CN111202586A - Continuous clamping and rotating method and system of single manipulator for vascular intervention - Google Patents
Continuous clamping and rotating method and system of single manipulator for vascular intervention Download PDFInfo
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- CN111202586A CN111202586A CN202010188603.4A CN202010188603A CN111202586A CN 111202586 A CN111202586 A CN 111202586A CN 202010188603 A CN202010188603 A CN 202010188603A CN 111202586 A CN111202586 A CN 111202586A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/30—Surgical robots
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0102—Insertion or introduction using an inner stiffening member, e.g. stylet or push-rod
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/30—Surgical robots
- A61B2034/301—Surgical robots for introducing or steering flexible instruments inserted into the body, e.g. catheters or endoscopes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/12—Blood circulatory system
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Abstract
The invention provides a method and a system for continuously clamping and transferring a single mechanical arm for vascular intervention, which comprises the following steps: the fixed clamping hand assembly, the wire rotating assembly and the movable clamping assembly are arranged on the fixed clamping head; the fixing clip assembly includes: the device comprises a fixed clamping motor 19, a clamping screw rod 18, a clamping nut 17, a fixed clamping hand 15, a compression spring 16 and a fixed frame 1; the fixed holding motor 19 drives the clamping nut 17 to move downwards by rotating the clamping screw rod 18; the clamping nut 17 pushes the two handles of the scissors-shaped fixed gripper 15; the front end of the fixed clamping hand 15 opens and loosens the guide wire 14; when the clamping nut 17 moves upwards; the steering of the fixed clamping motor 19 can realize the clamping and the loosening of the guide wire 14; the fixed clamping hand assembly is connected with the wire rotating assembly; the movable clamping assembly is connected with the wire rotating assembly. The invention can solve the problem of insufficient range of motion inherent in the original mechanism and meet the requirement of clinical application.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a method and a system for continuously clamping and rotating a single mechanical arm for vascular intervention, and particularly relates to a mechanism for conducting wire guiding operation by cooperation of a fixed clamping hand and a rotating clamping hand, which solves the problem of continuous rotation of an open type wire guiding clamping hand without shaft support.
Background
The vascular interventional operation robot is a master-slave teleoperation robot system, can avoid ray damage of doctors, simultaneously improves operation precision, reduces the fatigue of the doctors, and improves treatment quality by utilizing technologies such as artificial intelligence and the like. When the robot works, a doctor operates a handle or a catheter guide wire at a master end, and the slave manipulator tracks and reproduces the action of the doctor to synchronously perform the operation of the catheter guide wire which intervenes in the human body of a patient. The catheter guidewire moves in the vessel, changes the direction of movement along the vessel wall using rotation, and adjusts position in the vessel using push-pull. The typical physician operation mainly comprises three actions of clamping, rotating and pushing and pulling the guide wire of the catheter. The foremost portion of the guide wire is generally curved, and when the guide wire is rotated, the direction of the curve is changed, so that the guide wire plays a role of direction guidance in the blood vessel. When a doctor operates, the guide wire is generally twisted by using a thumb and an index finger or a middle finger, or the guide wire is clamped by using a nail to rotate, and the rotation range sometimes exceeds 180 degrees. Generally, when a guide wire rotating mechanism is designed, the assembling and disassembling convenience of equipment, the rotating range, the rotating precision and the like need to be considered, and certain difficulty exists in completely realizing the manual operation mode.
Currently, the conventional practice for rotating the guide wire of a surgical robot for vascular intervention is to use two rollers which are pressed against each other and then rotated about the center of symmetry, for example, the products of catheterrobotics, france, CorPath, usa. The greatest advantage of this method is that continuous rotation can be achieved, but the greatest problem is that the clamping method is difficult to assemble and disassemble on the guide wire, the channel is a closed channel, threading is needed when clamping the guide wire, and in addition, the method is difficult to be compatible with various interventional devices on the market at present. In China, the Chinese academy of sciences automatically adopts a roller-to-roller clamping mode, the Beijing university of science institute develops a gear-extrusion type catheter guide wire clamping method, and equipment also needs to pass through a closed special channel. From the research and development of the above information, the design concept of the wire rotating method of the guide wire for vascular intervention is to solve the rotation problem preferentially and then to adopt the clamping method, and the design concept causes incompatibility of equipment and higher difficulty in installing and detaching the guide wire, and no better method is used for making up the incompatibility.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method and a system for continuously clamping and transferring a single mechanical arm for vascular intervention.
According to the invention, the single manipulator continuous clamping and transferring system for vascular intervention comprises: the fixed clamping hand assembly, the wire rotating assembly and the movable clamping assembly are arranged on the fixed clamping head; the fixing clip assembly includes: the device comprises a fixed clamping motor 19, a clamping screw rod 18, a clamping nut 17, a fixed clamping hand 15, a compression spring 16 and a fixed frame 1; the fixed holding motor 19 drives the clamping nut 17 to move downwards by rotating the clamping screw rod 18; the clamping nut 17 pushes the two handles of the scissors-shaped fixed gripper 15;
the front end of the fixed clamping hand 15 opens and loosens the guide wire 14; when the clamping nut 17 moves upwards, the front end of the fixed clamping hand 15 is closed to clamp the guide wire 14 under the action of the compression spring 16; the steering of the fixed clamping motor 19 can realize the clamping and the loosening of the guide wire 14; the fixed clamping hand assembly is connected with the wire rotating assembly; the movable clamping assembly is connected with the wire rotating assembly.
Preferably, the wire rotating assembly comprises: the wire rotating machine comprises a wire rotating motor 2, a wire rotating motor frame, a wire rotating gear component 3, a half-cycle gear 5, a half-cycle slip ring 6 and a sliding chute 4; the wire rotating motor 2 is fixedly connected with the wire rotating motor frame; the rotation direction of the wire-rotating gear component is changed to the direction vertical to the rotating shaft of the wire-rotating motor 2 through the movement of the wire-rotating gear component 3; the wire rotating motor 2 is connected with the wire rotating gear assembly 3; the last stage of straight gear in the wire-rotating gear assembly 3 is meshed with the half-cycle gear 5; the half-cycle gear 5 is fixedly communicated with a half-cycle slip ring 6; the circle centers of the half-cycle gear 5 and the half-cycle slip ring 6 are superposed; the sliding chute 4 is arranged on the fixed frame 1; the half-cycle slip ring 6 can slide in the sliding groove 4; the rotation center of the semi-circle slip ring 6 is the circle center; the semi-circle slip ring 6 can do shaftless support circular motion under the driving of the wire rotating motor 2.
Preferably, the dynamic clamping assembly comprises: the device comprises a support frame 9, a rotary clamping motor 10, a clamping gear set 7, a forward spinning rod 8, a backward spinning rod 13, a nut pair 12 and clamping fingers 11; the movable clamping assembly is fixedly arranged on a half-cycle slip ring 6 of the wire rotating assembly through a support frame 9; the movable clamping assembly integrally rotates along with the sliding rotation of the half-cycle sliding ring 6; the rotary clamping motor 10 is arranged and fixed on the support frame 9; the rotary clamp motor 10 includes: rotating a rotating shaft of a clamping motor; the rotating shaft of the rotating clamping motor drives the clamping gear set 7 to transmit rotation to the forward rotation screw rod 8, the reverse rotation screw rod 13 is connected with the forward rotation screw rod 8, and the reverse rotation screw rod 13 and the forward rotation screw rod 8 can rotate together in the same direction; thus pushing the nut pair 12 screwed on each to move towards or away from each other, the clamping fingers 11 being arranged on the nut pair 12; the clamping fingers 11 move oppositely to clamp the guide wires 14 and move reversely to release the guide wires 14; the centre point of the gripping fingers 11 coincides with the centre of rotation of the semi-circular slip ring 6.
Preferably, the fixed gripper 15 is in a scissors-shaped configuration.
Preferably, the turning gear assembly 3 includes: a drive bevel gear 301, a gear shaft 302, a driven bevel gear 303, a drive spur gear 304, and a bearing 305; the filament rotating motor 2 includes: an output shaft of the wire rotating motor; the output shaft of the wire rotating motor is fixedly connected with the driving bevel gear 301; the driving bevel gear 301 is meshed with the driven bevel gear 303; the gear shaft 302 is respectively and fixedly connected with a driven bevel gear 303 and a driving straight gear 304; two ends of the gear shaft 302 are supported on the fixed frame 1 through bearings 305; the spur gear drive 304 is engaged with the half gear 5.
According to the method for continuously clamping and transferring the single mechanical arm for the blood vessel intervention, which is provided by the invention, the system for continuously clamping and transferring the single mechanical arm for the blood vessel intervention comprises the following steps: step M1: initially, the fixing clamp 15 of the fixing clamp assembly is closed, and the clamping finger 11 is closed; step M2: the clamping fingers 11 are loosened, and the half-cycle slip ring 6 rotates reversely to a reverse limit position under the driving of the wire rotating motor 2; step M3: closing the clamping finger 11, loosening the fixed clamping hand 15, and then enabling the half-cycle slip ring 6 to reach a forward limit position under the forward rotation of the wire rotating motor 2; step M4: the fixed clamping hand 15 is closed, the clamping finger 11 is released, and the half-cycle slip ring 6 is driven to the reverse limit position under the reverse rotation of the wire rotating motor 2.
Preferably, the method further comprises the following steps: step M5: the steps M2 to M4 are repeated to continue the forward rotation of the guidewire 14.
Preferably, the step M2 includes: step M2.1: the clamping fingers 11 are loosened, and the half-cycle slip ring 6 is driven by the wire rotating motor 2 to rotate forwards to a forward limit position.
The step M3 includes: step M3.1: closing the clamping finger 11, loosening the fixed clamping hand 15, and then enabling the half-cycle slip ring 6 to reach a reverse limit position under the reverse rotation of the wire rotating motor 2;
the step M4 includes: step M4.1: the fixed clamping hand 15 is closed, the clamping fingers 11 are released, and the half-cycle slip ring 6 is driven to the positive limit position under the positive rotation of the wire rotating motor 2.
Preferably, the method further comprises the following steps: the step M5 includes:
step M5.1: repeating steps M2 through M4 to continue counter-rotation of the guidewire 14.
Compared with the prior art, the invention has the following beneficial effects:
1. the guide wire rotating mechanism realizes the rotation of the guide wire by the cooperation of the fixed clamping assembly, the movable clamping assembly and the wire rotating assembly, enlarges the movement range of non-shaft supporting rotation, solves the problem of insufficient movement range of the original mechanism, and meets the clinical application requirement.
2. The guide wire can be conveniently assembled and disassembled, for example, when the fixing clamp and the clamping fingers are opened simultaneously, the guide wire can be placed into the guide wire without introducing the guide wire into a closed cavity, and the clinical use is convenient.
3. The wire rotating motor and the fixed clamping motor are arranged in parallel, so that the clamping thickness is effectively reduced, the structure is compact, the space is saved, and the use is convenient.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a transmission diagram of a wire-rotating gear set in the embodiment of the invention.
Fig. 3 is a flowchart illustrating the operation of rotating the filament according to an embodiment of the present invention.
In the figure:
1-fixed frame 8-positive rotation screw rod
2-wire-rotating motor 9-support frame
3-wire-rotating gear component 10-rotating clamping motor
301-drive bevel gear 11-clamping finger
302-gear shaft 12-nut pair
303-driven bevel gear 13-derotation screw rod
304-spur gear 14-guide wire
305-bearing 15-fixed gripper
4-chute 16-hold down spring
5-half-cycle gear 17-clamping nut
6-half-cycle slip ring 18-clamping screw rod
7-clamping gear set 19-fixed clamping motor
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
As shown in fig. 1 to 3, a single manipulator continuous clamping and transferring system for vascular intervention according to the present invention comprises: the fixed clamping hand assembly, the wire rotating assembly and the movable clamping assembly are arranged on the fixed clamping head; the fixing clip assembly includes: the device comprises a fixed clamping motor 19, a clamping screw rod 18, a clamping nut 17, a fixed clamping hand 15, a compression spring 16 and a fixed frame 1; the fixed holding motor 19 drives the clamping nut 17 to move downwards by rotating the clamping screw rod 18; the clamping nut 17 pushes the two handles of the scissors-shaped fixed gripper 15;
the front end of the fixed clamping hand 15 opens and loosens the guide wire 14; when the clamping nut 17 moves upwards, the front end of the fixed clamping hand 15 is closed to clamp the guide wire 14 under the action of the compression spring 16; the steering of the fixed clamping motor 19 can realize the clamping and the loosening of the guide wire 14; the fixed clamping hand assembly is connected with the wire rotating assembly; the movable clamping assembly is connected with the wire rotating assembly.
Preferably, the wire rotating assembly comprises: the wire rotating machine comprises a wire rotating motor 2, a wire rotating motor frame, a wire rotating gear component 3, a half-cycle gear 5, a half-cycle slip ring 6 and a sliding chute 4; the wire rotating motor 2 is fixedly connected with the wire rotating motor frame; the rotation direction of the wire-rotating gear component is changed to the direction vertical to the rotating shaft of the wire-rotating motor 2 through the movement of the wire-rotating gear component 3; the wire rotating motor 2 is connected with the wire rotating gear assembly 3; the last stage of straight gear in the wire-rotating gear assembly 3 is meshed with the half-cycle gear 5; the half-cycle gear 5 is fixedly communicated with a half-cycle slip ring 6; the circle centers of the half-cycle gear 5 and the half-cycle slip ring 6 are superposed; the sliding chute 4 is arranged on the fixed frame 1; the half-cycle slip ring 6 can slide in the sliding groove 4; the rotation center of the semi-circle slip ring 6 is the circle center; the semi-circle slip ring 6 can do shaftless support circular motion under the driving of the wire rotating motor 2.
Preferably, the dynamic clamping assembly comprises: the device comprises a support frame 9, a rotary clamping motor 10, a clamping gear set 7, a forward spinning rod 8, a backward spinning rod 13, a nut pair 12 and clamping fingers 11; the movable clamping assembly is fixedly arranged on a half-cycle slip ring 6 of the wire rotating assembly through a support frame 9; the movable clamping assembly integrally rotates along with the sliding rotation of the half-cycle sliding ring 6; the rotary clamping motor 10 is arranged and fixed on the support frame 9; the rotary clamp motor 10 includes: rotating a rotating shaft of a clamping motor; the rotating shaft of the rotating clamping motor drives the clamping gear set 7 to transmit rotation to the forward rotation screw rod 8, the reverse rotation screw rod 13 is connected with the forward rotation screw rod 8, and the reverse rotation screw rod 13 and the forward rotation screw rod 8 can rotate together in the same direction; thus pushing the nut pair 12 screwed on each to move towards or away from each other, the clamping fingers 11 being arranged on the nut pair 12; the clamping fingers 11 move oppositely to clamp the guide wires 14 and move reversely to release the guide wires 14; the centre point of the gripping fingers 11 coincides with the centre of rotation of the semi-circular slip ring 6.
Preferably, the fixed gripper 15 is in a scissors-shaped configuration.
Preferably, the turning gear assembly 3 includes: a drive bevel gear 301, a gear shaft 302, a driven bevel gear 303, a drive spur gear 304, and a bearing 305; the filament rotating motor 2 includes: an output shaft of the wire rotating motor; the output shaft of the wire rotating motor is fixedly connected with the driving bevel gear 301; the driving bevel gear 301 is meshed with the driven bevel gear 303; the gear shaft 302 is respectively and fixedly connected with a driven bevel gear 303 and a driving straight gear 304; two ends of the gear shaft 302 are supported on the fixed frame 1 through bearings 305; the spur gear drive 304 is engaged with the half gear 5.
Specifically, in one embodiment, a structural assembly for realizing continuous clamping rotation of a single manipulator for vascular intervention, as shown in fig. 1, includes a fixed clamping hand assembly composed of a fixed clamping motor 19, a clamping screw 18, a clamping nut 17, a fixed clamping hand 15, a compression spring 16 and a fixed frame 1, a wire rotating assembly composed of a wire rotating motor 2, a wire rotating gear assembly 3, a half-cycle gear 5, a half-cycle slip ring 6 and a sliding chute 4, and a movable clamping assembly composed of a support frame 9, a rotating clamping motor 10, a clamping gear set 7, a forward-rotation screw 8, a reverse-rotation screw 13, a nut pair 12 and a clamping finger 11.
In the fixed gripper assembly of fig. 1, an output shaft of a fixed gripper motor 19 is connected to a gripper screw 18, and when the fixed gripper motor 19 rotates, a gripper nut 17 screwed onto the gripper screw 18 moves up and down. When moving downwards, the two handles of the fixed clamping hand 15 are pushed to be opened, and the guide wire 14 is loosened; when moving upwards, the two handles of the fixed gripper 15 grip the guide wire under the pressure of the compression spring 16.
In the silk turning component shown in fig. 1, a silk turning motor 2 is fixed on a rack, the rotation direction of the silk turning motor 2 is changed to the direction vertical to the rotating shaft of the silk turning motor 2 through a silk turning gear component 3, a last stage straight gear in the silk turning gear component 3 is meshed with a semi-circle gear 5, the semi-circle gear 5 is fixed on a semi-circle slip ring 6, the two are concentric, the semi-circle slip ring 6 is fixed in a sliding groove 4 on the rack 1 to rotate in a sliding mode, the rotation center is the circle center of the semi-circle slip ring, and the semi-circle slip ring 6 realizes shaftless supporting circular motion under the driving of the silk turning.
In the movable clamping assembly shown in fig. 1, a support frame 9 is fixedly mounted on a half-circumference slip ring 6 of a wire rotating assembly, the support frame is used for fixedly supporting a rotary clamping motor 10, a positive rotation screw rod 8 and a negative rotation screw rod 13 at the same time, an output shaft of the rotary clamping motor 10 and an end shaft of the positive rotation screw rod 8 are driven by a clamping gear set 7 meshed with a set of spur gears, a nut pair 12 is respectively screwed and mounted on the two screw rods, when the rotary clamping motor 10 rotates, the positive rotation screw rod 8 and the negative rotation screw rod 13 rotate in the same direction, but the two nut pairs 12 move in opposite directions or in opposite directions, and then two clamping fingers 11 mounted on the two nut pairs 12 move in opposite directions or in opposite directions, so as to clamp a guide wire 14 or loosen the guide wire 14. In the design, the screw pitches of the forward screw rod 8 and the backward screw rod 13 are the same and are synchronously driven by the rotating clamping motor 10, so that the distance for the two nut pairs 12 to move towards or away from each other is the same, and the centers of the two clamping fingers 11 can be kept unchanged. In the design, this center is also the center of the circle and the center of rotation of the half-cycle slip ring 6.
In fig. 1, the movable clamping assembly is mounted on the semi-circle slip ring 6 of the wire rotating assembly through the supporting frame 9, when the semi-circle slip ring 6 of the wire rotating assembly rotates, the movable clamping assembly is driven to rotate together, if the movable clamping assembly clamps the guide wire 14, the axis of the guide wire 14 is the clamping center, and is also the rotation center of the semi-circle slip ring 6, so that the guide wire 14 can rotate along the axis of the guide wire 14.
The transmission diagram of the wire rotating motor 2 to the half-cycle gear 5 in the single manipulator for vascular intervention is shown in fig. 2, the wire rotating motor 2 is fixed on the frame 1, the output shaft of the wire rotating motor is fixedly connected with the driving bevel gear 301 and meshed with the driven bevel gear 303, the driven bevel gear 303 and the driving spur gear 304 are fixed on the gear shaft 302, two ends of the gear shaft 302 are supported on the frame 1 through bearings 305, and the driving spur gear 304 is meshed with the half-cycle gear 5.
According to the method for continuously clamping and transferring the single mechanical arm for the blood vessel intervention, which is provided by the invention, the system for continuously clamping and transferring the single mechanical arm for the blood vessel intervention comprises the following steps: step M1: initially, the fixing clamp 15 of the fixing clamp assembly is closed, and the clamping finger 11 is closed; step M2: the clamping fingers 11 are loosened, and the half-cycle slip ring 6 rotates reversely to a reverse limit position under the driving of the wire rotating motor 2; step M3: closing the clamping finger 11, loosening the fixed clamping hand 15, and then enabling the half-cycle slip ring 6 to reach a forward limit position under the forward rotation of the wire rotating motor 2; step M4: the fixed clamping hand 15 is closed, the clamping finger 11 is released, and the half-cycle slip ring 6 is driven to the reverse limit position under the reverse rotation of the wire rotating motor 2.
Preferably, the method further comprises the following steps: step M5: the steps M2 to M4 are repeated to continue the forward rotation of the guidewire 14.
Preferably, the step M2 includes: step M2.1: the clamping fingers 11 are loosened, and the half-cycle slip ring 6 is driven by the wire rotating motor 2 to rotate forwards to a forward limit position.
The step M3 includes: step M3.1: closing the clamping finger 11, loosening the fixed clamping hand 15, and then enabling the half-cycle slip ring 6 to reach a reverse limit position under the reverse rotation of the wire rotating motor 2;
the step M4 includes: step M4.1: the fixed clamping hand 15 is closed, the clamping fingers 11 are released, and the half-cycle slip ring 6 is driven to the positive limit position under the positive rotation of the wire rotating motor 2.
Preferably, the method further comprises the following steps: the step M5 includes:
step M5.1: repeating steps M2 through M4 to continue counter-rotation of the guidewire 14.
Specifically, in one embodiment, a process for implementing a single-manipulator continuous clamping and transferring method for vascular intervention is shown in fig. 3. In fig. 3(a), the stationary gripper 15 of the stationary assembly, both gripping fingers 11 grip the guide wire 14; in fig. 3(b), the stationary gripper 15 of the stationary assembly releases the guide wire 14; in fig. 3(c), the wire rotating assembly drives the movable clamping assembly for clamping the guide wire 14 to rotate forward to the limit position, so that the leading end of the guide wire 14 has a change of angle; in fig. 3(d), the stationary clamp gripper 15 of the stationary assembly closes the clamping wire 14; in fig. 3(e), two clamping fingers 11 in the movable clamping assembly release the guide wire 14; in fig. 3(f), the wire rotating assembly drives the movable clamping assembly to rotate reversely to the limit position; in fig. 3(g), two clamping fingers 11 in the movable clamping assembly clamp the guide wire 14; in fig. 3(h), the stationary gripper 15 of the stationary assembly releases the guide wire 14; in fig. 3(i), the wire rotating assembly drives the movable clamping assembly for clamping the guide wire 14 to rotate forward to the middle position, and the leading end of the guide wire 14 has a change of angle; thereafter, the fixing clamp 15 of the fixing assembly closes the clamp wire 14 into the state of fig. 3 (a).
In fig. 3, (a) - (b) - (c) - (d) - (e) - (f) - (g) - (h) - (i) - (a) complete a forward pinch cycle, and continuous forward pinch can be achieved by repeating the cycle. (a) And (b) - (h) - (g) - (f) - (e) - (d) - (c) - (i) - (a) complete a reverse pinch cycle, and continuous reverse pinch can be realized by repeating the cycle.
The guide wire rotating mechanism realizes the rotation of the guide wire through the cooperation of the fixed clamping assembly, the movable clamping assembly and the wire rotating assembly, enlarges the movement range of non-shaft supporting rotation, solves the problem of insufficient movement range of the original mechanism, and meets the clinical application requirement; the guide wire can be conveniently assembled and disassembled, for example, when the fixing clamp and the clamping fingers are opened simultaneously, the guide wire can be placed without being introduced into a closed cavity, and the clinical use is convenient; the wire rotating motor and the fixed clamping motor are arranged in parallel, so that the clamping thickness is effectively reduced, the structure is compact, the space is saved, and the use is convenient.
Those skilled in the art will appreciate that, in addition to implementing the system and its various devices, units provided by the present invention as pure computer readable program code, the system and its various devices, units provided by the present invention can be fully enabled to implement the same functions by logically programming the method steps in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Therefore, the system and various devices, units and units thereof provided by the invention can be regarded as a hardware component, and the devices, units and units included in the system for realizing various functions can also be regarded as structures in the hardware component; means, elements, units for performing various functions may also be regarded as structures within both software and hardware components for performing the method.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (9)
1. The utility model provides a vascular intervention is with continuous clamping of single manipulator system of changeing which characterized in that includes: the fixed clamping hand assembly, the wire rotating assembly and the movable clamping assembly are arranged on the fixed clamping head;
the fixing clip assembly includes: a fixed clamping motor (19), a clamping screw rod (18), a clamping nut (17), a fixed clamping hand (15), a compression spring (16) and a fixed frame (1);
the fixed clamping motor (19) drives the clamping nut (17) to move downwards by rotating the clamping screw rod (18);
the clamping nut (17) pushes the fixed clamping hand (15);
the front end of the fixed clamping hand (15) is opened to loosen the guide wire (14);
when the clamping nut (17) moves upwards, the front end of the fixed clamping hand (15) closes and clamps the guide wire (14) under the action of the compression spring (16);
the steering of the fixed clamping motor (19) can realize the clamping and the loosening of the guide wire (14);
the fixed clamping hand assembly is connected with the wire rotating assembly;
the movable clamping assembly is connected with the wire rotating assembly.
2. The robotic continuous clamping and transferring system for vascular intervention of claim 1, wherein the wire transfer assembly comprises: the wire rotating machine comprises a wire rotating motor (2), a wire rotating motor frame, a wire rotating gear component (3), a half-cycle gear (5), a half-cycle slip ring (6) and a sliding chute (4);
the wire rotating motor (2) is fixedly connected with the wire rotating motor frame;
the wire rotating motor (2) is connected with the wire rotating gear component (3);
a first-stage straight gear in the wire-rotating gear assembly (3) is meshed with the semi-cycle gear (5);
the half-cycle gear (5) is tightly communicated with a half-cycle slip ring (6);
the circle centers of the half-cycle gear (5) and the half-cycle slip ring (6) are overlapped;
the sliding chute (4) is arranged on the fixed rack (1); the half-cycle slip ring (6) can slip in the sliding groove (4);
the semi-circle slip ring (6) can do shaftless supporting circular motion under the driving of the wire rotating motor (2).
3. The robotic continuous clamping and rotating system for vascular intervention of claim 2, wherein the dynamic clamping assembly comprises: the device comprises a support frame (9), a rotary clamping motor (10), a clamping gear set (7), a forward spinning rod (8), a backward spinning rod (13), a nut pair (12) and a clamping finger (11);
the movable clamping assembly is arranged on a half-cycle slip ring (6) of the wire rotating assembly through a support frame (9);
the movable clamping assembly integrally rotates along with the sliding rotation of the half-cycle sliding ring (6);
the rotary clamping motor (10) is arranged (fixed) on the support frame (9);
the rotary clamping motor (10) comprises: rotating a rotating shaft of a clamping motor;
the rotating shaft of the rotating clamping motor drives the clamping gear set (7) to transmit the rotation to the positive spinning screw rod (8),
the reverse rotation screw rod (13) is connected with the forward rotation screw rod (8),
the reverse rotation screw rod (13) and the forward rotation screw rod (8) can rotate together in the same direction;
the clamping finger (11) is arranged on the nut pair (12);
the clamping fingers (11) move oppositely to clamp the guide wire (14) and move oppositely to release the guide wire (14);
the center point of the clamping finger (11) is coincided with the rotation center of the semi-circle slip ring (6).
4. The robotic continuous clamping and rotating system for vascular interventions according to claim 1, characterized by the fact that the fixation clamp (15) adopts a scissors-shaped structure.
5. The single-manipulator continuous clipping-rotating system for vascular intervention according to claim 2, wherein the wire-rotating gear assembly (3) comprises: the bevel gear mechanism comprises a driving bevel gear (301), a gear shaft (302), a driven bevel gear (303), a driving straight gear (304) and a bearing (305);
the wire rotating motor (2) comprises: an output shaft of the wire rotating motor;
the output shaft of the wire rotating motor is fixedly connected with a driving bevel gear (301);
the driving bevel gear (301) is meshed with the driven bevel gear (303);
the gear shaft (302) is respectively and fixedly connected with the driven bevel gear (303) and the driving straight gear (304);
two ends of the gear shaft (302) are supported on the fixed frame (1) through bearings (305);
the driving spur gear (304) is meshed with the half-cycle gear (5).
6. A method for continuously clamping and transferring a single mechanical arm for vascular intervention, which is characterized in that the system for continuously clamping and transferring a single mechanical arm for vascular intervention according to any one of claims 1 to 5 is adopted, and comprises the following steps:
step M1: closing a fixed gripper (15) of the fixed gripper assembly and closing the gripping fingers (11);
step M2: the clamping finger (11) is loosened, and the half-cycle slip ring (6) is driven by the wire rotating motor (2) to rotate reversely to a reverse limit position;
step M3: the clamping finger (11) is closed, the fixed clamping hand (15) is loosened, and then the semi-circle slip ring (6) reaches a forward limit position under the forward rotation of the wire rotating motor (2);
step M4: the fixed clamping hand (15) is closed, the clamping finger (11) is loosened, and the half-cycle slip ring (6) is driven to the reverse limit position under the reverse rotation of the wire rotating motor (2).
7. The method of claim 6, further comprising:
step M5: and repeating the steps M2 to M4 to continuously rotate the guide wire (14) in the forward direction.
8. The method of claim 7, wherein the step M2 includes:
step M2.1: the clamping finger (11) is loosened, and the half-cycle slip ring (6) is driven by the wire rotating motor (2) to rotate forwards to a forward limit position;
the step M3 includes:
step M3.1: closing the clamping finger (11), loosening the fixed clamping hand (15), and then enabling the half-cycle slip ring (6) to reach a reverse limit position under the reverse rotation of the wire rotating motor (2);
the step M4 includes:
step M4.1: the fixed clamping hand (15) is closed, the clamping finger (11) is loosened, and the half-cycle slip ring (6) is driven to the positive limit position under the positive rotation of the wire rotating motor (2).
9. The method of claim 8, further comprising: the step M5 includes:
step M5.1: and repeating the steps M2 to M4 to continuously and reversely rotate the guide wire (14).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010188603.4A CN111202586A (en) | 2020-03-17 | 2020-03-17 | Continuous clamping and rotating method and system of single manipulator for vascular intervention |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010188603.4A CN111202586A (en) | 2020-03-17 | 2020-03-17 | Continuous clamping and rotating method and system of single manipulator for vascular intervention |
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| CN111202586A true CN111202586A (en) | 2020-05-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023160185A1 (en) * | 2022-02-23 | 2023-08-31 | 上海奥朋医疗科技有限公司 | Guidewire catheter delivering device |
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