A vascular intervention therapy self-adaptive guide wire delivery device

Abstract

The application relates to the technical field of medical devices, and particularly discloses a self-adaptive guide wire delivery device for vascular interventional therapy, which comprises a clamping guide mechanism, a first driving assembly and a second driving assembly. The clamping guide mechanism is used for providing accurate guidance and stable clamping force for a guide wire catheter; the first driving assembly is used for realizing self-regulation and control of the clamping force of the clamping guide mechanism; and the second driving assembly is used for providing a conveying driving force for the clamping guide mechanism and driving the guide wire to be conveyed along a preset guide direction smoothly. The clamping guide mechanism of the device adopts an under-actuated structure, a plurality of guide wheel assemblies are driven to rotate synchronously through the second driving assembly, the left and right sides of the guide wire catheter can be uniformly stressed, and the end positioning precision of the guide wire catheter is improved. Meanwhile, in combination with the function of the first driving assembly in self-regulation and control of the clamping force, the flexible selection requirement of guide wire catheters of different specifications can be met, and the device can be adapted to various vascular interventional operation conditions.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and specifically to an adaptive guidewire delivery device for vascular interventional therapy. Background Technology

[0002] Patent CN117838326B discloses a coaxial vascular interventional surgical instrument delivery box, delivery system, and delivery method. The coaxial vascular interventional surgical instrument delivery box includes a first delivery wheel, a second delivery wheel, and a Y-valve mounting groove. A main delivery channel for delivering a microcatheter is formed between the first and second delivery wheels. A Y-valve is mounted in the Y-valve mounting groove, with the head interface of the Y-valve positioned close to the main delivery channel. The end of the microcatheter is rotatable. This solution has the following technical drawbacks: Disadvantage 1: A main drive rubber wheel rotates the driven rubber wheel by friction with the driven rubber wheel that clamps the guide wire. There is a loss in the friction force transmission process, and the loss may be amplified during the catheter delivery process, resulting in uneven force on the left and right sides of the guide wire, which affects the positioning accuracy of the end of the guide wire.

[0003] Disadvantage 2: The drive rollers are supported and installed by a fixed base, and the axial spacing is fixed, making it difficult to adapt to different types of guidewires, which affects the flexibility of guidewire selection in different vascular interventional treatment scenarios. Summary of the Invention

[0004] The purpose of this invention is to provide an adaptive guidewire delivery device for vascular interventional therapy, which has adaptive clamping function and autonomous clamping force adjustment function, and the positioning accuracy of the delivered guidewire tip is high, which can meet the flexible selection needs of guidewires of different specifications.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An adaptive guidewire delivery device for vascular interventional therapy includes: a clamping and guiding mechanism, a first driving component, a second driving component, and a support member.

[0006] The clamping and guiding mechanism is used to provide guidance and clamping force for the guidewire catheter.

[0007] The first driving component is used to drive the clamping guide mechanism to regulate the clamping force of the clamping guide mechanism.

[0008] The second drive component is used to provide driving force to the clamping and guiding mechanism to drive the guide wire to be conveyed along the guiding direction.

[0009] The support member is used to provide support for the clamping guide mechanism, the first drive assembly, and the second drive assembly.

[0010] The clamping and guiding mechanism includes at least one first guide wheel assembly, at least one second guide wheel assembly, and a transmission component.

[0011] The at least one first guide wheel assembly and the at least one second guide wheel assembly are slidably connected to the support member, and the sliding axis of the at least one first guide wheel assembly and the sliding axis of the at least one second guide wheel assembly are both perpendicular to the guiding direction of the guide wire.

[0012] The at least one first guide wheel assembly and the at least one second guide wheel assembly are linked together by the transmission component.

[0013] The second drive component is configured to connect to the at least one first guide wheel assembly to drive the at least one first guide wheel assembly and the at least one second guide wheel assembly to rotate, and the at least one first guide wheel assembly and the at least one second guide wheel assembly rotate in opposite directions.

[0014] Each of the at least one first guide wheel assembly and the at least one second guide wheel assembly is fixedly provided with an elastic element, one end of which is fixedly connected to the support member, and the elastic element is used to provide clamping force for the at least one first guide wheel assembly and the at least one second guide wheel assembly.

[0015] The at least one first guide wheel assembly and the at least one second guide wheel assembly are both connected to the first drive assembly. The first drive assembly is used to drive the at least one first guide wheel assembly and the at least one second guide wheel assembly to slide along the sliding axis to compress the elastic element and adjust the clamping force.

[0016] In at least one embodiment of the vascular interventional therapy adaptive guidewire delivery device provided in this disclosure, the first guide wheel assembly and the second guide wheel assembly each include a connecting shaft, an upper synchronous wheel, a lower synchronous wheel and a slider.

[0017] The bottom end of the connecting shaft is rotatably connected to the slider, and both the upper and lower synchronous pulleys are fixedly connected to the connecting shaft.

[0018] The central axis of the upper synchronous pulley, the central axis of the lower synchronous pulley, and the central axis of the connecting shaft coincide.

[0019] The other end of the elastic element is fixedly mounted on the slider, and a guide rail is provided on the support member, with the slider slidably connected to the guide rail.

[0020] The lower synchronous pulley is provided with a guide groove that matches the guide wire.

[0021] The transmission component is a closed-loop transmission rope, which is wound around multiple upper synchronous pulleys.

[0022] In at least one embodiment of the vascular interventional therapy adaptive guidewire delivery device provided in this disclosure, the second drive component includes a motor, a drive gear, and a driven gear.

[0023] The motor is connected to the driving gear, and the driven gear is fixedly mounted on one of the upper synchronous pulleys. The driven gear is configured to mesh with the driving gear.

[0024] In at least one embodiment of the vascular interventional therapy adaptive guidewire delivery device provided in this disclosure, the first drive component includes an active ratchet, a driven ratchet, a knob, an input shaft, a return spring, a first rope reel, a second rope reel, a first pull rope, and a second pull rope.

[0025] The two ends of the input shaft are fixedly connected to the active ratchet and the knob, respectively, and the return spring is disposed between the active ratchet and the knob.

[0026] The central axis of the driving ratchet coincides with the central axis of the driven ratchet.

[0027] The return spring is used to apply pressure to the driving ratchet so that the driving ratchet and the driven ratchet remain engaged.

[0028] The driven ratchet is connected to a driven shaft, which is fixedly connected to the first rope reel. The first and second rope reels are geared together.

[0029] Both the first and second rope reels are rotatably connected to the support member.

[0030] One end of the first pull rope is fixedly mounted on the first rope reel, and the other end of the first pull rope is fixedly mounted on the slider of the first guide wheel assembly.

[0031] One end of the second pull rope is fixedly mounted on the second rope reel, and the other end of the second pull rope is fixedly mounted on the slider of the second guide wheel assembly.

[0032] The support member is provided with multiple guide wheel sets, which are used to guide the first pull rope and the second pull rope.

[0033] In at least one embodiment of the vascular interventional therapy adaptive guidewire delivery device provided in this disclosure, a support frame is provided on the support member.

[0034] The input shaft is movably connected to the support frame, one end of the return spring abuts against the drive ratchet, and the other end of the return spring abuts against the support frame.

[0035] The adaptive guidewire delivery device for vascular interventional therapy provided in at least one embodiment of this disclosure further includes: a first guide support assembly, a second guide support assembly, and a third guide support assembly.

[0036] The first guide support assembly is disposed at the rear end of the support member.

[0037] The second guide support component is configured to be positioned opposite the front end of the support member, and the second guide support component is horizontally opposite the first guide support component.

[0038] The third guide support assembly is fixedly disposed on the support member.

[0039] The first guide support assembly, the second guide support assembly, and the third guide support assembly are all used to provide guidance for the guide wire.

[0040] The adaptive guidewire delivery device for vascular interventional therapy provided in at least one embodiment of this disclosure further includes a rotary drive assembly.

[0041] The rotary drive assembly is used to drive the support member to rotate with the central axis of the guide wire as the rotation axis, so as to drive the guide wire to rotate synchronously.

[0042] The adaptive guidewire delivery device for vascular interventional therapy provided in at least one embodiment of this disclosure further includes: a first detection component.

[0043] The first detection component is used to detect the rotation angle and / or rotation speed of the guidewire.

[0044] The adaptive guidewire delivery device for vascular interventional therapy provided in at least one embodiment of this disclosure further includes a second detection component.

[0045] The second detection component is used to detect the actual movement distance of the guidewire.

[0046] The second detection component is located at the front end of the second guide support component.

[0047] The adaptive guidewire delivery device for vascular interventional therapy provided in at least one embodiment of this disclosure further includes a base.

[0048] The base is positioned below the support member.

[0049] Both the first guide support assembly and the second guide support assembly are fixedly connected to the base.

[0050] The beneficial effects of the present invention are as follows: the clamping and guiding mechanism adopts an underactuated configuration, and multiple sets of guide wheel assemblies are driven to rotate synchronously by the second driving component, which can make the guide wire and catheter evenly stressed on both sides, significantly improving the positioning accuracy of the catheter tip; at the same time, the clamping force of the guide wheel assembly on the guide wire and catheter can be adjusted autonomously by the first driving component, which can adapt to various vascular interventional surgical conditions and meet the flexible selection needs of guide wires of different specifications. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0052] Figure 1 This is a schematic diagram of the overall structure of an adaptive guidewire delivery device for vascular interventional therapy.

[0053] Figure 2 This is a schematic diagram showing the distribution of the clamping guide mechanism and the first drive component.

[0054] Figure 3 This is a schematic diagram showing the connection of some components of an adaptive guidewire delivery device for vascular interventional therapy.

[0055] Figure 4 This is a schematic diagram showing the connection between the second drive component and the clamping guide mechanism.

[0056] Figure 5 This is a schematic diagram of the first and second pull ropes.

[0057] Figure 6 for Figure 4 Enlarged diagram of point A in the middle.

[0058] Figure 7 This is a schematic diagram showing the component distribution of the clamping and guiding mechanism.

[0059] Figure 8 This is a schematic diagram showing the distribution of some components in the first drive assembly.

[0060] Figure 9 This is a schematic diagram of the structure of the first driving component.

[0061] Figure 10 This is a partial cross-sectional view of an adaptive guidewire delivery device for vascular interventional therapy.

[0062] Figure 11 This is a partial cross-sectional view of an adaptive guidewire delivery device for vascular interventional therapy.

[0063] Figure 12 This is a partial cross-sectional view of an adaptive guidewire delivery device for vascular interventional therapy.

[0064] Figure 13 This is a partial cross-sectional view of an adaptive guidewire delivery device for vascular interventional therapy.

[0065] Figure 14 This is a partial cross-sectional view of an adaptive guidewire delivery device for vascular interventional therapy.

[0066] Figure 15 This is a partial structural diagram of an adaptive guidewire delivery device for vascular interventional therapy.

[0067] In the picture: 10. Clamping and guiding mechanism; 11. First guide wheel assembly; 111. Connecting shaft; 112. Upper synchronous pulley; 113. Lower synchronous pulley; 114. Slider; 12. Second guide wheel assembly; 13. Transmission component; 14. Elastic component; 20. First drive assembly; 21. Driving ratchet; 22. Driven ratchet; 23. Knob; 24. Input shaft; 25. Return spring; 26. First rope reel; 27. Second rope reel; 28. First pull rope; 29. ​​Second pull rope; 211. Driven shaft; 30. Second drive assembly; 31. Motor; 32. Drive gear; 33. Driven gear; 40. Supporting components; 41. Guide wheel assembly; 42. Support frame; 43. Guide rail; 50. Second guide support assembly; 51. Second support base; 52. Second protective shell; 53. Second support guide tube; 54. Second limiting support plate; 55. Hollow slip ring; 60. Third guide support assembly; 61. Third support limiting plate; 62. Third support guide tube; 70. Rotary drive assembly; 71. Rotary driver; 72. Input gear; 73. Output gear; 80. First detection component; 81. Encoder; 82. First angle measuring gear; 83. Second angle measuring gear; 90. Second detection component; 91. Support base; 92. Tensile displacement sensor; 100. Base; 110. First guide support assembly; 1101. First support base; 1102. First protective shell; 1103. First support guide tube; 1104. First limiting support plate; 120. Outer shell. Detailed Implementation

[0068] The technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments, not all embodiments.

[0069] Example like Figures 1 to 4As shown, an adaptive guidewire delivery device for vascular interventional therapy includes a clamping and guiding mechanism 10, a first driving component 20, a second driving component 30, a support member 40, a first guide support component 110, a second guide support component 50, a third guide support component 60, a rotary driving component 70, a first detection component 80, a second detection component 90, and a base 100.

[0070] Specifically, the clamping and guiding mechanism 10 is used to provide guidance and clamping force for the guidewire catheter.

[0071] Specifically, the first drive component 20 is used to drive the clamping guide mechanism 10 to regulate the clamping force of the clamping guide mechanism 10.

[0072] Specifically, the second drive assembly 30 is used to provide driving force to the clamping guide mechanism 10 so as to drive the guide wire catheter to be delivered along the guide direction.

[0073] Specifically, the support member 40 provides support for the clamping guide mechanism 10, the first drive assembly 20, and the second drive assembly 30. A housing 120 is provided on the outer periphery of the support member 40, and the support member 40 is fixedly connected to the housing 120.

[0074] The specific structure of the clamping and guiding mechanism 10 will be further disclosed below with reference to the accompanying drawings.

[0075] like Figure 2 , 3 As shown in Figures 4, 5, 6, and 7, the clamping guide mechanism 10 includes a first guide wheel assembly 11, a second guide wheel assembly 12, and a transmission member 13. Two copies of each of the first guide wheel assembly 11 and the second guide wheel assembly 12 are provided.

[0076] Specifically, both the first guide wheel assembly 11 and the second guide wheel assembly 12 are slidably connected to the support member 40, and the sliding axis of the first guide wheel assembly 11 and the sliding axis of the second guide wheel assembly 12 are perpendicular to the guiding direction of the guide wire guide tube. The first guide wheel assembly 11 and the second guide wheel assembly 12 are linked together by the transmission member 13.

[0077] Specifically, the second drive assembly 30 is configured to be connected to the first guide wheel assembly 11, thereby driving the first guide wheel assembly 11 and the second guide wheel assembly 12 to rotate, and the first guide wheel assembly 11 and the second guide wheel assembly 12 rotate in opposite directions.

[0078] Specifically, each of the first guide wheel assembly 11 and the second guide wheel assembly 12 is fixedly provided with an elastic element 14. One end of the elastic element 14 is fixedly connected to the support member 40, and the elastic element 14 is used to provide clamping force for the first guide wheel assembly 11 and the second guide wheel assembly 12. Both the first guide wheel assembly 11 and the second guide wheel assembly 12 are connected to the first drive assembly 20, which is used to drive the first guide wheel assembly 11 and the second guide wheel assembly 12 to slide along the sliding axis, compressing the elastic element 14 to adjust the clamping force.

[0079] Furthermore, both the first guide wheel assembly 11 and the second guide wheel assembly 12 include a connecting shaft 111, an upper synchronous wheel 112, a lower synchronous wheel 113, and a slider 114.

[0080] Specifically, the bottom end of the connecting shaft 111 is rotatably connected to the slider 114, and the upper synchronous wheel 112 and the lower synchronous wheel 113 are both fixedly connected to the connecting shaft 111. The central axis of the upper synchronous wheel 112, the central axis of the lower synchronous wheel 113, and the central axis of the connecting shaft 111 coincide.

[0081] Specifically, the other end of the elastic element 14 is fixedly mounted on the slider 114, and a guide rail 43 is provided on the support member 40. The slider 114 is slidably connected to the guide rail 43. At the same time, two lateral guide openings are provided on the support member 40. The lateral guide openings are located above the guide rail 43, and the guide rail 43 is parallel to the lateral guide openings. The connecting shaft 111 passes through the support member 40 through the lateral guide openings, and the lateral guide openings provide lateral movement space for the connecting shaft 111.

[0082] Specifically, the transmission component 13 is a closed-loop transmission rope, which is wound around four upper synchronous pulleys 112 in a figure-eight shape, so that the four upper synchronous pulleys 112 move in unison, and each of the four upper synchronous pulleys 112 independently drives one lower synchronous pulley 113. By adopting the unique connection method of the figure-eight closed-loop transmission rope, an underdriven design can be formed, reducing the number of motors, while also achieving that the four lower synchronous pulleys 113 move at the same speed and drive in opposite directions in pairs. The guide wire guide is evenly stressed on both sides, and the four lower synchronous pulleys 113 work in sync, which can improve the end positioning accuracy of the guide wire.

[0083] Specifically, the lower synchronous pulley 113 is provided with a guide groove that matches the guide wire tube. The lower synchronous pulley 113 is a rubber pulley, and the closed-loop transmission rope is a flexible rope to ensure the smooth and impact-resistant characteristics when the guide wire tube contacts the rubber pulley.

[0084] For example, the elastic element 14 is a spring. The clamping and guiding mechanism 10 transmits the adjustment pressure through the guide rail, slider, spring and closed-loop transmission rope, which can realize the adaptive active adjustment of the guidewire and catheter clamping device, meet the flexible selection requirements of guidewires and catheters in different vascular interventional treatment scenarios, and ensure the compliant and impact-resistant characteristics of the guidewire and catheter when in contact with the rubber wheel while transmitting the adjustment force.

[0085] The specific structure of the second drive component 30 will be further disclosed below with reference to the accompanying drawings.

[0086] like Figure 3 and 4 As shown, the second drive assembly 30 includes a motor 31, a drive gear 32, and a driven gear 33.

[0087] The motor 31 is connected to the drive gear 32, and the driven gear 33 is fixedly disposed above one of the upper synchronous pulleys 112. The driven gear 33 is configured to mesh with the drive gear 32.

[0088] The power of the motor 31 is input from one of the upper synchronous pulleys 112. The four upper synchronous pulleys 112 are connected by a unique figure-eight closed-loop transmission rope, which can reduce the number of drive motors and achieve the same speed and opposite driving of the four upper synchronous pulleys 112.

[0089] The specific structure of the first drive component 20 will be further disclosed below with reference to the accompanying drawings.

[0090] like Figure 2 , 5 As shown in 6, 8 and 9, the first drive assembly 20 includes a driving ratchet 21, a driven ratchet 22, a knob 23, an input shaft 24, a return spring 25, a first rope reel 26, a second rope reel 27, two first pull ropes 28 and two second pull ropes 29.

[0091] Specifically, the two ends of the input shaft 24 are fixedly connected to the drive ratchet 21 and the knob 23, respectively, and the return spring 25 is disposed between the drive ratchet 21 and the knob 23. The central axis of the drive ratchet 21 coincides with the central axis of the driven ratchet 22.

[0092] The return spring 25 is used to apply pressure to the driving ratchet 21, so that the driving ratchet 21 and the driven ratchet 22 are in this meshing state.

[0093] Specifically, the driven ratchet 22 is connected to the driven shaft 221, which is fixedly connected to the first rope reel 26 and rotatably connected to the support member 40. The first rope reel 26 and the second rope reel 27 are linked by gears.

[0094] Specifically, both the first rope reel 26 and the second rope reel 27 are rotatably connected to the support member 40. One end of each of the two first pull ropes 28 is fixedly mounted on the first rope reel 26, and the other end of each of the two first pull ropes 28 is fixedly mounted on the slider of the first guide wheel assembly 11. One end of each of the two second pull ropes 29 is fixedly mounted on the second rope reel 27, and the other end of each of the two second pull ropes 29 is fixedly mounted on the slider of the second guide wheel assembly 12.

[0095] Specifically, the support member 40 is provided with a plurality of guide wheel sets 41, which are used to guide the first pull rope 28 and the second pull rope 29.

[0096] Specifically, a support frame 42 is provided on the support member 40. The input shaft 24 is movably connected to the support frame 42, one end of the return spring 25 abuts against the drive ratchet 21, and the other end of the return spring 25 abuts against the support frame 42.

[0097] In use, the rotational force can be converted into a pulling force on the slider 114 by turning the knob 23. The required rotation angle of each ratchet tooth corresponds to the movement distance of the slider on the slide rail. Therefore, the center distance of the rubber wheel and the clamping force can be precisely adjusted by rotating the fixed number of teeth.

[0098] If it is necessary to maximize the clamping force of the rubber wheel, after completing the initial preparation for the insertion of the guide wire and catheter, the return spring 25 can be compressed by pulling up the knob, the active ratchet 21 will move away from the driven ratchet 22, thereby releasing the meshing state of the active ratchet 21 and the driven ratchet 22. Under the action of the elastic element 14, the rubber wheel will automatically reset and restore the maximum clamping force of the rubber wheel.

[0099] The specific structure of the first guide support component 110 will be further disclosed below with reference to the accompanying drawings.

[0100] like Figure 10 and 11 As shown, the first guide support assembly 110 is disposed at the rear end of the support member 40. The first guide support assembly 110 includes a first support base 1101, a first protective shell 1102, a first support guide tube 1103, and a first limiting support plate 1104.

[0101] Specifically, the first support base 1101 is fixedly connected to the first protective shell 1102, the first limiting support plate 1104 is fixedly connected to the support member 40, and both the first support base 1101 and the first limiting support plate 1104 are rotatably connected to the first support guide tube 1103 through bearings.

[0102] The following section will further disclose the structural schematic diagram of the second guide support component 50 in conjunction with the accompanying drawings.

[0103] like Figure 12 and 13 As shown, the second guide support assembly 50 is configured to be positioned opposite the front end of the support member 40, and the second guide support assembly 50 is horizontally opposed to the first guide support assembly 110. The second guide support assembly 50 includes a second support base 51, a second protective shell 52, a second support guide tube 53, a second limiting support plate 54, and a hollow slip ring 55.

[0104] Specifically, the second support base 51 and the second protective shell 52 are fixedly connected, and the hollow slip ring 55 and the support member 40 are both fixedly connected to the second limiting support plate 54.

[0105] Specifically, the second support guide tube 53 passes through the hollow slip ring 55 and is fixedly connected to the hollow slip ring 55; the second support base 51 and the second limiting support plate 54 are both rotatably connected to the second support guide tube 53 through bearings.

[0106] Specifically, the base 100 is located between the first protective shell 1102 and the second protective shell 52, and the base 100 is disposed below the support member 40. The two ends of the base 100 are fixedly connected to the first protective shell 1102 and the second protective shell 52, respectively.

[0107] The specific structure of the third guide support component 60 will be further disclosed below with reference to the accompanying drawings.

[0108] like Figure 14 As shown, the third guide support assembly 60 is fixedly disposed on the support member 40. The third guide support assembly 60 includes a third support limiting plate 61 and a third support guide tube 62.

[0109] Specifically, the third support limiting plate 61 is fixedly connected to the support member 40, and the third support guide tube 62 is rotatably connected to the third support limiting plate 61 through a bearing.

[0110] Specifically, the first support guide tube 1103, the second support guide tube 53, and the third support guide tube 62 are all used to provide guidance for the guidewire catheter; the central axis of the first support guide tube 1103, the central axis of the second support guide tube 53, and the central axis of the third support guide tube 62 coincide.

[0111] The specific structure of the slewing drive assembly 70 will be further disclosed below with reference to the accompanying drawings.

[0112] like Figure 3 , 12 As shown in Figures 1 and 13, the rotary drive assembly 70 includes a rotary driver 71, an input gear 72, and an output gear 73.

[0113] Specifically, the rotary actuator 71 is a servo motor or a servo drive motor. The drive shaft of the rotary actuator 71 is fixedly connected to the input gear 72. The output gear 73 is fixedly connected to the hollow slip ring 55, and the central axis of the output gear 73 coincides with the central axis of the second support guide tube 53. The input gear 72 and the output gear 73 mesh.

[0114] The function of the rotary drive assembly 70 is to enable the guide wire conduit to rotate. In use, the second support guide tube 53 is used as the rotation axis, and the rotary driver 71 drives the entire support member 40 to rotate. Since the guide wire conduit is clamped by the rubber wheel, the guide wire conduit will also rotate along with the support member 40.

[0115] The specific structure of the first detection component 80 will be further disclosed below with reference to the accompanying drawings.

[0116] like Figure 3 , 10 As shown in Figure 11, the first detection component 80 is used to detect the rotation angle, rotation speed, and rotation accuracy of the guidewire catheter. The first detection component 80 includes an encoder 81, a first angle measuring gear 82, and a second angle measuring gear 83.

[0117] Specifically, the detection shaft of the encoder 81 is fixedly connected to the first angle measuring gear 82; the second angle measuring gear 83 is fixedly connected to the first limiting support plate 1104, and the second angle measuring gear 83 meshes with the first angle measuring gear 82.

[0118] The first angle measuring gear 82 and the second angle measuring gear 83 are two 1:1 spur gears. The encoder 81 directly transmits and reads the rotation angle, rotation speed and rotation accuracy of the guide wire guide tube through the two 1:1 spur gears.

[0119] The specific structure of the second detection component 90 will be further disclosed below with reference to the accompanying drawings.

[0120] like Figure 15 As shown, the second detection component 90 is located at the front end of the second guide support component 50. The second detection component 90 includes a support base 91 and a tensile displacement sensor 92.

[0121] The support base 91 is fixedly connected to the second protective shell 52; the tensile displacement sensor 92 is fixed on the support base 91. The tensile end of the tensile displacement sensor 92 is fixed to the end of the guide wire to measure the actual movement distance, movement speed and movement accuracy of the guide wire.

[0122] Although embodiments of this application have been shown and described above, the scope of protection of this invention is not limited thereto. Any variations or substitutions that can be conceived without inventive effort should be covered within the scope of protection of this invention. Unless expressly stated otherwise, no element, action or instruction used herein should be construed as critical or necessary.

Claims

1. An adaptive guidewire delivery device for vascular interventional therapy, characterized in that, include: The clamping and guiding mechanism is used to provide guidance and clamping force for the guidewire catheter; A first driving component is used to drive the clamping guide mechanism to regulate the clamping force of the clamping guide mechanism; The second drive assembly is used to provide driving force to the clamping and guiding mechanism so as to drive the guide wire to be conveyed along the guiding direction; as well as A support member is provided to support the clamping guide mechanism, the first drive assembly, and the second drive assembly. The clamping and guiding mechanism includes at least one first guide wheel assembly, at least one second guide wheel assembly, and a transmission component; The at least one first guide wheel assembly and the at least one second guide wheel assembly are slidably connected to the support member, and the sliding axis of the at least one first guide wheel assembly and the sliding axis of the at least one second guide wheel assembly are perpendicular to the guiding direction of the guide wire. The at least one first guide wheel assembly and the at least one second guide wheel assembly are linked together by the transmission component; The second drive component is configured to connect to the at least one first guide wheel assembly to drive the at least one first guide wheel assembly and the at least one second guide wheel assembly to rotate, wherein the at least one first guide wheel assembly and the at least one second guide wheel assembly rotate in opposite directions; Each of the at least one first guide wheel assembly and the at least one second guide wheel assembly is fixedly provided with an elastic element, one end of which is fixedly connected to the support member, and the elastic element is used to provide clamping force for the at least one first guide wheel assembly and the at least one second guide wheel assembly; The at least one first guide wheel assembly and the at least one second guide wheel assembly are both connected to the first drive assembly. The first drive assembly is used to drive the at least one first guide wheel assembly and the at least one second guide wheel assembly to slide along the sliding axis to compress the elastic element and adjust the clamping force.

2. The adaptive guidewire delivery device for vascular interventional therapy according to claim 1, characterized in that, Both the first guide wheel assembly and the second guide wheel assembly include a connecting shaft, an upper synchronous wheel, a lower synchronous wheel, and a slider; The bottom end of the connecting shaft is rotatably connected to the slider, and both the upper and lower synchronous pulleys are fixedly connected to the connecting shaft. The central axis of the upper synchronous pulley, the central axis of the lower synchronous pulley, and the central axis of the connecting shaft coincide; The other end of the elastic element is fixedly mounted on the slider, and a guide rail is provided on the support member, with the slider slidably connected to the guide rail; The lower synchronous pulley is provided with a guide groove that matches the guide wire; The transmission component is a closed-loop transmission rope, which is wound around multiple upper synchronous pulleys.

3. The adaptive guidewire delivery device for vascular interventional therapy according to claim 2, characterized in that, The second drive assembly includes a motor, a drive gear, and a driven gear; The motor is connected to the driving gear, and the driven gear is fixedly mounted on one of the upper synchronous pulleys. The driven gear is configured to mesh with the driving gear.

4. The adaptive guidewire delivery device for vascular interventional therapy according to claim 2, characterized in that, The first drive assembly includes a driving ratchet, a driven ratchet, a knob, an input shaft, a return spring, a first rope reel, a second rope reel, a first pull rope, and a second pull rope; The two ends of the input shaft are fixedly connected to the active ratchet and the knob, respectively, and the return spring is disposed between the active ratchet and the knob; The central axis of the driving ratchet coincides with the central axis of the driven ratchet; The return spring is used to apply pressure to the driving ratchet so that the driving ratchet and the driven ratchet remain engaged. The driven ratchet is connected to a driven shaft, which is fixedly connected to the first rope reel, and the first and second rope reels are geared together. Both the first and second rope reels are rotatably connected to the supporting member. One end of the first pull rope is fixedly mounted on the first rope reel, and the other end of the first pull rope is fixedly mounted on the slider of the first guide wheel assembly; One end of the second pull rope is fixedly mounted on the second rope reel, and the other end of the second pull rope is fixedly mounted on the slider of the second guide wheel assembly; The support member is provided with multiple guide wheel sets, which are used to guide the first pull rope and the second pull rope.

5. The adaptive guidewire delivery device for vascular interventional therapy according to claim 4, characterized in that, A support frame is provided on the support member; The input shaft is movably connected to the support frame, one end of the return spring abuts against the drive ratchet, and the other end of the return spring abuts against the support frame.

6. The adaptive guidewire delivery device for vascular interventional therapy according to claim 1, characterized in that, Also includes: A first guide support assembly is disposed at the rear end of the support member; A second guide support component is configured to be positioned opposite the front end of the support member, and the second guide support component is horizontally opposite the first guide support component. as well as A third guide support assembly is fixedly disposed on the support member; The first guide support assembly, the second guide support assembly, and the third guide support assembly are all used to provide guidance for the guide wire.

7. The adaptive guidewire delivery device for vascular interventional therapy according to claim 1, characterized in that, Also includes: A rotary drive assembly is used to drive the support member to rotate with the central axis of the guide wire as the rotation axis, so as to drive the guide wire to rotate synchronously.

8. The adaptive guidewire delivery device for vascular interventional therapy according to claim 7, characterized in that, Also includes: The first detection component is used to detect the rotation angle and / or rotation speed of the guidewire.

9. The adaptive guidewire delivery device for vascular interventional therapy according to claim 1, characterized in that, Also includes: The second detection component is used to detect the actual movement distance of the guidewire; The second detection component is located at the front end of the second guide support component.

10. The adaptive guidewire delivery device for vascular interventional therapy according to claim 6, characterized in that, Also includes: A base is disposed below the supporting member; Both the first guide support assembly and the second guide support assembly are fixedly connected to the base.

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