CN115025366B - Medical catheter and rotary cutting method thereof - Google Patents
Medical catheter and rotary cutting method thereof Download PDFInfo
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- CN115025366B CN115025366B CN202210766995.7A CN202210766995A CN115025366B CN 115025366 B CN115025366 B CN 115025366B CN 202210766995 A CN202210766995 A CN 202210766995A CN 115025366 B CN115025366 B CN 115025366B
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- rotary cutting
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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
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
- A61B17/320758—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with a rotating cutting instrument, e.g. motor driven
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
- A61B17/320783—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions through side-hole, e.g. sliding or rotating cutter inside catheter
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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
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
- A61B2017/00398—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like using powered actuators, e.g. stepper motors, solenoids
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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
- A61M2025/0019—Cleaning catheters or the like, e.g. for reuse of the device, for avoiding replacement
-
- 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
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M2025/0042—Microcatheters, cannula or the like having outside diameters around 1 mm or less
Abstract
The invention discloses a medical catheter and a rotary cutting method thereof, belonging to the technical field of catheter processing, and comprising a workbench, an air pump, a screw rod sliding table, a moving frame, a fixed limiting device, a driving device, a rotary cutting device, a transmission device and a cleaning device, wherein the moving frame is arranged at the driving end of the screw rod sliding table, the air pump is fixed on the moving frame, the rotary cutting device is arranged on the workbench, the driving device is arranged on the rotary cutting device, the transmission device is arranged on the rotary cutting device, the fixed limiting devices are provided with a plurality of fixed limiting devices, the fixed limiting devices are uniformly arranged on the transmission device in a surrounding manner, and the cleaning device is arranged on the moving frame and connected with the air outlet end of the air pump.
Description
Technical Field
The invention relates to the technical field of catheter processing, in particular to a medical catheter and a rotary cutting method thereof.
Background
When a catheter is inserted into a living body lumen such as a digestive tract or a blood vessel, a guide wire is used to guide the catheter to a target site of the living body lumen. The guide wire is inserted into a catheter for use. In addition, observation and treatment of a living body lumen or the like using an endoscope are also performed using a guide wire, and the endoscope and a catheter inserted into a lumen of the endoscope are also guided to a target site such as a living body lumen using the guide wire.
The cross section of a catheter product in the medical apparatus is of a multilayer structure, the axial length of each layer is different, and a certain layer needs to be cut or trimmed in the production process. Because the pipe material is softer and the size is less, has higher to the size precision requirement simultaneously, directly prune and easily lead to the fluff thorn, the circularity is not enough.
According to CN214323459U, this patent document discloses a catheter rotary cutting device, which limits and rotates a catheter, so as to perform rotary cutting operation on the catheter by adjusting a blade up and down, and the device has the following defects that firstly, when the catheter is subjected to rotary cutting operation through the blade in the rotation process, because the catheter is soft, the blade is likely to deviate on the other surface of the catheter after contacting the catheter, so that the rotary cutting of the catheter is not perpendicular, fluffing and roundness are not sufficient, secondly, only a single catheter can be subjected to independent rotary cutting, the production efficiency of the rotary cutting of the catheter is reduced, and thirdly, waste scraps can be generated after the rotary cutting of the catheter is completed, and the waste scraps are likely to fly into the catheter which has just been subjected to rotary cutting blanking, so that the catheter can be blocked, and the subsequent normal use is affected.
Disclosure of Invention
The embodiment of the invention provides a medical catheter and a rotary cutting method thereof, which aim to solve the technical problems.
The embodiment of the invention adopts the following technical scheme: a medical catheter includes a medical catheter body, which is typically about 0.5 to 10 mm in diameter and is divided into single and multi-lumen medical catheters.
A rotary cutting method of a medical catheter comprises the following preparation method steps:
the first step, there are work level, air pump, lead screw slip table, move the shelf, fix the stop device, the drive unit, rotary cutting device, drive unit and cleaning device, when turning the operation to the synchronous rotary cutting of a plurality of pipes, pass the necessary a plurality of pipes through the correspondent rotary-cut groove at first, and pass a plurality of fixed limiting plates, after placing it in the necessary rotary-cut position, drive the flexible movement of drive disc on the flexible end of the drive hydraulic cylinder through the operation of the drive unit, thus drive a plurality of driving blocks on the drive disc to move telescopically, thus drive a plurality of driving pieces to move telescopically, a plurality of driving pieces flexible movement drive the correspondent fixed limiting plate, thus drive a plurality of fixed limiting pieces to move, a plurality of telescopic links are in the mating state, thus fix the correspondent pipe spacing through a plurality of fixed limiting pieces, in order to facilitate the subsequent rotary cutting operation;
after the plurality of guide tubes are fixed and limited, the rotary cutting motor on the rotary cutting base operates to drive the rotary cutting shaft on the output end of the rotary cutting motor to rotate, the rotary cutting shaft rotates to drive the rotary cutting tool to rotate, so that the plurality of guide tubes are subjected to rotary cutting operation, and the rotary cutting shaft rotates to synchronously drive the transmission gear on the transmission frame to rotate;
thirdly, the rotating directions of the transmission gear and the rotary cutting tool are the same, and each fixed limiting device is driven to rotate by the transmission gear, so that the rotating directions of each fixed limiting device and the rotary cutting tool are opposite, and therefore, the rotating directions of the plurality of guide pipes and the rotary cutting tool are the same, so that when the rotary cutting tool is used for rotary cutting the plurality of guide pipes, the guide pipes can be quickly subjected to rotary cutting by reacting force, and the rotary cutting quality and efficiency are improved;
fourthly, the rotary cutting length of the guide pipes is different in each time, so that when the plurality of guide pipes are subjected to rotary cutting operation, after the head ends of the plurality of guide pipes penetrate through the corresponding matching grooves, the required rotary cutting size can be obtained according to the size of the head ends of the guide pipes, and meanwhile, the rotary cutting matching frame can also play a role in limiting the plurality of guide pipes;
fifthly, after the needed rotary cutting position of the plurality of pipes is adjusted, the moving frame on the screw rod sliding table is driven to move towards the plurality of pipes through the operation of the screw rod sliding table, so that the air pump and the cleaning frame on the moving frame are driven to move, the fixing frame on the cleaning frame is driven to move, the air outlets of the plurality of cleaning pipelines respectively penetrate through the head ends of the corresponding pipes, at the moment, air is generated through the operation of the air pump, the air outlet end of the air pump is discharged into the plurality of cleaning pipelines, the air outlets of the plurality of cleaning pipelines are discharged into the corresponding pipes, at the moment, when a rotary cutting tool carries out rotary cutting operation on the plurality of pipes, waste chips and burrs generated by rotary cutting can be blown out, a cleaning effect is achieved on the pipes which are subjected to rotary cutting, the blockage of the pipes is avoided, and the subsequent normal use is influenced.
The sixth step, after a plurality of pipes passed corresponding spiral-cut groove and cooperation groove, when the clean pipeline of a plurality of on the frame was removed in the drive of lead screw slip table, can insert the head end of the pipe that corresponds through the clean pipeline of a plurality of accurately, because the pipe belongs to softer material, and can probably cause the pipe skew when rotary-cut cutter rotary-cut operation, and the operation through the air pump discharges the gas of air pump in the pipe that corresponds through the clean pipeline of a plurality of, can increase the intensity of pipe, thereby produce the skew when having avoided the rotary-cut pipe, can not cause other factors such as rotary-cut out of plumb, the effectual quality that improves the product.
Further, the workstation is the level setting, the lead screw slip table sets up on the workstation, it sets up on the drive end of lead screw slip table to remove the frame, the air pump is fixed on removing the frame, rotary-cut device sets up on the workstation and is located the side of lead screw slip table, drive arrangement sets up on rotary-cut device, transmission sets up on rotary-cut device, fixed stop device is equipped with a plurality of, a plurality of fixed stop device evenly encircles the setting on transmission, cleaning device sets up on removing the frame and is connected with the end of giving vent to anger of air pump.
Further, the rotary cutting device comprises a rotary cutting base, a rotary cutting motor, a rotary cutting shaft and a rotary cutting tool, wherein the rotary cutting base is arranged on the workbench, the rotary cutting motor is arranged on the rotary cutting base, the rotary cutting shaft is arranged at the output end of the rotary cutting motor, and the rotary cutting tool is arranged on the rotary cutting shaft.
Further, transmission device includes driving frame and drive gear, the driving frame sets up on the workstation and is located the side of rotary-cut seat, be equipped with the through groove on the driving frame, still be equipped with a plurality of on the driving frame and revolve the grooving, drive gear cover is established on revolving the cutting axle and is connected for rotating with the driving frame.
Furthermore, drive arrangement includes drive hydraulic cylinder, driver disc, drive block and driving piece, be equipped with a plurality of driving groove on the driving frame, drive hydraulic cylinder sets up on rotary-cut seat, the driver disc is connected and is located the side of driving frame on the flexible end of drive hydraulic cylinder, the drive block is equipped with a plurality of, a plurality of the one end of drive block is laid evenly in the outside of driver disc, the driving piece is equipped with a plurality of, a plurality of the one end of driving piece is connected respectively on corresponding drive block, a plurality of the other end of driving piece passes corresponding driving groove respectively, the driver disc lower extreme is sliding fit with the workstation.
Further, every fixed stop device all includes fixed spacing post, telescopic link, fixed stopper, fixed locating part and fixed limiting plate, fixed spacing post setting on the gear frame and be connected for rotating with the gear frame, be equipped with the tooth with drive gear meshing on the fixed spacing post, the quantity of tooth is a plurality of times of the quantity of tooth on the fixed spacing post on the drive gear, fixed locating part is equipped with a plurality of, a plurality of the one end of fixed locating part evenly encircles and sets up in the outside of fixed spacing post and is the rotation and connect, fixed limiting plate sets up the side at fixed spacing post, fixed stopper is equipped with a plurality of, a plurality of the one end of fixed stopper evenly encircles and connects and be the rotation connection in the eccentric center position of the fixed locating part that corresponds, a plurality of the other end of fixed stopper evenly encircles and connects in the outside of fixed limiting plate and be the rotation connection, a plurality of the other end of driving piece is connected respectively on the fixed limiting plate that corresponds and all is connected for rotating with fixed limiting plate.
The rotary cutting device is characterized by further comprising a rotary cutting matching frame, the rotary cutting matching frame is arranged at the side end of the transmission frame, a plurality of matching grooves are formed in the rotary cutting matching frame, the rotary cutting tool is located between the rotary cutting matching frame and the transmission frame, and the rotary cutting tool and the rotary cutting matching frame are close to each other and close to a mutually-jointed state.
Further, cleaning device is including cleaning frame, mount and clean pipeline, cleaning frame sets up on removing the frame, the end of giving vent to anger of air pump passes cleaning frame and carries on spacingly through cleaning frame, the mount is connected on removing the frame and is located the side of rotary-cut cooperation frame, be equipped with a plurality of fixed slot on the mount, clean pipeline is equipped with a plurality of, a plurality of the air inlet of clean pipeline is all connected and is served at giving vent to anger of air pump, a plurality of corresponding fixed slot is passed respectively to clean pipeline's gas outlet.
Furthermore, a plurality of rotary cutting grooves on the transmission frame, a plurality of matching grooves on the rotary cutting matching frame and a plurality of fixing grooves on the fixing frame are respectively in one-to-one correspondence.
The embodiment of the invention adopts at least one technical scheme which can achieve the following beneficial effects:
firstly, after the fixing and limiting of the plurality of guide tubes are completed, the rotary cutting motor on the rotary cutting base operates to drive the rotary cutting shaft on the output end of the rotary cutting motor to rotate, the rotary cutting shaft rotates to drive the rotary cutting tool to rotate, so that the rotary cutting operation is performed on the plurality of guide tubes, and the rotary cutting shaft rotates to synchronously drive the transmission gear on the transmission frame to rotate; the rotating directions of the transmission gear and the rotary cutting tool are the same, and each fixed limiting device is driven to rotate by the transmission gear, so that the rotating directions of each fixed limiting device and the rotary cutting tool are opposite, and therefore, when the rotary cutting tool is used for rotary cutting a plurality of guide pipes, the guide pipes can be quickly rotary cut by reacting force, and the rotary cutting quality and efficiency are improved.
Secondly, after the required rotary-cut position adjustment of a plurality of pipes is completed, the moving frame on the screw rod sliding table is driven to move towards the plurality of pipes through the operation of the screw rod sliding table, so that the air pump and the cleaning frame on the moving frame are driven to move, the fixing frame on the cleaning frame is driven to move, the air outlets of a plurality of cleaning pipelines respectively penetrate through the head ends of the corresponding pipes, at the moment, air is generated through the operation of the air pump, the air outlet end of the air pump discharges into the plurality of cleaning pipelines, the air outlets of the plurality of cleaning pipelines discharge into the corresponding pipes, at the moment, when a rotary-cut cutter performs rotary-cut operation on the plurality of pipes, waste chips and burrs generated by rotary-cutting can be blown out, so that a cleaning effect is achieved on the pipes after rotary-cut, the blockage of the pipes is avoided, and the subsequent normal use is influenced.
Third, when the clean pipeline of a plurality of on lead screw slip table drive removal frame removed, can accurately insert the head end of the pipe that corresponds through the clean pipeline of a plurality of, because the pipe belongs to softer material, and can cause the pipe skew when rotary-cut cutter rotary-cut operation, and the operation through the air pump discharges the gas of air pump into in the pipe that corresponds through the clean pipeline of a plurality of, can increase the intensity of pipe, thereby produce the skew when having avoided the rotary-cut pipe, can not cause other factors such as rotary-cut out of plumb, the effectual quality that improves the product.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a diagram of a product of the present invention;
FIG. 2 is a first perspective view of the present invention;
FIG. 3 is a schematic perspective view of the present invention;
fig. 4 is a schematic perspective view of the rotary cutting device of the present invention;
FIG. 5 is a schematic perspective view of the present invention;
fig. 6 is a schematic perspective view of the rotary cutting device, the fixed limiting device and the transmission device according to the present invention;
FIG. 7 is a schematic perspective view of the fixing and limiting device and the driving device according to the present invention;
FIG. 8 is a partial perspective view of the first embodiment of the present invention;
FIG. 9 is a schematic perspective view of the air pump and the cleaning device of the present invention;
FIG. 10 is a partial perspective view of the second embodiment of the present invention;
fig. 11 is an enlarged view of fig. 7 at a.
Reference numerals
The medical catheter comprises a workbench 1, an air pump 11, a screw rod sliding table 12, a moving frame 13, a rotary cutting matching frame 14, a matching groove 15, a medical catheter body 16, a rotary cutting device 2, a rotary cutting base 21, a rotary cutting motor 22, a rotary cutting shaft 23, a rotary cutting tool 24, a transmission device 3, a transmission frame 31, a rotary cutting groove 312, a driving groove 313, a transmission gear 32, a driving device 4, a driving hydraulic cylinder 41, a driving disc 42, a driving block 43, a driving piece 44, a fixed limiting device 5, a fixed limiting column 51, an expansion link 52, a fixed limiting block 53, a fixed limiting block 54, a fixed limiting block 55, a cleaning device 6, a cleaning frame 61, a fixed frame 62, a fixed groove 621 and a cleaning pipeline 63.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1-11, the present invention provides a medical catheter and a rotary cutting method thereof, including a medical catheter body 16, wherein the diameter of the medical catheter body 16 is usually about 0.5 mm-10 mm, and the medical catheter is divided into a single lumen and a multi-lumen.
A rotary cutting method of a medical catheter comprises the following preparation method steps:
the first step, a workbench 1, an air pump 11, a screw rod sliding table 12, a moving frame 13, a fixed limiting device 5, a driving device 4, a rotary cutting device 2, a transmission device 3 and a cleaning device 6 are arranged, when a plurality of catheters are subjected to synchronous rotary cutting operation, firstly, a plurality of required catheters pass through corresponding rotary cutting grooves 312 and pass through a plurality of fixed limiting plates 55, and after the catheters are placed at required rotary cutting positions, the driving device 4 operates to drive a driving disc 42 on the telescopic end of a driving hydraulic cylinder 41 to perform telescopic motion, so as to drive a plurality of driving blocks 43 on the driving disc 42 to perform telescopic motion, so as to drive a plurality of driving pieces 44 to perform telescopic motion, the plurality of driving pieces 44 perform telescopic motion to drive corresponding fixed limiting plates 55 to perform telescopic motion, so as to drive a plurality of fixed limiting pieces 54 to perform motion, and the plurality of telescopic rods 52 are in a matching state, so as to fix and limit the corresponding catheters through the plurality of fixed limiting pieces 54, so as to facilitate subsequent rotary cutting operation;
secondly, after the fixing and limiting of the plurality of catheters are completed, the rotary cutting motor 22 on the rotary cutting base 21 is operated, the rotary cutting motor 22 is operated to drive the rotary cutting shaft 23 on the output end of the rotary cutting motor 22 to rotate, the rotary cutting shaft 23 is rotated to drive the rotary cutting tool 24 to rotate, so that the rotary cutting operation is performed on the plurality of catheters, while the rotary cutting shaft 23 rotates, the transmission gear 32 on the transmission frame 31 is synchronously driven to rotate, the transmission gear 32 rotates to drive the fixed limiting column 51 in each fixed limiting device 5 to rotate, so that the corresponding fixed limiting catheter on each fixed limiting device 5 is driven to rotate, as the number of teeth on the transmission gear 32 is several times of the number of teeth on the fixed limiting column 51, when the rotary cutting shaft 23 rotates to drive the transmission gear 32 and the rotary cutting tool 24 to synchronously rotate, the rotary cutting tool 24 rotates for one circle, and the transmission gear 32 rotates for several circles, so that the corresponding catheter on each fixed limiting device 5 can be rotary cut after the rotary cutting tool 24 rotates for one circle, and the rotary cutting operation efficiency and the quality of the plurality of catheters are improved;
thirdly, the rotation directions of the transmission gear 32 and the rotary cutting tool 24 are the same, and each fixed limiting device 5 is driven to rotate by the transmission gear 32, so that the rotation directions of each fixed limiting device 5 and the rotary cutting tool 24 are opposite, and therefore, the rotation directions of the plurality of catheters and the rotary cutting tool 24 are the same, so that when the rotary cutting tool 24 performs rotary cutting on the plurality of catheters, the plurality of catheters can be rotationally cut more quickly by a reaction force, and the rotary cutting quality and efficiency are improved;
fourthly, because the rotary cutting length of the guide pipes is different in each time, when the plurality of guide pipes are subjected to rotary cutting operation, after the head ends of the plurality of guide pipes pass through the corresponding matching grooves 15, the required rotary cutting size can be obtained according to the size of the head ends of the guide pipes, and meanwhile, the rotary cutting matching frame 14 can also play a role in limiting the plurality of guide pipes;
fifthly, after the rotary cutting positions of the plurality of conduits are adjusted, the movable frame 13 on the screw rod sliding table 12 is driven to move towards the plurality of conduits through the operation of the screw rod sliding table 12, so that the air pump 11 and the cleaning frame 61 on the movable frame 13 are driven to move, the fixing frame 62 on the cleaning frame 61 is driven to move, the air outlets of the plurality of cleaning pipelines 63 respectively penetrate through the head ends of the corresponding conduits, at the moment, air is generated through the operation of the air pump 11, the air is discharged into the plurality of cleaning pipelines 63 through the air outlet end of the air pump 11, so that the air is discharged into the corresponding conduits through the air outlets of the plurality of cleaning pipelines 63, at the moment, when the rotary cutting tool 24 performs rotary cutting operation on the plurality of conduits, waste chips and burrs generated by rotary cutting can be blown out, a cleaning effect is achieved on the conduits after rotary cutting, and conduit blockage is avoided, and subsequent normal use is influenced.
Sixthly, after the plurality of guide pipes pass through the corresponding rotary-cut grooves 312 and the matching grooves 15, when the screw rod sliding table 12 drives the plurality of cleaning pipes 63 on the moving frame 13 to move, the head ends of the corresponding guide pipes can be accurately inserted into the plurality of cleaning pipes 63, because the guide pipes are made of soft materials, the guide pipes can be possibly deviated during rotary-cut operation of the rotary-cut cutter 24, and after the gas of the air pump 11 is discharged into the corresponding guide pipes through the plurality of cleaning pipes 63 by operation of the air pump 11, the strength of the guide pipes can be increased, so that deviation is generated during rotary-cut of the guide pipes, other factors such as non-perpendicularity of rotary-cut cannot be caused, and the quality of products is effectively improved.
Preferably, workstation 1 is the level setting, lead screw slip table 12 sets up on workstation 1, it sets up on the drive end of lead screw slip table 12 to remove frame 13, air pump 11 is fixed on removing frame 13, rotary-cut device 2 sets up on workstation 1 and is located the side of lead screw slip table 12, drive arrangement 4 sets up on rotary-cut device 2, transmission 3 sets up on rotary-cut device 2, fixed stop device 5 is equipped with a plurality of, a plurality of fixed stop device 5 evenly encircles the setting on transmission 3, cleaning device 6 sets up on removing frame 13 and is connected with the end of giving vent to anger of air pump 11, and this device carries out rotary-cut operation to the pipe through utilizing less equipment, and can be to the synchronous rotary-cut operation of a plurality of pipes, can play clear effect to the inside of pipe at pipe rotary-cut in-process to avoid the pipe to block up, influence subsequent normal use.
Preferably, the rotary cutting device 2 includes a rotary cutting base 21, a rotary cutting motor 22, a rotary cutting shaft 23 and a rotary cutting tool 24, the rotary cutting base 21 is disposed on the worktable 1, the rotary cutting motor 22 is disposed on the rotary cutting base 21, the rotary cutting shaft 23 is disposed at an output end of the rotary cutting motor 22, the rotary cutting tool 24 is disposed on the rotary cutting shaft 23, after the plurality of catheters are moved to the desired rotary cutting positions and are fixed by the corresponding fixing and limiting devices 5, at this time, the rotary cutting motor 22 on the rotary cutting base 21 operates to drive the rotary cutting shaft 23 on the output end of the rotary cutting motor 22 to rotate, and the rotary cutting shaft 23 rotates to drive the rotary cutting tool 24 to rotate, thereby performing rotary cutting operation on the plurality of catheters.
Preferably, the transmission device 3 includes a transmission frame 31 and a transmission gear 32, the transmission frame 31 is disposed on the working table 1 and located at a side end of the rotary cutting base 21, a through groove is disposed on the transmission frame 31, a plurality of rotary cutting grooves 312 are further disposed on the transmission frame 31, the transmission gear 32 is sleeved on the rotary cutting shaft 23 and is rotatably connected with the transmission frame 31, and the transmission device 3 can drive a plurality of fixing and limiting devices 5 to rotate, so that the plurality of guide pipes are driven to rotate to perform rotary cutting operation on the plurality of guide pipes.
Preferably, the driving device 4 includes a driving hydraulic cylinder 41, a driving disc 42, a driving block 43 and a driving member 44, a plurality of driving grooves 313 are arranged on the transmission frame 31, the driving hydraulic cylinder 41 is arranged on the rotary cutting base 21, the driving disc 42 is connected to the telescopic end of the driving hydraulic cylinder 41 and located at the side end of the transmission frame 31, the driving block 43 is provided with a plurality of driving parts and a plurality of one end of the driving block 43 is uniformly arranged at the outer side of the driving disc 42, the driving member 44 is provided with a plurality of driving parts, one end of each driving member 44 is connected to the corresponding driving block 43, and the other end of each driving part 44 penetrates through the corresponding driving groove 313, the lower end of the driving disc 42 is in sliding fit with the workbench 1, when each fixed limiting device 5 needs to operate, the driving disc 42 on the telescopic end of the driving hydraulic cylinder 41 is driven to extend and retract through the driving hydraulic cylinder 41, so as to drive the driving parts 43 on the driving disc 42, thereby driving the driving parts 44 to extend and retract, thereby driving the fixed limiting devices 5 to drive the fixed limiting devices 5, and to facilitate the subsequent rotary cutting operation of the guide tube.
Preferably, each fixed limiting device 5 includes a fixed limiting post 51, a telescopic rod 52, a fixed limiting block 53, a fixed limiting part 54 and a fixed limiting plate 55, the fixed limiting post 51 is disposed on the transmission rack 31 and rotatably connected with the transmission rack 31, the fixed limiting post 51 is provided with teeth engaged with the transmission gear 32, the number of the teeth on the transmission gear 32 is several times that on the fixed limiting post 51, the fixed limiting part 54 is provided with a plurality of teeth, one end of the fixed limiting part 54 uniformly surrounds the outer side of the fixed limiting post 51 and is rotatably connected, the fixed limiting plate 55 is disposed at the side end of the fixed limiting post 51, the fixed limiting block 53 is provided with a plurality of teeth, and a plurality of one end of the fixed limiting block 53 uniformly surrounds the eccentric center position of the fixed limiting part 54 corresponding to be rotatably connected, the other ends of the plurality of fixed limiting blocks 53 are uniformly connected to the outer sides of the fixed limiting plates 55 in a surrounding manner and are rotatably connected, the other ends of the plurality of driving members 44 are respectively connected to the corresponding fixed limiting plates 55 and are rotatably connected with the fixed limiting plates 55, when a plurality of catheters are subjected to synchronous rotary cutting operation, firstly, the plurality of required catheters pass through the corresponding rotary cutting grooves 312 and pass through the plurality of fixed limiting plates 55, and after the catheters are placed at the required rotary cutting positions, the driving device 4 operates to drive the driving disc 42 at the telescopic end of the driving hydraulic cylinder 41 to perform telescopic motion, so as to drive the plurality of driving blocks 43 on the driving disc 42 to perform telescopic motion, so as to drive the plurality of driving members 44 to perform telescopic motion, and the plurality of driving members 44 perform telescopic motion to drive the corresponding fixed limiting plates 55 to perform telescopic motion, so as to drive the plurality of fixed limiting members 54 to perform motion, the plurality of telescopic rods 52 are in a matching state, so that the corresponding catheter is fixedly limited by the plurality of fixed limiting pieces 54, and subsequent rotary cutting operation is facilitated; after the fixing and limiting of the plurality of catheters are completed, the rotary cutting motor 22 on the rotary cutting base 21 operates, the rotary cutting motor 22 operates to drive the rotary cutting shaft 23 on the output end of the rotary cutting motor 22 to rotate, the rotary cutting shaft 23 rotates to drive the rotary cutting tool 24 to rotate, so that the rotary cutting operation is performed on the plurality of catheters, while the rotary cutting shaft 23 rotates, the transmission gear 32 on the transmission frame 31 is synchronously driven to rotate, the transmission gear 32 rotates to drive the fixed limiting column 51 in each fixed limiting device 5 to rotate, so that the corresponding fixed limiting catheter on each fixed limiting device 5 is driven to rotate, as the number of teeth on the transmission gear 32 is several times of the number of teeth on the fixed limiting column 51, when the rotary cutting shaft 23 rotates to drive the transmission gear 32 and the rotary cutting tool 24 to synchronously rotate, the rotary cutting tool 24 rotates for one circle, so that the corresponding catheter on each fixed limiting device 5 can be rotary cut after the rotary cutting tool 24 rotates for one circle, and at the corresponding catheter on each fixed limiting device 5 is in a rotating state, thereby realizing the operation of the plurality of catheters, and improving the rotary cutting efficiency and the rotary cutting efficiency; the rotating directions of the transmission gear 32 and the rotary cutter 24 are the same, and each fixed limiting device 5 is driven to rotate by the transmission gear 32, so that the rotating directions of each fixed limiting device 5 and the rotary cutter 24 are opposite, and therefore, the rotating directions of the plurality of catheters and the rotary cutter 24 are the same, so that when the rotary cutter 24 rotates the plurality of catheters in a rotary manner, the plurality of catheters can be rotated in a rotary manner more quickly by the reaction force, and the rotary cutting quality and efficiency are improved.
Preferably, the rotary cutting device further comprises a rotary cutting matching frame 14, the rotary cutting matching frame 14 is arranged at the side end of the transmission frame 31, the rotary cutting matching frame 14 is provided with a plurality of matching grooves 15, the rotary cutting tool 24 is located between the rotary cutting matching frame 14 and the transmission frame 31, the rotary cutting tool 24 and the rotary cutting matching frame 14 are close to each other and close to a mutually-fitted state, and the rotary cutting length of the guide pipe is different for each time, so that when the rotary cutting operation is performed on a plurality of guide pipes, after the head ends of the guide pipes pass through the corresponding matching grooves 15, the required rotary cutting size can be obtained according to the size of the head ends of the guide pipes, and meanwhile, the rotary cutting matching frame 14 can also play a role in limiting the plurality of guide pipes.
Preferably, the cleaning device 6 comprises a cleaning frame 61, a fixing frame 62 and a cleaning pipeline 63, the cleaning frame 61 is arranged on the movable frame 13, the air outlet end of the air pump 11 passes through the cleaning frame 61 and is limited by the cleaning frame 61, the fixing frame 62 is connected to the movable frame 13 and is positioned at the side end of the rotary cutting matching frame 14, the fixing frame 62 is provided with a plurality of fixing grooves 621, the cleaning pipeline 63 is provided with a plurality of air inlets of the cleaning pipeline 63 which are connected to the air outlet end of the air pump 11, the air outlets of the cleaning pipeline 63 respectively pass through the corresponding fixing grooves 621, after the adjustment of the required rotary cutting positions of a plurality of catheters is completed, the movable frame 13 on the screw rod sliding table 12 is driven to move towards the plurality of catheters through the operation of the screw rod sliding table 12, thereby drive air pump 11 and the removal of clean frame 61 on the removal frame 13, thereby drive the mount 62 on the clean frame 61 and remove, make the gas outlet of a plurality of clean pipeline 63 pass the head end of corresponding pipe respectively, at this moment, produce gas through the operation of air pump 11, discharge into in a plurality of clean pipeline 63 through the end of giving vent to anger of air pump 11, thereby discharge into corresponding pipe through the gas outlet of a plurality of clean pipeline 63, at this moment when rotary-cut cutter 24 was to a plurality of pipe rotary-cut operation, the produced sweeps of rotary-cut and burr can be blown off, thereby play a clear effect to the pipe that the rotary-cut was accomplished, avoided the pipe jam, influence subsequent normal use.
Preferably, a plurality of rotary-cut grooves 312 on the transmission frame 31, a plurality of matching grooves 15 on the rotary-cut matching frame 14 and a plurality of fixing grooves 621 on the fixing frame 62 are respectively in one-to-one correspondence, after a plurality of conduits pass through the corresponding rotary-cut grooves 312 and the matching grooves 15, when the screw rod sliding table 12 drives a plurality of cleaning pipelines 63 on the moving frame 13 to move, the head ends of the corresponding conduits can be accurately inserted through the plurality of cleaning pipelines 63, because the conduits are made of soft materials, the conduits can possibly deviate during rotary-cut operation of the rotary-cut cutter 24, and after the gas of the air pump 11 is discharged into the corresponding conduits through the plurality of cleaning pipelines 63 by operation of the air pump 11, the strength of the conduits can be increased, thereby avoiding deviation during rotary-cut conduit, avoiding other factors such as non-perpendicularity of rotary-cut, and effectively improving the quality of products.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. A rotational cutting method of a medical catheter, the medical catheter including a medical catheter body (16), the medical catheter body (16) having a diameter of 0.5 mm to 10 mm, the medical catheter being divided into a single lumen or a multi-lumen, characterized in that: the preparation method comprises the following steps:
the device comprises a workbench (1), an air pump (11), a screw rod sliding table (12), a moving frame (13), a fixed limiting device (5), a driving device (4), a rotary cutting device (2), a transmission device (3) and a cleaning device (6), wherein when a plurality of catheters are subjected to synchronous rotary cutting operation, a plurality of required catheters pass through corresponding rotary cutting grooves (312) and pass through a plurality of fixed limiting plates (55), and after the catheters are placed at required rotary cutting positions, a driving disc (42) on the telescopic end of a driving hydraulic cylinder (41) is driven to perform telescopic motion through the operation of the driving device (4), so that a plurality of driving blocks (43) on the driving disc (42) are driven to perform telescopic motion, so that a plurality of driving pieces (44) are driven to perform telescopic motion, a plurality of driving pieces (44) perform telescopic motion to drive corresponding fixed limiting plates (55) to perform telescopic motion, a plurality of telescopic rods (52) are in a matching state, so that the corresponding catheters are fixed through a plurality of fixed limiting pieces (54) to facilitate subsequent rotary cutting operation;
secondly, after the fixing and limiting of the plurality of guide tubes are completed, a rotary cutting motor (22) on a rotary cutting seat (21) operates, the rotary cutting motor (22) operates to drive a rotary cutting shaft (23) on the output end of the rotary cutting motor (22) to rotate, the rotary cutting shaft (23) rotates to drive a rotary cutting tool (24) to rotate, so that the plurality of guide tubes are subjected to rotary cutting operation, the rotary cutting shaft (23) synchronously drives a transmission gear (32) on a transmission frame (31) to rotate, the transmission gear (32) rotates to drive a fixed limiting column (51) in each fixed limiting device (5) to rotate, so that the rotary cutting tool (24) rotates, the transmission gear (32) rotates by a plurality of times of the number of teeth on the fixed limiting column (51), when the rotary cutting shaft (23) rotates to drive the transmission gear (32) and the rotary cutting tool (24) to synchronously rotate, the rotary cutting tool (24) and the rotary cutting tool (24) can rotate by one circle, and the rotary cutting efficiency of each fixed limiting device (5) is improved, and the rotary cutting efficiency of each rotary cutting tool (5) is improved;
thirdly, the rotating directions of the transmission gear (32) and the rotary cutting tool (24) are the same, and each fixed limiting device (5) is driven to rotate by the transmission gear (32), so that the rotating directions of each fixed limiting device (5) and the rotary cutting tool (24) are opposite, and therefore, the rotating directions of the plurality of guide pipes and the rotary cutting tool (24) are the same, when the rotary cutting tool (24) rotatably cuts the plurality of guide pipes, the guide pipes can be rotatably cut more quickly by reacting force, and the rotary cutting quality and efficiency are improved;
fourthly, the rotary cutting length of the guide pipes is different from requirement of each time, so that when the plurality of guide pipes are subjected to rotary cutting operation, after the head ends of the plurality of guide pipes penetrate through the corresponding matching grooves (15), the required rotary cutting size can be obtained according to the size of the head ends of the guide pipes, and meanwhile, the rotary cutting matching frame (14) can also play a role in limiting the plurality of guide pipes;
fifthly, after the rotary cutting positions of the plurality of conduits are adjusted, the movable frame (13) on the screw rod sliding table (12) is driven to move towards the plurality of conduits through the operation of the screw rod sliding table (12), so that the air pump (11) and the cleaning frame (61) on the movable frame (13) are driven to move, the fixed frame (62) on the cleaning frame (61) is driven to move, the air outlets of the plurality of cleaning pipelines (63) respectively penetrate through the head ends of the corresponding conduits, gas is generated through the operation of the air pump (11), and is discharged into the plurality of cleaning pipelines (63) through the air outlet end of the air pump (11), so that the gas is discharged into the corresponding conduits through the air outlets of the plurality of cleaning pipelines (63), and waste chips and burrs generated by rotary cutting are blown out when the rotary cutting tool (24) performs rotary cutting operation on the plurality of conduits, so that a cleaning effect is achieved on the rotary cut conduits, and the blockage of the conduits is avoided, and the subsequent normal use is influenced;
sixthly, after a plurality of pipes penetrate through the corresponding rotary cutting grooves (312) and the matching grooves (15), when the plurality of cleaning pipelines (63) on the movable frame (13) are driven to move by the screw rod sliding table (12), the head ends of the corresponding pipes can be accurately inserted into the plurality of cleaning pipelines (63), the pipes can possibly cause pipe deviation in rotary cutting operation of the rotary cutting tool (24), and after the gas of the air pump (11) is discharged into the corresponding pipes through the plurality of cleaning pipelines (63) through operation of the air pump (11), the strength of the pipes can be increased, deviation is generated when the rotary cutting pipes are avoided, rotary cutting non-perpendicularity cannot be caused, and the quality of products is effectively improved.
2. The rotational atherectomy method of claim 1, wherein: workstation (1) is the level setting, lead screw slip table (12) set up on workstation (1), remove frame (13) and set up on the drive end of lead screw slip table (12), air pump (11) are fixed on removing frame (13), rotary-cut device (2) set up on workstation (1) and are located the side of lead screw slip table (12), drive arrangement (4) set up on rotary-cut device (2), transmission (3) set up on rotary-cut device (2), fixed stop device (5) are equipped with a plurality of, a plurality of fixed stop device (5) evenly encircle the setting on transmission (3), cleaning device (6) set up on removing frame (13) and are connected with the end of giving vent to anger of air pump (11).
3. The rotational atherectomy method of claim 1, wherein: the rotary cutting device (2) comprises a rotary cutting base (21), a rotary cutting motor (22), a rotary cutting shaft (23) and a rotary cutting tool (24), the rotary cutting base (21) is arranged on the workbench (1), the rotary cutting motor (22) is arranged on the rotary cutting base (21), the rotary cutting shaft (23) is arranged at the output end of the rotary cutting motor (22), and the rotary cutting tool (24) is arranged on the rotary cutting shaft (23).
4. The rotational atherectomy method of claim 3, wherein: the transmission device (3) comprises a transmission frame (31) and a transmission gear (32), the transmission frame (31) is arranged on the workbench (1) and is located at the side end of the rotary cutting base (21), a through groove is formed in the transmission frame (31), a plurality of rotary cutting grooves (312) are further formed in the transmission frame (31), and the transmission gear (32) is sleeved on the rotary cutting shaft (23) and is rotationally connected with the transmission frame (31).
5. The rotational atherectomy method of claim 4, wherein: drive arrangement (4) are including drive hydraulic cylinder (41), driver disc (42), drive block (43) and driving piece (44), be equipped with a plurality of drive slot (313) on transmission frame (31), drive hydraulic cylinder (41) set up on rotary-cut seat (21), driver disc (42) are connected and are served and be located the side of transmission frame (31) in the flexible of drive hydraulic cylinder (41), driver disc (42) lower extreme and workstation (1) are sliding fit, driver block (43) are equipped with a plurality of, a plurality of lay the outside at driver disc (42) evenly in the one end of driver block (43), driving piece (44) are equipped with a plurality of, a plurality of the one end of driving piece (44) is connected respectively on corresponding driver block (43), a plurality of the other end of driving piece (44) passes corresponding drive slot (313) respectively.
6. The rotational atherectomy method of claim 5, wherein: every fixed stop device (5) all includes fixed spacing post (51), telescopic link (52), fixed stopper (53), fixed locating part (54) and fixed limiting plate (55), fixed spacing post (51) set up on driving frame (31) and be connected for rotating with driving frame (31), be equipped with the tooth with drive gear (32) meshing on fixed spacing post (51), the quantity of tooth is a plurality of times of the quantity of tooth on fixed spacing post (51) on drive gear (32), fixed stopper (54) are equipped with a plurality of, a plurality of the one end of fixed locating part (54) evenly encircles the outside that sets up at fixed spacing post (51) and is the rotation connection, fixed limiting plate (55) set up the side at fixed spacing post (51), fixed stopper (53) are equipped with a plurality of, a plurality of the one end of fixed stopper (53) evenly encircles and connects and is connected a plurality of rotation connection at the eccentric position of fixed locating part (54) that corresponds, a plurality of the other end of fixed stopper (53) encircles evenly and is connected at the outside that fixed locating part (55) is the rotation driving piece, the other end of fixed stopper (44) corresponds and is connected respectively and is the limiting plate (55).
7. The rotational atherectomy method of claim 4, wherein: the rotary cutting device is characterized by further comprising a rotary cutting matching frame (14), the rotary cutting matching frame (14) is arranged at the side end of the transmission frame (31), a plurality of matching grooves (15) are formed in the rotary cutting matching frame (14), the rotary cutting tool (24) is located between the rotary cutting matching frame (14) and the transmission frame (31), and the rotary cutting tool (24) is close to the rotary cutting matching frame (14) in distance and close to a mutual attaching state.
8. The rotational atherectomy method of claim 7, wherein: cleaning device (6) are including cleaning frame (61), mount (62) and clean pipeline (63), cleaning frame (61) sets up on removing frame (13), the end of giving vent to anger of air pump (11) passes cleaning frame (61) and carries on spacingly through cleaning frame (61), mount (62) are connected on removing frame (13) and are located the side of rotary-cut mating frame (14), be equipped with a plurality of fixed slot (621) on mount (62), clean pipeline (63) are equipped with a plurality of, a plurality of the air inlet of clean pipeline (63) is all connected on the end of giving vent to anger of air pump (11), a plurality of the gas outlet of clean pipeline (63) passes corresponding fixed slot (621) respectively.
9. The rotational atherectomy method of claim 8, wherein: the rotary cutting device is characterized in that the rotary cutting grooves (312) on the transmission frame (31), the matching grooves (15) on the rotary cutting matching frame (14) and the fixing grooves (621) on the fixing frame (62) are respectively in one-to-one correspondence.
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| CN202210766995.7A CN115025366B (en) | 2022-07-01 | 2022-07-01 | Medical catheter and rotary cutting method thereof |
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| CN202210766995.7A CN115025366B (en) | 2022-07-01 | 2022-07-01 | Medical catheter and rotary cutting method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2010115747A (en) * | 2008-11-13 | 2010-05-27 | Omi Kogyo Co Ltd | Pipe cutter |
| EP3556307B1 (en) * | 2010-08-27 | 2021-12-01 | Ekos Corporation | Apparatus for treatment of intracranial hemorrhages |
| SE538305C2 (en) * | 2014-11-18 | 2016-05-03 | Medvasc Ab | Medical device for ablation treatment of defective blood vessels, body cavities, and body ducts |
| CN211214887U (en) * | 2019-08-02 | 2020-08-11 | 河南强森微创医疗器械有限公司 | Medical catheter |
| CN111376322A (en) * | 2020-03-26 | 2020-07-07 | 宁波韦科医疗科技有限公司 | Cutting mechanism for outer tube of balloon catheter |
| CN214081652U (en) * | 2020-10-30 | 2021-08-31 | 长光安智(长春)科技有限公司 | Round tube rotary cutting device |
| CN214924711U (en) * | 2021-02-05 | 2021-11-30 | 海南维力医疗科技开发有限公司 | Cutting device for processing catheter |
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