Micro guide wire clamping mechanism

Abstract

The utility model discloses a micro guide wire clamping mechanism. The micro guide wire clamping mechanism comprises a shell, a rotating assembly and a clamping assembly. The micro guide wire clamping mechanism is arranged in the shell, a micro guide wire is arranged in the rotating assembly in a penetrating mode, the rotating assembly is used for rotating the micro guide wire, the rotating assembly is provided with a clamping part, and the clamping part is used for clamping the micro guide wire; the clamping assembly is arranged in the shell and located between the rotating assemblies, the clamping assembly comprises a clamping jaw, the clamping jaw is used for clamping one end of the micro rotating assembly, and the clamping jaw clamps the clamping part so that the clamping part can clamp the micro guide wire. The micro guide wire is firstly fixed through the clamping assembly of the rotating assembly, then the micro guide wire is rotated through the rotating assembly, the micro guide wire can be prevented from slipping in the pushing process, and meanwhile the rotating direction of the micro guide wire can be changed by rotating the micro guide wire.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a micro-guide wire clamping mechanism. Background Art

[0002] During vascular interventional surgery, patients need to undergo CT imaging continuously. Although doctors can wear lead clothing for partial protection, there are still some parts of their body that cannot be protected, such as hands and head. Therefore, there will be certain radiation damage to doctors during the surgery, so micro-guidewire control robots came into being.

[0003] During current surgeries, doctors use a remote control mechanism to push the micro-guidewire and catheter through the patient's blood vessels to the target location to control the movement of the micro-guidewire during surgery. The movement of the micro-guidewire includes rotation and advancement. Currently, most mechanisms use a threaded rotation clamping method to clamp the micro-guidewire, which may cause slippage or over-tightening. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a micro-guide wire clamping mechanism, which can rotate and clamp the micro-guide wire.

[0005] According to the micro-guidewire clamping mechanism of the embodiment of the utility model, the micro-guidewire clamping mechanism comprises:

[0006] shell;

[0007] a rotating assembly, the rotating assembly being arranged in the housing, the micro-guide wire being passed through the rotating assembly, the rotating assembly being used to rotate the micro-guide wire, the rotating assembly having a clamping portion, and the clamping portion being used to clamp the micro-guide wire; and

[0008] A clamping assembly is arranged in the housing and located between the rotating assemblies. The clamping assembly includes a clamping claw, which is used to clamp one end of the rotating assembly. The clamping claw clamps the clamping part so that the clamping part clamps the micro guide wire.

[0009] The micro-guidewire clamping mechanism according to the embodiment of the utility model has at least the following beneficial effects: the micro-guidewire is first fixed by the clamping assembly of the rotating assembly, and then the micro-guidewire is rotated by the rotating assembly, which can prevent the micro-guidewire from slipping during the pushing process and can also change the rotation direction of the micro-guidewire by rotating the micro-guidewire.

[0010] According to some embodiments of the present utility model, the clamping assembly includes:

[0011] a first driving member, the first driving member being disposed in a cavity inside the housing;

[0012] The clamping jaws are arranged on the output end of the first driving member, and the first driving component drives the clamping jaws to move relative to or towards each other; and

[0013] A guidewire clamping column, wherein the guidewire clamping column is rotatably arranged in the housing, a first through hole is penetrated at the axis of the guidewire clamping column, the micro guidewire can be inserted into the first through hole, a clamping member is arranged at one end of the guidewire clamping column, and the clamping claw can clamp the clamping member to clamp the micro guidewire.

[0014] According to some embodiments of the present invention, the clamping member comprises:

[0015] A plurality of guide posts, wherein the guide post ring is arranged on the end surface of one end of the guide wire clamping post, and the guide post extends along the direction of the micro guide wire;

[0016] A slide plate, the slide plate is slidably mounted on the guide column, an elastic member is mounted on the guide column, one end of the elastic member abuts against one end of the slide plate, and the other end of the elastic member abuts against one end of the guide wire clamping column, a second through hole for the micro guide wire to pass through is arranged at the center of the slide plate, the first through hole is coaxially arranged with the second through hole, and an end of the first through hole away from the elastic member is arranged with a guide hole; and

[0017] A fixing plate, wherein the fixing plate is fixedly arranged at the end of the guide column, a gap is provided between the fixing plate and the slide plate, the clamping end of the clamping claw is located in the gap, a clamping head is provided on the side of the fixing plate facing the slide plate, a third through hole is provided at the center of the clamping head for the micro guide wire to pass through, and the clamping head can be inserted into the guide hole.

[0018] According to some embodiments of the utility model, the clamping end of the clamping jaw is provided with a guide slope, and the edges of one end of the fixing plate and the sliding plate that are opposite to each other are both provided with a slope.

[0019] According to some embodiments of the present invention, the rotating assembly further comprises:

[0020] A guide wire clamping sleeve, wherein the guide wire clamping sleeve is sleeved on the outer side of the guide wire clamping column; and

[0021] A first transmission member, the first transmission member is arranged at the lower side of the rotating component, the first transmission member includes a first driving wheel, a first driven wheel and a second driving member, the output end of the second driving member is connected to the first driving wheel, the first driving wheel is connected to the first driven wheel, the first driving wheel drives the first driven wheel to rotate, and the first driven wheel is sleeved on the guide wire clamping sleeve.

[0022] According to some embodiments of the present invention, both the first driving wheel and the first driven wheel are pulleys, and the first driving wheel and the first driven wheel are driven by a first belt.

[0023] According to some embodiments of the utility model, a screw is provided at the other end of the guide wire clamping column, a fastening nut is screwed on the screw, and the fastening nut fixes the guide wire clamping column to the guide wire clamping sleeve.

[0024] According to some embodiments of the present utility model, the rotating assembly further includes a detection assembly, the detection assembly is disposed in the rotating assembly, and the detection assembly further includes:

[0025] a two-dimensional force sensor, wherein the two-dimensional force sensor is sleeved on the guide wire clamping sleeve, the first driven wheel is sleeved on the two-dimensional force sensor, and the two-dimensional force sensor can detect the force applied to the guide wire clamping sleeve; and

[0026] An electric slip ring is sleeved on the guide wire clamping sleeve and is located at one end of the two-dimensional force sensor. The electric slip ring is electrically connected to the two-dimensional force sensor and provides electrical energy for the two-dimensional force sensor.

[0027] According to some embodiments of the present invention, a wiring hole is provided at the bottom of the housing.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0030] Figure 1 This is a schematic diagram of a micro-guidewire rapid control device for vascular intervention according to an embodiment of the utility model;

[0031] Figure 2 for Figure 1 A schematic diagram of another viewing angle of the micro-guidewire rapid control device for vascular intervention is shown (housing omitted);

[0032] Figure 3 for Figure 1 A schematic diagram of a micro-guidewire clamping mechanism of a micro-guidewire rapid control device for vascular intervention is shown;

[0033] Figure 4 for Figure 3 An exploded schematic diagram of the micro-guidewire clamping mechanism is shown;

[0034] Figure 5 for Figure 3 A half-section schematic diagram of the micro-guidewire clamping mechanism is shown;

[0035] Figure 6 for Figure 5 A schematic cross-sectional view of a guidewire clamping column of a micro-guidewire clamping mechanism is shown;

[0036] Figure 7 This is an exploded schematic diagram of a driving mechanism of a micro-guidewire rapid control device for vascular intervention according to another embodiment of the utility model.

[0037] Reference numerals:

[0038] Micro guide wire 1;

[0039] Base 10; Guide rod 11;

[0040] Micro-guidewire clamping mechanism 20; rotating assembly 21; guidewire clamping sleeve 211; first transmission member 212; first driving wheel 2121; first driven wheel 2122; second driving member 2123; first belt 2124; clamping assembly 22; first driving member 221; clamping claw 222; guidewire clamping column 223; first through hole 2231; clamping member 2232; guide column 2232a; slide plate 2232b; elastic member 2232c; second through hole 2232d; guide hole 2232e, fixing plate 2232f; clamping head 2232g; third through hole 2232h; screw 2233; fastening nut 2234; housing 23; detection assembly 24; two-dimensional force sensor 241; electric slip ring 242;

[0041] Pushing mechanism 30; telescopic cylinder 31; driving mechanism 32; third driving member 321; second transmission member 322; second driving wheel 3221; second driven wheel 3222; second belt 3223; screw member 323; nut 3231; screw 3232. DETAILED DESCRIPTION

[0042] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0043] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, 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 invention 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 cannot be understood as a limitation on the present invention.

[0044] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0045] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0046] Reference Figures 1 to 3 The micro-guidewire clamping mechanism of the embodiment of the utility model is specifically described as follows by the micro-guidewire rapid control device for vascular intervention having the micro-guidewire clamping mechanism:

[0047] The vascular intervention micro-guidewire rapid control device comprises a base 10, a micro-guidewire clamping mechanism 20 and a pushing mechanism 30. The micro-guidewire clamping mechanism 20 is movably arranged on one end of the base 10, and the micro-guidewire clamping mechanism 20 comprises a rotating assembly 21 and a clamping assembly 22, the clamping assembly 22 is arranged between the rotating assemblies 21, the micro-guidewire 1 is passed through the rotating assembly 21, the rotating assembly 21 is used to rotate the micro-guidewire 1, and the clamping assembly 22 is used to clamp the micro-guidewire 1; the pushing mechanism 30 is arranged on the base 10, and the pushing mechanism 30 has an output end, the output end of the pushing mechanism 30 is connected to the rotating assembly 21, and the output end of the pushing mechanism 30 drives the micro-guidewire clamping mechanism 20 to slide on the base 10.

[0048] The micro-guidewire 1 passes through the rotating assembly 21 on the micro-guidewire clamping mechanism 20 of the micro-guidewire rapid control device for vascular intervention, and then the micro-guidewire 1 is first fixed by the clamping assembly 22 of the micro-guidewire clamping mechanism 20, and then the micro-guidewire 1 is rotated by the rotating assembly 21. The clamped micro-guidewire 1 can change the propulsion direction of the end of the micro-guidewire 1 under the drive of the rotating assembly 20, and finally the micro-guidewire 1 can be pushed to the target position in the blood vessel in cooperation with the pushing mechanism 30. Using the clamping assembly 22 to clamp the micro-guidewire 1 can not only clamp and fix the micro-guidewire 1, but also prevent the micro-guidewire 1 from slipping during the pushing process, and at the same time, the rotation direction of the micro-guidewire 1 can be changed by rotating the micro-guidewire 1; in addition, the micro-guidewire 1 can be pushed by the pushing mechanism to change the pushing direction in cooperation with the rotation of the micro-guidewire clamping mechanism 20, and then the micro-guidewire 1 can be pushed to the target position through the patient's blood vessel.

[0049] Reference Figures 4 to 6 In some embodiments of the present utility model, the micro-guidewire clamping mechanism 20 further includes a housing 23, a clamping assembly 22 is disposed in the housing 23, the housing 23 is connected to the output end of the pushing mechanism 30, and the clamping assembly 22 includes a first driving member 221, a clamping jaw 222, and a guidewire clamping column 223. The first driving member 221 is disposed in a cavity inside the housing 23; the clamping jaw 222 is disposed on the output end of the first driving member 221, and the first driving assembly drives the clamping jaw 222 to move relative to or toward each other; the guidewire clamping column 223 is rotatably disposed in the housing 23, a first through hole 2231 is provided at the axis of the guidewire clamping column 223, and the micro-guidewire 1 can be inserted into the first through hole 2231, and a clamping member 2232 is provided at one end of the guidewire clamping column 223, and the clamping jaw 222 can clamp the clamping member 2232 to clamp the micro-guidewire 1. The micro guide wire 1 is inserted into the first through hole 2231, and then the micro guide wire 1 can be clamped or released by the clamping member 2232 at one end of the guide wire clamping column 223. It should be noted that the clamping and releasing of the clamping member 2232 can be driven by the first driving member 221 to drive the clamping jaws 222 to move relative to or toward each other, thereby acting on the clamping member 2232, and finally controlling the clamping and releasing of the micro guide wire 1 by acting on the clamping member 2232.

[0050] Specifically, refer to Figure 6In some embodiments of the present invention, the clamping member 2232 includes: a plurality of guide posts 2232a, a slide plate 2232b and a fixing plate 2232f. The guide post 2232a is arranged on the end surface of one end of the guide wire clamping post 223, and the guide post 2232a extends along the direction of the micro guide wire 1; the slide plate 2232b is slidably mounted on the guide post 2232a, and an elastic member 2232c is mounted on the guide post 2232a, one end of the elastic member 2232c abuts against one end of the slide plate 2232b, and the other end of the elastic member 2232c abuts against one end of the guide wire clamping post 223, and a second through hole 2232d for the micro guide wire 1 to pass through is arranged at the center of the slide plate 2232b, and the first through hole 2231 and the second through hole 2232d are connected to each other. The hole 2232d is coaxially arranged, and a guide hole 2232e is arranged at one end of the second through hole 2232d away from the elastic member 2232c; the fixed plate is fixed at the end of the guide column 2232a, and there is a gap between the fixed plate and the slide plate 2232b, and the clamping end of the clamping claw 222 is located in the gap, and a clamping head 2232g is arranged on the side of the fixed plate facing the slide plate 2232b, and a third through hole 2232h for the micro guide wire 1 to pass through is arranged at the center of the clamping head 2232g, and the clamping head 2232g can be inserted into the guide hole 2232e and the fixed plate 2232f.

[0051] It can be understood that the micro guide wire 1 enters the guide wire clamping column 223 from the end of the first through hole 2231 away from the clamping member 2232, then passes through the other end of the first through hole 2231, and passes through the second through hole 2232d of the slide plate 2232b in the clamping member 2232, then passes through the second through hole 2232d and passes through the third through hole 2232h of the clamping head 2232g, and finally passes through one end of the clamping head 2232g, so that the clamping and release of the micro guide wire 1 can be achieved through the clamping head 2232g.

[0052] In the process of the micro-guidewire 1 from the initial state (the micro-guidewire 1 is in a movable state) to the clamping (the clamping head 2232g clamps the micro-guidewire 1), when the micro-guidewire 1 is in the initial state, the clamping jaws 222 are between the slide plate 2232 and the fixed plate 2232f of the clamping member 2232, and the slide plate 2232b is squeezed by the clamping jaws 222 to squeeze the elastic member 2232c at the other end, and the elastic member 2232c has the elastic potential energy to push back the slide plate 2232b. When the micro-guidewire 1 needs to be clamped, the first driving member 221 drives the clamping jaws 222 to move toward each other, and then releases the fixed plate 2232f and the slide plate 2232b. At this time, the slide plate 2232b is pushed by the elastic potential energy of the elastic member 2232c, and the slide plate 2232b moves along the guide column 2232a toward the fixed plate 2232f. At the same time, the second through hole 2232d in the middle of the slide plate 2232b moves toward the clamping head 2232g of the fixed plate 2232f. Since the end of the second through hole 2232d away from the elastic member 2232c is provided with a guide hole 2232e, it should be noted that the guide hole 2232e is trumpet-shaped, the end facing the clamping head 2232g is the end with a larger caliber, and the end facing the elastic member 2232c is the end with a smaller caliber, and at the same time, the end of the clamping head 2232g facing the second through hole 2232d is cone-shaped. Therefore, when the slide plate 2232b moves along the guide post 2232a toward the fixed plate 2232f, the clamping head 2232g can gradually clamp and close the third through hole 2232h under the guidance of the guide hole 2232e of the second through hole 2232d, and finally clamp the micro guide wire 1 in the third through hole 2232h.

[0053] In the process of the micro-guide wire 1 from the clamping state to the release, when the micro-guide wire 1 needs to be released, the first driving member 221 drives the clamping claw 222 to move relative to each other, so that the clamping claw 222 is clamped in the gap between the fixed plate 2232f and the slide plate 2232b, so that the fixed plate 2232f and the slide plate 2232b are separated from each other, and finally the slide plate 2232b squeezes the elastic member 2232c on the guide column 2232a, and the elastic member 2232c can store the elastic potential energy of the rebound slide plate 2232b. At the same time, the second through hole 2232d can be separated from the clamping head 2232g, and the guide hole 2232e can be separated from the clamping head 2232g, so as to release the clamping head 2232g, and finally the clamping head 2232g is reset, and the third through hole 2232h is reset to release the micro-guide wire 1. It can be understood that the elastic member 2232c described above can be a common light spring, or a rubber sleeve or a silicone sleeve with elasticity.

[0054] However, it should also be emphasized that, in the embodiment of the utility model, through the cooperation of the clamping member 2232 and the first driving member 221, it is only necessary to control the opening and closing of the jaws 222. The clamping jaws 222 can push open the slide plate 2232b of the clamping member 2232, thereby loosening the clamping head 2232g of the fixed plate 2232f, and then loosening the micro guide wire 1; and when the jaws 222 are opened, the elastic force of the elastic member 2232c can push the slide plate 2232b toward the fixed plate 2232f, thereby utilizing the guide hole 2232e on the slide plate 2232b to clamp the clamping head 2232g, thereby clamping the micro guide wire 1.

[0055] At the same time, the rotating assembly 21 in the housing 23 can be used to accurately control the rotation and reversal of the micro-guidewire 1 through the rotation of the rotating assembly 21, and the stable thrust of the elastic member 2232c can prevent the micro-guidewire 1 from slipping during the transportation process. In addition, the micro-guidewire 1 can be advanced or withdrawn by the push mechanism 30.

[0056] Further, in some embodiments of the present invention, referring to Figure 4 as well as Figure 6 The clamping end of the clamping jaw 222 (i.e., the end that abuts against the fixed plate 2232f and the slide plate 2232b) is provided with a guide slope, and the edges of the opposite ends of the fixed plate and the slide plate 2232b are both provided with slopes. The guide slopes abut against each other, which makes it easy for the clamping jaws 222 to move closer to each other and to push the slide plate 2232b away, thereby squeezing the elastic member 2232c.

[0057] Reference Figure 4 as well as Figure 5 In some embodiments of the present utility model, the rotating assembly 21 includes a guide wire clamping sleeve 211 and a first transmission member 212. The guide wire clamping sleeve 211 is sleeved on the outside of the guide wire clamping column 223; the first transmission member 212 is arranged on the lower side of the rotating assembly 21, and the first transmission member 212 includes a first driving wheel 2121, a first driven wheel 2122 and a second driving member 2123, the output end of the second driving member 2123 is connected to the first driving wheel 2121, the first driving wheel 2121 is connected to the first driven wheel 2122, the first driving wheel 2121 drives the first driven wheel 2122 to rotate, and the first driven wheel 2122 is sleeved on the guide wire clamping sleeve 211.

[0058] Specifically, the second driving member 2123 is a micro motor, and its output end drives the first driving wheel 2121 to rotate, thereby driving the first driven wheel 2122 to rotate, and then transmitting the rotational force to the guide wire clamping sleeve 211; since the guide wire clamping sleeve 112 is sleeved on the guide wire clamping column 223, the guide wire clamping sleeve 112 can drive the guide wire clamping column 223 to rotate, thereby driving the guide wire clamping column 223 to rotate and clamp the micro guide wire 1, thereby changing the pushing direction of the micro guide wire 1.

[0059] Furthermore, in some embodiments of the utility model, the first driving wheel 2121 and the first driven wheel 2122 are both pulleys, and the first driving wheel 2121 and the first driven wheel 2122 are driven by the first belt 2124. Compared with gear transmission, the transmission through the first belt 2124 can absorb the vibration generated during the transmission process because the synchronous belt has a certain elasticity, which is beneficial to improving the stability of the operation. It should be noted that the first driving wheel 2121 and the first driven wheel 2122 can also be driven by a gear meshing transmission method, which can complete the rotation of the guide wire clamping sleeve 211, so the transmission form of the first transmission member 212 is not specifically limited.

[0060] Furthermore, in some embodiments of the present invention, the other end of the guide wire clamping column 223 is provided with a screw rod 2233, and a fastening nut 2234 is screwed on the screw rod 2233, and the fastening nut 2234 fixes the guide wire clamping column 223 to the guide wire clamping sleeve 211. The guide wire clamping column 223 is inserted into the guide wire clamping sleeve 211, and one end with the clamping member 2232 abuts against one end of the guide wire clamping sleeve 211, and one end with the screw rod 2233 is inserted through the other end of the guide wire clamping sleeve 211, and then the fastening nut 2234 is screwed on the screw rod 2233, and one end of the fastening nut 2234 can abut against the guide wire clamping sleeve 211 and the shoulder of the guide wire clamping column 223 at the same time, so that the guide wire clamping column 223 can be fastened to the guide wire clamping sleeve 211. When the first transmission member 212 transmits the rotational force to the guidewire clamping sleeve 211 , the rotational force can be smoothly transmitted to the guidewire clamping column 223 , thereby driving the clamped micro guidewire 1 to rotate.

[0061] It can be understood that by loosening the fastening nut 2234, the guide wire clamping column 223 with the screw 2233 can be removed, so that the entire guide wire clamping column 223, including the clamping member 2232, can be replaced, thereby achieving sterile consumable replacement and ensuring the safety of the operation.

[0062] Reference Figure 2 , Figure 4 as well as Figure 5In some embodiments of the present utility model, the micro-guidewire clamping mechanism 20 further includes a detection component 24, which is disposed in the rotating component 21, and the detection component 24 further includes a two-dimensional force sensor 241 and an electric slip ring 242. The two-dimensional force sensor 241 is sleeved on the guidewire clamping sleeve 211, and the first driven wheel 2122 is sleeved on the two-dimensional force sensor 241. The two-dimensional force sensor 241 can detect the force of the guidewire clamping sleeve 211; the electric slip ring 242 is sleeved on the guidewire clamping sleeve 211 and is located at one end of the two-dimensional force sensor 241. The electric slip ring 242 is electrically connected to the two-dimensional force sensor 241, and the electric slip ring 242 provides electrical energy for the two-dimensional force sensor 241.

[0063] When the micro-guidewire 1 is pushed and rotated, the guidewire clamping column 223 is subjected to the reaction force of the rotation and pushing of the micro-guidewire 1, which is then transmitted to the guidewire clamping sleeve 211 through the guidewire clamping column 223, thereby causing the reaction force exerted on the guidewire clamping sleeve 211 to act on the two-dimensional force sensor 241 mounted on the outside thereof, thereby causing the two-dimensional force sensor 241 to detect the thrust and torque exerted on the micro-guidewire 1.

[0064] Reference Figure 1 to Figure 2 In some embodiments of the present invention, the pushing mechanism 30 includes a telescopic cylinder 31 and a driving mechanism 32. The telescopic cylinder 31 is movably arranged on the base 10, and one end of the telescopic cylinder 31 is connected to the micro-guidewire clamping mechanism 20; the driving mechanism 32 is arranged in the base 10, and the output end of the driving mechanism 32 is connected to the other end of the telescopic cylinder 31, and the driving mechanism 32 drives the telescopic cylinder 31 to slide on the base 10. The driving mechanism 32 drives the telescopic cylinder 31 to extend and retract along the direction of the base 10. Pushing the telescopic cylinder 31 forward or backward can push the micro-guidewire clamping mechanism 20, thereby driving the micro-guidewire 1 to be pushed forward or withdrawn backward.

[0065] Reference Figure 1 to Figure 2In some embodiments of the present invention, the driving mechanism 32 includes a third driving member 321 , a second transmission member 322 and a lead screw 3232 member 323 . The third driving member 321 is arranged on the base 10, and a guide rod 11 is arranged on the base 10, and the guide rod 11 extends along the direction of the telescopic cylinder 31; the second transmission member 322 is arranged on the base 10, and the second transmission member 322 includes: a second driving wheel 3221, a second driven wheel 3222 and a second belt 3223, the second driving wheel 3221 and the second driven wheel 3222 are connected through the second belt 3223, and the output end of the third driving member 321 is connected to the second driving wheel 3221; the lead screw 3232 member 323 is arranged on the base 10, and the lead screw 3232 member 323 includes: a nut 3231 and a lead screw 3232, the lead screw 3232 can be inserted into the telescopic cylinder 31, the nut 3231 is screwed on the lead screw 3232 and is located on the outside of the other end of the telescopic cylinder 31, the nut 3231 is slidably connected to the base 10 through the guide rod 11, and one end of the lead screw 3232 is arranged in the second driven wheel 3222. The third driving member 321 is a rotary motor, and its output end can drive the second driving wheel 3221 to rotate, thereby driving the lead screw 3232 to rotate, and the lead screw 3232 can drive the nut 3231 to move along the axial direction of the lead screw 3232, thereby pushing the telescopic cylinder 31 to move, and finally the micro-guide wire clamping mechanism 20 drives the micro-guide wire 1 to push. It should be noted that the second driving wheel 3221 and the second driven wheel 3222 can also be gears, and the lead screw 3232 can also be driven to rotate through the meshing transmission of the gears.

[0066] It should also be noted that the nut 3231 is slidably connected to the base 10 via the guide rod 11, so the telescopic cylinder 31 slides on the base 10 guided by the guide rod 11. Figure 7 In order to facilitate the sliding of the telescopic cylinder 31 on the base 10, rollers can be rotatably provided on both sides of the telescopic cylinder 31. The telescopic cylinder 31 can roll on the base 10 through the rollers to achieve smooth sliding, which is convenient for the smooth pushing of the micro guide wire 1.

[0067] In some embodiments of the present invention, a wiring hole is provided at the bottom of the housing 23. The wiring hole can ensure that the wire harness is not tangled when the micro-guidewire clamping mechanism 20 moves, thereby preventing the movement from being hindered.

[0068] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A micro-guidewire clamping mechanism, characterized in that: include: shell; A rotating assembly, wherein the rotating assembly is arranged in the housing, the micro-guide wire is passed through the rotating assembly, the rotating assembly is used to rotate the micro-guide wire, and the rotating assembly has a clamping portion, and the clamping portion is used to clamp the micro-guide wire; as well as A clamping assembly, the clamping assembly is arranged in the housing and located between the rotating assemblies, the clamping assembly comprises a clamping claw, the clamping claw is used to clamp one end of the rotating assembly, and the clamping claw clamps the clamping part so that the clamping part clamps the micro guide wire; The clamping assembly comprises: a first driving member, the first driving member being disposed in a cavity inside the housing; The clamping jaws are arranged on the output end of the first driving member, and the first driving member drives the clamping jaws to move relative to or towards each other; and A guidewire clamping column, the guidewire clamping column is rotatably arranged in the housing, a first through hole is penetrated at the axis of the guidewire clamping column, the micro guidewire can be inserted into the first through hole, a clamping member is arranged at one end of the guidewire clamping column, and the clamping claw can clamp the clamping member to clamp the micro guidewire; The clamping member comprises: A plurality of guide posts, wherein the guide post ring is arranged on the end surface of one end of the guide wire clamping post, and the guide post extends along the direction of the micro guide wire; A slide plate, wherein the slide plate is slidably mounted on the guide column, an elastic member is mounted on the guide column, one end of the elastic member abuts against one end of the slide plate, and the other end of the elastic member abuts against one end of the guide wire clamping column, a second through hole for the micro guide wire to pass through is arranged at the center of the slide plate, the first through hole is coaxially arranged with the second through hole, and a guide hole is arranged at one end of the first through hole away from the elastic member; and A fixing plate, wherein the fixing plate is fixedly arranged at the end of the guide column, a gap is provided between the fixing plate and the slide plate, the clamping end of the clamping claw is located in the gap, a clamping head is provided on the side of the fixing plate facing the slide plate, a third through hole is provided at the center of the clamping head for the micro guide wire to pass through, and the clamping head can be inserted into the guide hole.

2. The micro-guidewire clamping mechanism according to claim 1, characterized in that: The clamping end of the clamping jaw is provided with a guide inclined surface, and the fixed plate and the edges of one end of the sliding plate that are opposite to each other are both provided with inclined surfaces.

3. The micro-guidewire clamping mechanism according to claim 1, characterized in that: The rotating assembly further comprises: A guide wire clamping sleeve, wherein the guide wire clamping sleeve is sleeved on the outer side of the guide wire clamping column; and A first transmission member, the first transmission member is arranged at the lower side of the rotating component, the first transmission member includes a first driving wheel, a first driven wheel and a second driving member, the output end of the second driving member is connected to the first driving wheel, the first driving wheel is connected to the first driven wheel, the first driving wheel drives the first driven wheel to rotate, and the first driven wheel is sleeved on the guide wire clamping sleeve.

4. The micro-guidewire clamping mechanism according to claim 3, characterized in that: The first driving wheel and the first driven wheel are both pulleys, and the first driving wheel and the first driven wheel are driven by a first belt.

5. The micro-guidewire clamping mechanism according to claim 3, characterized in that: The other end of the guide wire clamping column is provided with a screw rod, and a fastening nut is screwed on the screw rod, and the fastening nut fixes the guide wire clamping column on the guide wire clamping sleeve.

6. The micro-guidewire clamping mechanism according to claim 3, characterized in that: The rotating assembly further includes a detection assembly, which is disposed in the rotating assembly and further includes: a two-dimensional force sensor, wherein the two-dimensional force sensor is sleeved on the guide wire clamping sleeve, the first driven wheel is sleeved on the two-dimensional force sensor, and the two-dimensional force sensor can detect the force applied to the guide wire clamping sleeve; and An electric slip ring is sleeved on the guide wire clamping sleeve and is located at one end of the two-dimensional force sensor. The electric slip ring is electrically connected to the two-dimensional force sensor and provides electrical energy for the two-dimensional force sensor.

7. The micro-guidewire clamping mechanism according to claim 1, characterized in that: A wiring hole is arranged at the bottom of the shell.

Images