate 3101 and a bottom plate 3102, and a left vertical plate 3103 and a right vertical plate 3104 are arranged opposite to each other between the top plate 3101 and the bottom plate 3102. The left vertical plate 3103 and the right vertical plate 3104 are slidably connected to the horizontal guide column 2, and the guide wire A can pass through the left vertical plate 3103 and the right vertical plate 3104. Specifically, the left vertical plate 3103 and the right vertical plate 3104 are both provided with a guide wire groove 3105. The sliding frame 31 is provided with at least two parallel vertical guide columns 32, that is, inside the sliding frame 31, the top plate 3101 At least two parallel vertical guide pillars 32 are provided between the bottom plate 3102, and an upper wire pressing conveying mechanism 33 and a lower wire pressing conveying mechanism 34 are provided on the vertical guide pillars 32 for use in conjunction with each other. The upper wire pressing conveying mechanism 33 and / or the lower wire pressing conveying mechanism 34 can move along a preset trajectory under the action of the driving mechanism 4, and the preset trajectory is rectangular. When moving along the left and right vertical sides of the rectangle, the upper wire pressing conveying mechanism 33 and / or the lower wire pressing conveying mechanism 34 move along the vertical guide pillars 32, and when moving along the upper and lower horizontal sides of the rectangle, the upper wire pressing conveying mechanism 33 and / or the lower wire pressing conveying mechanism 34 move along the vertical guide pillars 32. The wire pressing and conveying mechanism 33 and / or the lower wire pressing and conveying mechanism 34 drive the sliding frame 31 to move along the horizontal guide column 2; when moving to the left / right along the horizontal guide column 2, the upper wire pressing and conveying mechanism 33 and the lower wire pressing and conveying mechanism 34 cooperate with each other to clamp the guide wire A to achieve the delivery of the guide wire A; when moving to the right / left along the horizontal guide column 2, the upper wire pressing and conveying mechanism 33 and the lower wire pressing and conveying mechanism 34 are in a state of releasing the guide wire A, and the sliding frame 31 can be moved back to its initial position along the horizontal guide column 2 driven by the upper wire pressing and conveying mechanism 33 and / or the lower wire pressing and conveying mechanism 34.

[0027] Example 1

[0028] like Figures 1 to 3As shown, in this embodiment, the structures of the upper wire pressing conveying mechanism 33 and the lower wire pressing conveying mechanism 34 are different. When the upper wire pressing conveying mechanism 33 can move along a preset track under the action of a driving mechanism, the structure of the upper wire pressing conveying mechanism 33 is as follows: it includes a mounting plate 3301, the front surface of the mounting plate 3301 is slidably connected to the vertical guide column 32 via a sliding bearing 3302, and the lower end of the mounting plate 3301 is provided with a pressing block 3303 used in conjunction with the lower wire pressing conveying mechanism 34, The rear surface of the mounting plate 3301 is provided with an annular motion track groove 3304, the inner edge of the motion track groove 3304 is a tooth surface 3305, and the outer edge is a smooth limiting surface 3306. The driving gear 401 in the driving mechanism 4 is located in the motion track groove 3304, and the driving gear 401 is meshed with the tooth surface 3305. When the driving gear 401 is driven to rotate in place, for example, by a motor, the upper wire pressing conveying mechanism 33 can move along a preset trajectory.

[0029] The lower pressing wire conveying mechanism 34 includes a bearing plate 3401 slidably mounted on the vertical guide column 32, a screw rod 3402 is provided on the lower surface of the bearing plate 3401, and the screw rod 3402 is threadedly connected to the slide frame 31. The upper and lower positions of the bearing plate 3401 can be adjusted by an adjusting nut 3403 used in conjunction with the screw rod 3402 to adapt to guide wires A of different thicknesses. Specifically, the adjusting nut 3403 is threadedly connected to the screw rod 3402, and the adjusting nut 3403 is rotatably connected to the slide frame 31, so that the adjusting nut 3403 can rotate in situ.

[0030] In the specific use process, the position of the carrier plate 3401 is adjusted according to the thickness of the guide wire A, so that the guide wire delivery unit 3 clamps the guide wire A. Figure 3As shown in (a), the driving gear 401 is then driven to rotate in situ, so that the upper wire pressing and conveying mechanism 33 moves to the right along the horizontal side of the rectangle at the bottom. At this time, the pressing block 3303 cooperates with the supporting plate 3401 to clamp the guide wire A, realizing the simulation of a human hand holding the guide wire A for delivery, that is, the process from 3(a) to 3(b). During the movement, the upper wire pressing and conveying mechanism 33 drives the slide frame 31 to move to the right along the horizontal guide column 2. In particular, the driving gear 401 can be designed to rotate one circle to complete the process from 3(a) to 3(b). Then, the driving gear 401 is driven to continue rotating, for example, to rotate one circle, to realize the process from 3(b) to 3(c). During this process, the upper wire pressing and conveying mechanism 33 first moves upward along the vertical side of the rectangle on the right, and then moves a part to the left along the horizontal side of the rectangle on the top, so that the upper wire pressing and conveying mechanism 33 first moves upward along the vertical guide column 32, and then drives the sliding frame 31 to move to the left along the horizontal guide column 2. During this process, the pressing block 3303 is separated from the supporting plate 3401, and the guide wire A is in a stationary state. Then, the driving gear 401 is driven to continue rotating, for example, to rotate one circle, to realize the process from 3(c) to 3(a). During this process, the upper wire pressing and conveying mechanism 33 first continues to move to the left along the upper horizontal side of the rectangle, and then moves downward along the left vertical side of the rectangle, so that the upper wire pressing and conveying mechanism 33 first drives the slide frame 31 to move to the left along the horizontal guide column 2, and then moves downward along the vertical guide column 32. At this time, the slide frame 31 and the upper wire pressing and conveying mechanism 33 both return to their initial positions. During this process, the pressing block 3303 and the supporting plate 3401 change from a separated state to a mutually cooperating state of clamping the guide wire A. The line diagram of one movement cycle of the upper wire pressing and conveying mechanism 33 is shown in FIG. Figure 3 By repeating the above control operation, the guide wire A can be delivered.

[0031] When the guidewire delivery device for vascular interventional surgery includes one guidewire delivery unit 3, intermittent delivery of the guidewire A can be achieved; when the guidewire delivery device for vascular interventional surgery includes two guidewire delivery units 3, the phase difference between the two guidewire delivery units 3 is 180°, so that intermittent delivery of the guidewire A can be achieved, and the intermittent time is short and the wire feeding efficiency is high; when the guidewire delivery device for vascular interventional surgery includes three guidewire delivery units 3, the phases of the three guidewire delivery units 3 differ by 120° respectively, so that continuous delivery of the guidewire A can be achieved.

[0032] Of course, the guidewire delivery device for vascular intervention surgery in Example 1 can be rotated 180° clockwise as a whole. At this time, the downward pressing wire delivery mechanism 34 can move along a preset trajectory under the action of the driving mechanism.

[0033] Example 2

[0034] like Figures 4-5 As shown, in the present embodiment, the structures of the upper wire pressing and conveying mechanism 33 and the lower wire pressing and conveying mechanism 34 are different. When the upper wire pressing and conveying mechanism 33 can move along a preset trajectory under the action of the driving mechanism, the structure of the upper wire pressing and conveying mechanism 33 is as follows: it includes a mounting plate 3301, and the mounting plate 3301 is slidably connected to the vertical guide column 32. A pressing block 3303 used in conjunction with the lower wire pressing and conveying mechanism 34 is provided at the lower end of the mounting plate 3301. The rotating shaft 402 in the driving mechanism 4 is rotatably connected to the mounting plate 3301, and the rotating shaft 402 is slidably connected to the connecting rod 403 (since the stroke of the upper wire pressing and conveying mechanism 33 is limited, this design can be made, and the connecting rod 403 will not separate from the rotating shaft 402). The connecting rod 403 is fixedly connected to the input shaft 404, and the input shaft 404 can rotate in situ under the drive of the motor. When the input shaft 404 is driven to rotate in situ, the upper wire pressing and conveying mechanism 33 can move along the preset trajectory. In this embodiment, a transverse plate 3106 may be further provided in the sliding frame 31 , and a guide groove 3107 adapted to the pressing block 3303 is provided on the transverse plate 3106 .

[0035] The structure of the lower pressing wire conveying mechanism 34 is the same as that in Embodiment 1, and will not be described in detail here.

[0036] In the specific use process, the position of the carrier plate 3401 is adjusted according to the thickness of the guide wire A, and then the input shaft 404 is driven to rotate in place, such as Figure 5 As shown, the upper wire pressing and conveying mechanism 33 is moved along each side of the rectangle. During this process, when the upper wire pressing and conveying mechanism 33 moves along the horizontal side of the rectangle at the bottom, the pressing block 3303 cooperates with the carrying plate 3401 to clamp the guide wire A, realizing the simulated human hand holding the guide wire A for delivery. As the input shaft 404 continues to rotate, the slide frame 31 can be moved back to the initial position driven by the upper wire pressing and conveying mechanism 33, and the upper wire pressing and conveying mechanism 33 can also be moved back to the initial position. Repeating the above control operation can realize the delivery of the guide wire A.

[0037] When the guidewire delivery device for vascular interventional surgery includes one guidewire delivery unit 3, intermittent delivery of the guidewire A can be achieved; when the guidewire delivery device for vascular interventional surgery includes two guidewire delivery units 3, the phase difference between the two guidewire delivery units 3 is 180°, so that intermittent delivery of the guidewire A can be achieved, and the intermittent time is short and the wire feeding efficiency is high; when the guidewire delivery device for vascular interventional surgery includes three guidewire delivery units 3, the phases of the three guidewire delivery units 3 differ by 120° respectively, so that continuous delivery of the guidewire A can be achieved.

[0038] Of course, the guidewire delivery device for vascular intervention surgery in Example 2 can be rotated 180° clockwise as a whole. At this time, the downward pressing wire conveying mechanism 34 can move along a preset trajectory under the action of the driving mechanism.

[0039] Example 3

[0040] like Figure 6 As shown, in this embodiment, the structures of the upper wire pressing conveying mechanism 33 and the lower wire pressing conveying mechanism 34 are mirror-symmetrical. The structure of the upper wire pressing conveying mechanism 33 can be the same as that in Example 1, or the structure of the upper wire pressing conveying mechanism 33 is as follows: it includes a mounting plate 3301, the lower end of the mounting plate 3301 is fixed on a slide plate 3307, the slide plate 3307 is slidably connected to the vertical guide column 32, a pressing block 3303 is provided on the lower surface of the slide plate 3307, and a through hole 3308 is provided in the mounting plate 3301. An elliptical gear 3309 is provided at the through hole 3308, and the elliptical gear 3309 is fixed to the slide plate 3307 via a connecting rib 33010. A motion track is formed between the elliptical gear 3309 and the through hole 3308. The driving gear 401 in the driving mechanism 4 is located in the motion track, and the driving gear 401 is meshed with the elliptical gear 3309. When the driving gear 401 is driven to rotate in situ, for example, by a motor, the upper wire pressing and conveying mechanism 33 can be moved along a preset track.

[0041] In the specific use process, the driving gear 401 is driven to rotate in situ, so that the upper wire pressing conveying mechanism 33 and the lower wire pressing conveying mechanism 34 move along the preset track at the same time. In this process, when the upper wire pressing conveying mechanism 33 moves along the horizontal side of the rectangle at the bottom, and the lower wire pressing conveying mechanism 34 moves along the horizontal side of the rectangle at the top, the two pressing blocks 3303 cooperate to clamp the guide wire A, so as to simulate the human hand holding the guide wire A for delivery. As the driving gear 401 continues to rotate, the slide frame 31 can be moved back to the initial position driven by the upper wire pressing conveying mechanism 33 and the lower wire pressing conveying mechanism 34, and the upper wire pressing conveying mechanism 33 and the lower wire pressing conveying mechanism 34 can also be moved back to the initial position. Repeating the above control operation can realize the delivery of the guide wire A.

[0042] When the guidewire delivery device for vascular interventional surgery includes one guidewire delivery unit 3, intermittent delivery of the guidewire A can be achieved; when the guidewire delivery device for vascular interventional surgery includes two guidewire delivery units 3, the phase difference between the two guidewire delivery units 3 is 180°, so that intermittent delivery of the guidewire A can be achieved, and the intermittent time is short and the wire feeding efficiency is high; when the guidewire delivery device for vascular interventional surgery includes three guidewire delivery units 3, the phases of the three guidewire delivery units 3 differ by 120° respectively, so that continuous delivery of the guidewire A can be achieved.

[0043] Example 4

[0044] like Figure 7 As shown, in this embodiment, the structures of the upper wire pressing conveying mechanism 33 and the lower wire pressing conveying mechanism 34 are mirror-symmetrical, and the structure of the upper wire pressing conveying mechanism 33 can be the same as that in Example 2.

[0045] The guidewire delivery device for vascular interventional surgery involved in the present application utilizes the cooperation of two pressure blocks, or the cooperation of a pressure block and a supporting plate, to achieve the function of translational wire feeding. Since the contact area of ​​the pressure block is large, there is no phenomenon of the guidewire coming out during the wire feeding process. The drive mechanism adopts a high-precision motor drive, which can be more stable and accurate than manual delivery. Such a structural design allows the operating doctor to perform the operation away from the radiation irradiation area, reducing the radiation exposure time of the operating doctor. In addition, intermittent delivery of the guidewire can be achieved by adopting one or two guidewire delivery units, and continuous delivery of the guidewire can be achieved by adopting the mutual cooperation of three guidewire delivery units.

[0046] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical solution and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A guidewire delivery device for vascular intervention surgery, Features: The invention comprises two fixed supports arranged opposite to each other, the guide wire can pass through the two fixed supports, at least two parallel horizontal guide pillars are arranged between the two fixed supports, n guide wire delivery units are slidably connected on the horizontal guide pillars, 1≤n≤3, n is an integer, the guide wire delivery unit comprises a sliding frame, the sliding frame is slidably connected to the horizontal guide pillars, at least two parallel vertical guide pillars are arranged on the sliding frame, an upper wire pressing conveying mechanism and a lower wire pressing conveying mechanism used in cooperation with each other are arranged on the vertical guide pillars, the upper wire pressing conveying mechanism and / or the lower wire pressing conveying mechanism can move along a preset track under the action of a driving mechanism, the preset track is rectangular, when moving along the left and right sides of the rectangle When the vertical edge moves, the upper wire pressing conveying mechanism and / or the lower wire pressing conveying mechanism move along the vertical guide column; when moving along the upper and lower horizontal edges of the rectangle, the upper wire pressing conveying mechanism and / or the lower wire pressing conveying mechanism drive the sliding frame to move along the horizontal guide column; when moving to the left / right along the horizontal guide column, the upper wire pressing conveying mechanism and the lower wire pressing conveying mechanism cooperate with each other to clamp the guide wire to achieve the delivery of the guide wire; when moving to the right / left along the horizontal guide column, the upper wire pressing conveying mechanism and the lower wire pressing conveying mechanism are in a state of releasing the guide wire, and the sliding frame can be moved back to the initial position along the horizontal guide column driven by the upper wire pressing conveying mechanism and / or the lower wire pressing conveying mechanism.

2. The vascular interventional surgery guidewire delivery device according to claim 1, Features: When n=2, the phase difference between the two guide wire delivery units is 180°; when n=3, the phases of the three guide wire delivery units differ by 120° respectively.

3. The vascular interventional surgery guidewire delivery device according to claim 2, Features: When the structures of the upper wire pressing and conveying mechanism and the lower wire pressing and conveying mechanism are different, the upper wire pressing and conveying mechanism can move along a preset trajectory under the action of the driving mechanism, and the structure of the upper wire pressing and conveying mechanism is as follows: it includes a mounting plate, and the mounting plate is slidably connected to the vertical guide column via a sliding bearing, and the lower end of the mounting plate is provided with a pressing block used in conjunction with the lower wire pressing and conveying mechanism, and the mounting plate is provided with an annular moving track groove, the inner edge of the moving track groove is a tooth surface, and the outer edge is a smooth limiting surface, the driving gear in the driving mechanism is located in the moving track groove, and the driving gear is meshed with the tooth surface, and when the driving gear is driven to rotate in place, the upper wire pressing and conveying mechanism can move along the preset trajectory.

4. The vascular interventional surgery guidewire delivery device according to claim 2, Features: When the structures of the upper wire pressing and conveying mechanism and the lower wire pressing and conveying mechanism are different, the upper wire pressing and conveying mechanism can move along a preset trajectory under the action of the driving mechanism, and the structure of the upper wire pressing and conveying mechanism is as follows: it includes a mounting plate, the mounting plate is slidably connected to the vertical guide column, and a pressure block used in conjunction with the lower wire pressing and conveying mechanism is provided at the lower end of the mounting plate. The rotating shaft in the driving mechanism is rotatably connected to the mounting plate, the rotating shaft is slidably connected to the connecting rod, and the connecting rod is fixedly connected to the input shaft. The input shaft can rotate in situ under the drive of the motor. When the input shaft is driven to rotate in situ, the upper wire pressing and conveying mechanism can move along the preset trajectory.

5. The vascular interventional surgery guidewire delivery device according to claim 3 or 4, Features: The lower wire pressing and conveying mechanism includes a supporting plate slidably mounted on the vertical guide column, a screw is provided on the lower surface of the supporting plate, and the screw is threadedly connected to the sliding frame. The upper and lower positions of the supporting plate can be adjusted by an adjusting nut used in conjunction with the screw to adapt to guide wires of different thicknesses.

6. The vascular interventional surgery guidewire delivery device according to claim 2, Features: When the structures of the upper wire pressing and conveying mechanism and the lower wire pressing and conveying mechanism are mirror-symmetrical, the structure of the upper wire pressing and conveying mechanism is as follows: it includes a mounting plate, which is slidably connected to the vertical guide column via a sliding bearing, and the lower end of the mounting plate is provided with a pressing block used in conjunction with the lower wire pressing and conveying mechanism, and the mounting plate is provided with an annular moving track groove, the inner edge of the moving track groove is a tooth surface, and the outer edge is a smooth limiting surface, the driving gear in the driving mechanism is located in the moving track groove, and the driving gear is meshed with the tooth surface, and when the driving gear is driven to rotate in place, the upper wire pressing and conveying mechanism can move along a preset trajectory.

7. The vascular interventional surgery guidewire delivery device according to claim 2, Features: When the structures of the upper wire pressing and conveying mechanism and the lower wire pressing and conveying mechanism are mirror-symmetrical, the structure of the upper wire pressing and conveying mechanism is as follows: it includes a mounting plate, the lower end of the mounting plate is fixed on a slide plate, the slide plate is slidably connected to the vertical guide column, a pressure block is provided on the lower surface of the slide plate, a through hole is provided in the mounting plate, an elliptical gear is provided at the through hole, the elliptical gear is fixed to the slide plate via connecting ribs, a motion track is formed between the elliptical gear and the through hole, a driving gear in the driving mechanism is located in the motion track, and the driving gear is meshed with the elliptical gear, and when the driving gear is driven to rotate in place, the upper wire pressing and conveying mechanism can move along a preset trajectory.

8. The vascular interventional surgery guidewire delivery device according to claim 2, Features: When the structures of the upper wire pressing and conveying mechanism and the lower wire pressing and conveying mechanism are mirror-symmetrical, the structure of the upper wire pressing and conveying mechanism is as follows: it includes a mounting plate, the mounting plate is slidably connected to the vertical guide column, and a pressure block used in conjunction with the lower wire pressing and conveying mechanism is provided at the lower end of the mounting plate. The rotating shaft in the driving mechanism is rotatably connected to the mounting plate, the rotating shaft is slidably connected to the connecting rod, and the connecting rod is fixedly connected to the input shaft. The input shaft can rotate in situ under the drive of the motor. When the input shaft is driven to rotate in situ, the upper wire pressing and conveying mechanism can move along a preset trajectory.

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