A thread-receiving device for a foramen ovale suture head

Abstract

The present invention provides a wire-winding device for a foramen ovale suture head, belonging to the technical field of wire-winding devices. Currently, manual wire-winding is inconvenient. Suture buckles are provided in both insertion channels, and the two suture buckles are connected by a connecting line. A pull line is connected to the middle of the connecting line. Two needle tubes are symmetrically arranged on both sides of the inner part of an outer tube. Push rods are provided in the inner parts of the two needle tubes. Both needle tubes are provided with insertion tips. The ends of the two needle tubes away from the insertion tips are connected to a first push rod for pushing the two needle tubes into the two insertion channels respectively. The two push rods are connected to a second push rod for driving the two push rods to extend from the two needle tubes respectively. After the needle tubes pass through the insertion channels, the suture buckles are located in the tube cavity of the needle tube. The wire-winding device includes a shell and a wire-winding wheel provided on the shell. The wire-winding wheel includes a fixed secondary wheel and a rotating secondary wheel. The rotating secondary wheel is provided with a power storage device for driving the rotating secondary wheel to rotate. The present invention has the advantages of convenient wire-winding.

Description

Technical Field

[0001] The invention belongs to the technical field of thread take-up devices, and in particular relates to a thread take-up device for a foramen ovale suture head. Background Art

[0002] The foramen ovale typically closes within the first year of life. If it remains open in children older than three years, it is called a patent foramen ovale. In adults, 20% to 25% of foramina ovale fail to close completely. Patent foramen ovale is currently the most common congenital heart anomaly in adults.

[0003] Currently, the most common surgery performed in hospitals is occlusion surgery, which involves placing two occluding umbrellas on either side of the foramen ovale using surgical instruments to seal the foramen ovale. However, this surgery also has disadvantages, namely, the occluding umbrellas are large in size and have a high chance of complications. The applicant has proposed a suture head for suturing the foramen ovale, but the thread is manually retracted, and the thread itself is relatively thin, making it difficult to operate. To address this situation, the applicant has proposed a device for assisting in thread retraction. Summary of the Invention

[0004] The purpose of the present invention is to provide a thread take-up device for a foramen ovale suture head in order to solve the above problems in the prior art.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A thread-taking device for an oval foramen suture head, characterized in that it includes a suture head and a thread-taking device, the suture head includes an outer tube, a rocker and two needle tubes, the first end of the outer tube is provided with a mounting frame, the rocker is rotatably set on the mounting frame, a driving rod is provided in the outer tube, the driving rod is used for a person to pull toward the end away from the rocker to rotate the rocker, two penetration channels are symmetrically provided at both ends of the rocker, suture buckles are provided in both penetration channels, the two suture buckles are connected by a connecting line, the middle of the connecting line is connected to a pull line, and the two needle tubes are symmetrically provided. Placed on both sides of the outer tube, push rods are provided inside the two needle tubes, and the two needle tubes are provided with insertion tips. The ends of the two needle tubes away from the insertion tips are connected with a first push rod for pushing the two needle tubes into the two penetration channels respectively, and the two push rods are connected with a second push rod for driving the two push rods to extend from the two needle tubes respectively. When the needle tube passes through the penetration channel, the suture buckle is located in the tube cavity of the needle tube, and the wire take-up device includes an outer shell and a wire take-up wheel provided on the outer shell, and the wire take-up wheel includes a fixed secondary wheel and a rotating secondary wheel, and a power storage device for driving the rotating secondary wheel to rotate is provided in the rotating secondary wheel.

[0006] The working principle of the present invention is as follows: the driving rod, the first push rod, the second push rod and the pull wire all have operating ends extending from the second end of the outer tube. When in use, the outer tube is inserted into the sheath through the patient's thigh to the atrium. During this time, the swing rod and the outer tube are located in the same straight line. Then, with the help of angiography, the position is positioned at the foramen ovale. The staff first pulls the driving rod to rotate and expand the swing rod, so that the two ends of the swing rod are respectively aligned with the septum on both sides of the foramen ovale. Then, the staff pushes the first push rod, and the two needle tubes are extended from the outer tube and pass through the piercing channel to puncture the septum on both sides of the foramen ovale respectively. The needle tube is pulled back into the outer tube through the first and second push rods, and the two suture buckles are located on the other side of the diaphragm. The wire drawing column is operated to reel in the pull line, and the two suture buckles can be pulled together to drive the diaphragms on both sides of the foramen ovale to close. The connection between the connecting line and the pull line will be pre-tied in advance. After pulling the two suture buckles together, the knot can be completed. Finally, the pull line can be cut. The manual wire drawing is replaced by setting the wire drawing column, which facilitates the surgical operation.

[0007] In the above-mentioned wire-taking device for the foramen ovale suture head, the mounting frame includes two mounting plates, and a rotating shaft is provided at one end of the two mounting plates away from the outer tube. Docking holes for docking the rotating shaft are provided on both sides of the middle part of the rocker arm, and the docking holes and the rotating shaft correspond one to one. Limit rods are provided on both side walls of the rocker arm, and limiters are provided on both rotating shafts. An annular groove for inserting the limit rod is provided on the side facing the rocker arm, and protrusions are provided on both side walls of the annular groove to form a limit opening.

[0008] The cam is provided with a plurality of movable channels, and the two movable channels are respectively used to accommodate the two needle tubes. Both sides of the driving rod are provided with a needle outlet opening connected to the accommodating channel, and both sides of the track block are provided with a needle outlet hole and the two sides of the track block are respectively clamped in the two needle outlet openings, and the two needle outlet holes are respectively connected to the two movable channels. The side walls of the outer tube are provided with an exposure groove, and the two exposure grooves are respectively used to expose the two needle outlet holes. The two needle tubes and the two push rods are made of shape memory alloy, and the two needle outlet holes are provided with a plurality of movable channels on the side close to the rocker arm. A guide arc surface is provided, the first push rod is located in the accommodating channel and is fixed to the end of the needle tube away from the insertion tip, the first push rod is penetrated by a mounting channel for accommodating the second push rod, and the second push rod is provided with two push columns at one end close to the needle tube, and the two push columns are fixedly connected to the two push rods respectively, and a wire outlet groove is provided on one side of the rocker arm, and the two ends of the wire outlet groove are respectively connected to the two penetration channels, and a through-hole connected to the wire outlet groove is provided on the other side of the rocker arm, and the through-hole is used for the pull wire to pass through, and the second push rod and the track block are penetrated by a wire pulling channel for the pull wire to pass through, and two docking blocks are provided on the side walls of the two penetration channels, and two docking grooves are provided on the outer walls of the two suture buckles, and the side walls of the two needle tubes are provided with a makeshift groove connected to the tube cavity of the needle tube, and a gap is left between the outer wall of the suture buckle and the side wall of the penetration channel for the tube wall of the needle tube to pass through.

[0009] In the above-mentioned wire-taking device for the foramen ovale suture head, the rotating secondary wheel is rotatably connected to the first rotating shaft, and the two ends of the first rotating shaft are respectively fixedly connected to the side walls of the mounting groove. A accommodating cavity is provided inside the rotating secondary wheel, and a ring-shaped wire-taking cavity is provided around the accommodating cavity inside the rotating secondary wheel. A mounting shaft is provided in the accommodating cavity, and the force storage device is provided as a spring, and the inner end of the spring is fixed on the mounting shaft. The accommodating cavity and the wire-taking cavity are connected by an exposed channel, and the outer end of the spring is located in the exposed channel and is connected to the pull wire. The rotating secondary wheel is provided with a wire entry port connected to the wire-taking cavity.

[0010] In the above-mentioned take-up device for the foramen ovale suture head, circular anti-reverse grooves are provided on both sides of the rotating secondary wheel, and the peripheral wall of the anti-reverse groove is evenly distributed with multiple oblique grooves along the circumference direction. The fixed secondary wheels are provided with two and are respectively located in the two anti-reverse grooves. The two fixed secondary wheels are fixedly connected to the first rotating shaft, and the outer peripheral walls of the two fixed secondary wheels are evenly distributed with multiple ratchets along the circumference direction. The multiple ratchets and the multiple oblique grooves cooperate to enable the rotating secondary wheel to rotate only in one direction.

[0011] In the above-mentioned wire-taking device for the foramen ovale suture head, a toggle wheel is provided on both sides of the rotating secondary wheel, and a connecting column is provided on the opposite side of the two toggle wheels. The two connecting columns are respectively connected to the two sides of the rotating secondary wheel and do not interfere with the fixed secondary wheel. A wire-taking wheel is provided at the end of the outer shell away from the wire-taking wheel, and the wire-taking wheel is fixedly connected to a second rotating shaft. The two ends of the second rotating shaft are respectively rotatably connected to the side walls of the mounting groove. The two connecting columns are connected to the second rotating shaft through belts, and the two belts are respectively located on both sides of the wire-taking wheel.

[0012] In the above-mentioned thread-taking device for the foramen ovale suture head, a plurality of friction blocks are provided on the peripheral walls of the two driving wheels.

[0013] The cam is fixedly mounted on the sidewall of the fixing groove and the fixing shaft is fixedly mounted on the fixing groove, wherein the fixing shaft is fixedly mounted on the sidewall of the fixing groove and the fixing shaft is fixedly mounted on the fixing groove.

[0014] The cam is fixedly provided with a ratchet on the mounting post, and a side of the rotating secondary wheel facing the fixed secondary wheel is provided with a setting channel for accommodating the ratchet and the mounting post, and a through-hole is provided on the circumferential wall of the rotating secondary wheel, and the rotating secondary wheel is further provided with a slot, and a spring is provided in the slot, and the spring is provided with a curved sheet body, and the curved sheet body extends out of the slot, and the winding hook is connected to the rotating secondary wheel through a support frame, and the support frame includes two support plates respectively located on both sides of the slot, a pin is provided between the two support plates, and the pin is connected to a pawl, and the pawl includes a connecting pawl body rotatably connected to the pin shaft and an abutting pawl body for extending from the through-hole into the setting channel to abut against the ratchet wheel,

[0015] In the above-mentioned thread-taking device for the foramen ovale suture head, a plurality of insertion grooves are evenly distributed on the connecting claw body around the first through-hole, and a plurality of insertion pieces are evenly distributed on the curved piece body around the second through-hole, and the insertion pieces and the insertion grooves correspond one to one.

[0016] Compared with the prior art, the present invention has the advantage of convenient line winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the suture head in the present invention.

[0019] Figure 3 It is a structural schematic diagram of the swing arm in the expanded state in the present invention.

[0020] Figure 4 It is a structural schematic diagram of the present invention.

[0021] Figure 5 It is a structural schematic diagram of the hidden outer tube in the present invention.

[0022] Figure 6 It is a schematic diagram of the structure of the hidden outer tube and the driving rod in the present invention.

[0023] Figure 7 It is a structural schematic diagram of the hidden outer tube, the driving rod, the first push rod and one of the limiters in the present invention.

[0024] Figure 8 It is an enlarged structural diagram of part A in the present invention.

[0025] Figure 9 It is a structural schematic diagram of the swing arm in the expanded state in the present invention.

[0026] Figure 10 It is a structural schematic diagram of the limiter in the present invention.

[0027] Figure 11 It is a schematic diagram of the state of the present invention when it is located at the foramen ovale and ready to work.

[0028] Figure 12 It is a structural schematic diagram of the first embodiment of the take-up wheel and the string-mounting wheel in the present invention.

[0029] Figure 13 It is a structural schematic diagram of the first embodiment of the take-up wheel in the present invention.

[0030] Figure 14 It is a structural schematic diagram of the first embodiment of the take-up wheel in the present invention.

[0031] Figure 15 It is a schematic cross-sectional view of the first embodiment of the take-up wheel in the present invention.

[0032] Figure 16 It is a structural schematic diagram of the second embodiment of the take-up wheel in the present invention.

[0033] Figure 17 It is a structural schematic diagram of the second embodiment of the take-up wheel in the present invention.

[0034] Figure 18 It is a structural schematic diagram of the fixed secondary wheel and the pawl in the second embodiment of the take-up wheel of the present invention.

[0035] Figure 19 It is a schematic cross-sectional view of a second embodiment of the take-up wheel of the present invention.

[0036] Figure 20 It is a schematic cross-sectional structure diagram of the second embodiment of the take-up wheel in the present invention from another perspective.

[0037] In the figure, 01, wire take-up device; 02, housing; 03, wire take-up wheel; 04, fixed secondary wheel; 05, rotating secondary wheel; 06, power storage device; 07, suture head; 08, mounting slot; 1, outer tube; 2, rocker arm; 3, needle tube; 4, mounting frame; 5, drive rod; 6, threading channel; 7, suture buckle; 8, connecting line; 9, push rod; 10, insertion tip; 11, first push rod; 12, second push rod; 13, mounting plate; 14, rotating shaft ; 15. Docking hole; 16. Limit rod; 17. Annular groove; 18. Limit opening; 19. Rotating block; 20. Rotating groove; 21. Accommodating channel; 22. Track block; 23. Movable channel; 24. Needle outlet opening; 25. Exposure groove; 26. Guide arc surface; 27. Push column; 28. Installation channel; 29. Wire outlet groove; 30. Perforation; 31. Wire pulling channel; 32. Docking block; 33. Docking groove; 34. Give way groove; 35. Limiter; 36, needle hole; 37, pull line; 38, first rotating shaft; 39, accommodating chamber; 40, take-up chamber; 41, mounting shaft; 42, exposure channel; 43, line inlet; 44, anti-reverse groove; 45, inclined groove; 46, ratchet; 47, toggle wheel; 48, connecting column; 49, wire pulley; 50, second rotating shaft; 51, belt; 52, friction block; 53, docking column; 54, mounting column; 55, fixed shaft; 56, slot ; 57. Connecting channel; 58. Cavity; 59. Connecting port; 60. Winding hook; 61. Winding groove; 62. Ratchet; 63. Setting channel; 64. Through port; 65. Slot; 66. Spring; 67. Bending sheet; 68. Support frame; 69. Support plate; 70. Pin; 71. Ratchet; 72. Connecting pawl; 73. Abutting pawl; 74. First through port; 75. Second through port; 76. Insertion slot; 77. Insertion sheet. DETAILED DESCRIPTION

[0038] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0039] like Figures 1-11As shown, the take-up device for the oval foramen suture head includes a suture head 07 and a take-up device 01. The suture head 07 includes an outer tube 1, a rocker 2 and two needle tubes 3. The first end of the outer tube 1 is provided with a mounting frame 4, and the rocker 2 is rotatably set on the mounting frame 4. A driving rod 5 is provided in the outer tube 1. The driving rod 5 is used for a person to pull toward the end away from the rocker 2 to rotate the rocker 2. Two penetration channels 6 are symmetrically provided at both ends of the rocker 2. Suture buckles 7 are provided in both penetration channels 6. The two suture buckles 7 are connected by a connecting line 8. The middle part of the connecting line 8 is connected to a pull line 37. The two needle tubes 3 are symmetrically arranged on both sides of the inner part of the outer tube 1. Both are provided with a push rod 9, and both needle tubes 3 are provided with an insertion tip 10. The ends of the two needle tubes 3 away from the insertion tip 10 are connected with a first push rod 11 for pushing the two needle tubes 3 into the two penetration channels 6 respectively. The two push rods 9 are connected with a second push rod 12 for driving the two push rods 9 to extend from the two needle tubes 3 respectively. After the needle tube 3 passes through the penetration channel 6, the suture buckle 7 is located in the tube cavity of the needle tube 3. The wire take-up device 01 includes a shell 02 and a wire take-up wheel 03 arranged on the shell 02. The wire take-up wheel 03 includes a fixed sub-wheel 04 and a rotating sub-wheel 05. The rotating sub-wheel 05 is provided with a power storage device 06 for driving the rotating sub-wheel 05 to rotate.

[0040] To elaborate further, the mounting frame 4 includes two mounting plates 13, and the ends of the two mounting plates 13 away from the outer tube 1 are both provided with a rotating shaft 14, and the middle of the rocker 2 is provided with docking holes 15 for docking the rotating shaft 14 on both sides. The docking holes 15 and the rotating shaft 14 correspond one to one. A limit rod 16 is provided on the side walls of both sides of the rocker 2, and a limiter 35 is provided on both rotating shafts 14. The two limiters 35 are provided with an annular groove 17 for inserting the limit rod 16 on the side facing the rocker 2. The side walls of the annular groove 17 are both provided with protrusions to form a limit opening 18. The driving rod 5 is provided with a rotating block 19 on the end close to the rocker 2. The rocker arm 2 is provided with a rotating groove 20 for accommodating the rotating block 19 near the through hole 30, and the driving rod 5 is provided with a setting channel 63 from the end away from the rotating block 19. A track block 22 is provided in the setting channel 63 near the rotating block 19. The track block 22 is provided with two movable channels 23 running through it. The two movable channels 23 are respectively used to accommodate two needle tubes 3. Both sides of the driving rod 5 are provided with needle outlet openings 24 connected to the setting channel 63. Both sides of the track block 22 are provided with needle outlet holes 36 and both sides of the track block 22 are respectively clamped in the two needle outlet openings 24. The two needle outlet holes 36 are respectively connected to the two movable channels 23. The side walls of the tube 1 are provided with an exposure groove 25, and the two exposure grooves 25 are respectively used to expose the two needle holes 36. The two needle tubes 3 and the two push rods 9 are made of shape memory alloy. The two needle holes 36 are provided with a guide arc surface 26 on the side close to the rocker 2. The first push rod 11 is located in the setting channel 63 and is fixed to the end of the needle tube 3 away from the insertion tip 10. The first push rod 11 is provided with a mounting channel 28 for accommodating the second push rod 12. The second push rod 12 is provided with two push columns 27 on the end close to the needle tube 3. The two push columns 27 are fixedly connected to the two push rods 9 respectively. An outlet line is provided on one side of the rocker 2. Groove 29, the two ends of the wire outlet groove 29 are respectively connected to the two penetration channels 6, and a through hole 30 connected to the wire outlet groove 29 is opened on the other side of the rocker 2. The through hole 30 is used for the pull wire 37 to pass through. The second push rod 12 and the track block 22 are both penetrated by a wire pulling channel 31 for the pull wire 37 to pass through. Two docking blocks 32 are provided on the side walls of the two penetration channels 6. Two docking grooves 33 are provided on the outer side walls of the two suture buckles 7. A clearance groove 34 communicating with the tube cavity of the needle tube 3 is opened on the side walls of the two needle tubes 3. A gap is left between the outer wall of the suture buckle 7 and the side wall of the penetration channel 6 for the tube wall of the needle tube 3 to pass through.

[0041] When the pendulum rod 2 reaches the oval foramen 20, the driving rod 5 is first used to rotate and unfold the pendulum rod 2. After unfolding, the outer tube 1 is operated to perform fine adjustment so that the two ends of the pendulum rod 2 can respectively fit on the diaphragms on both sides of the oval foramen 2. During this period, the pendulum rod 2 rotates due to fine adjustment, so a limit opening 18 is designed. The limit rod 16 moves in the annular groove 17 as the pendulum rod 2 rotates. When it moves to the limit opening 18, it cannot move anymore. In this way, a limit is formed on the rotation angle of the pendulum rod 2. This angle is that the pendulum rod 2 is perpendicular to the outer tube 1. This design limits the rotation of the pendulum rod 2 and facilitates the fine adjustment operation.

[0042] During the process of the outer tube 1 entering the human body, the rotating block 19 is located in the rotating groove 20 to keep the pendulum rod 2 and the outer tube 1 in the same straight line, ensuring that they can enter the human body smoothly. As shown in the accompanying drawings, the rotating block 19 and the rotating groove 20 are both arc-shaped. When it is necessary to rotate to unfold the pendulum rod 2, the staff pulls the driving rod 5, and the rotating block 19 will gradually leave the rotating groove 20. Due to the arc-shaped surfaces of the rotating block 19 and the rotating groove 20, the pendulum rod 2 will be driven to rotate during the process of the rotating block 19 leaving, and finally the pendulum rod 2 will be perpendicular to the outer tube 1. When the driving rod 5 is pulled back to unfold the pendulum rod 2, the driving rod 5 will remain retracted to ensure that it does not interfere with the pendulum rod 2. The function of the exposing groove 25 is to ensure that the pinhole 36 can be exposed without being blocked by the outer tube 1, so that it can be opened even if the driving rod 5 is retracted. The needle hole 36 is exposed so that the needle tube 3 can be extended normally; the shape memory alloy is made of nickel-titanium alloy, and the two needle tubes 3 are bent outward. The two penetration channels 6 are tilted to form an inverted "eight" shape. When the needle is removed, the first push rod 11 is pushed, and the needle tube 3 is smoothly extended from the needle hole 36 under the action of the guide arc surface 26 and its own recovery deformation. The original shape of the two needle tubes 3 can ensure that they are subsequently accurately inserted into the penetration channel 6. After passing through the penetration channel 6, the two needle tubes 3 are respectively inserted into the septum on both sides of the oval foramen A20 and finally pass through the septum. In this way, two channels are opened, and then the second push rod 12 is pushed to let the two push rods 9 push the two suture buckles 7 along the needle tube 3 to the other side of the septum, and finally the needle tube 3 and the push rod 9 are retracted;

[0043] Before the operation, the pull wire 37 is passed through the threading channel of the second push rod 12 and the track block 22 in sequence and then inserted into the perforation 30 so that the pull wire 37 is docked with the connecting wire 8. When suturing, the pull wire 37 is pulled from the outside and then cut. The docking block 32 and the docking groove 33 correspond one to one. When installing the suture buckle 7, the two docking grooves 33 on the suture buckle 7 are aligned with the docking block 32 and inserted. The operation is simple, and the direction of the docking groove 33 is the same as the direction of the threading channel 6, which fixes the suture buckle 7 without interfering with the push rod 9 to push out the suture buckle 7.

[0044] Since the docking block 32 is provided, a clearance groove 34 is designed. The position of the clearance groove 34 corresponds to the docking block 32 to ensure that the tube wall of the needle tube 3 does not interfere with the docking block 32, allowing the needle tube 3 to pass through the penetration channel 6 smoothly.

[0045] The pulling wire 37 is arranged in this way so that it can pass through the track block 22 and the wire pulling channel 31 of the second push rod 12 in sequence and finally pass through the pulling hole A13, which is convenient for the staff to operate the pulling wire 37.

[0046] The take-up wheel in this solution has the following two implementation modes:

[0047] Example 1: Figure 11-Figure 15 As shown, the rotating sub-wheel 05 is rotatably connected to the third rotating shaft 38, and the two ends of the third rotating shaft 38 are respectively fixedly connected to the side walls of the mounting groove 08. An accommodating chamber 39 is opened inside the rotating sub-wheel 05, and an annular wire-receiving chamber 40 is arranged around the accommodating chamber 39 inside the rotating sub-wheel 05. A mounting shaft 41 is arranged in the accommodating chamber 39, and the force storage device 06 is set as a spring. The inner end of the spring is fixed on the mounting shaft 41, and the accommodating chamber 39 and the wire-receiving chamber 40 are connected by an exposed channel 42. The outer end of the spring is located in the exposed channel 42 and is connected to the pull wire 37. The rotating sub-wheel 05 is provided with a wire inlet 43 connected to the wire-receiving chamber 40.

[0048] Before use, the mainspring will store energy so that the mainspring and the rotating secondary wheel 05 are in a balanced state. At this time, the mainspring will not be restored and will not drive the rotating secondary wheel 05 to rotate. When in use, the pull wire 37 is pulled to store energy for the mainspring again, so that the balance is broken, the mainspring is restored and drives the rotating secondary wheel 05 to rotate, thus completing the winding work.

[0049] In further detail, circular anti-reverse grooves 44 are formed on both sides of the rotating secondary wheel 05. The peripheral walls of the anti-reverse grooves 44 are uniformly distributed with multiple oblique grooves 45 along the circumference direction. Two fixed secondary wheels 04 are provided, and are respectively located in the two anti-reverse grooves 44. The two fixed secondary wheels 04 are fixedly connected to the third rotating shaft 38. The outer peripheral walls of the two fixed secondary wheels 04 are uniformly distributed with multiple ratchet teeth 46 along the circumference direction. The multiple ratchet teeth 46 and the multiple oblique grooves 45 cooperate to enable the rotating secondary wheel 05 to rotate in only one direction.

[0050] There is a gap between the ratchet 46 and the bevel groove 45, which allows the rotating secondary wheel 05 to rotate unidirectionally clockwise. However, because the design of the ratchet 46 and the bevel groove 45 cannot rotate counterclockwise, it can prevent reversal when reeling in the line.

[0051] To elaborate further, a toggle wheel 47 is provided on both sides of the rotating secondary wheel 05, and a connecting column 48 is provided on the opposite side of the two toggle wheels 47. The two connecting columns 48 are respectively connected to the two sides of the rotating secondary wheel 05 and do not interfere with the fixed secondary wheel 04. A wire-hanging wheel 49 is provided at one end of the housing 02 away from the take-up wheel 03. The wire-hanging wheel 49 is fixedly connected to a fourth rotating shaft 50. The two ends of the fourth rotating shaft 50 are respectively rotatably connected to the side walls of the mounting groove 08. The two connecting columns 48 are connected to the fourth rotating shaft 50 through a belt 51. The two belts 51 are respectively located on both sides of the wire-hanging wheel 49.

[0052] The connecting column 48 is connected around the anti-reverse groove 44 and is hollow in design, so it will not interfere with the anti-reverse groove 44 and the fixed sub-wheel 04. A wire drawing wheel 49 is designed, and the pull wire 37 will first pass through the wire drawing wheel 49 and then be connected to the outer end of the spring. It can limit the pull wire 37 and ensure normal winding. In addition to the automatic winding function, a toggle wheel 47 is also designed, which can be used for manual winding. When winding, just turn the toggle wheel 47 by hand. After the automatic winding is completed, the manual winding function can be used when fine-tuning is required.

[0053] To elaborate further, a plurality of friction blocks 52 are provided on the peripheral walls of the two shifting wheels 47;

[0054] The design of the friction block 52 can increase the friction force and facilitate the shifting.

[0055] Example 2: Figures 16-20 As shown, one side of the fixed sub-wheel 04 is fixedly connected to one side wall of the mounting groove 08 through a docking column 53, and a mounting column 54 is provided on the other side of the fixed sub-wheel 04. A fixed shaft 55 is fixedly provided on the other side wall of the mounting groove 08, and the mounting column 54 is provided with a slot 56 for inserting the fixed shaft 55. A connecting channel 57 for the fixed shaft 55 to pass through is provided through the rotating sub-wheel 05, and a cavity 58 communicating with the connecting channel 57 is provided inside the rotating sub-wheel 05. The force storage device 06 is provided as a spring, and the inner end of the spring is fixedly connected to the fixed shaft 55. A connecting port 59 communicating with the cavity 58 is provided on the outer wall of the rotating sub-wheel 05, and the outer end of the spring is fixed in the connecting port 59. A winding hook 60 for winding the pull wire 37 is provided on the outer wall of the rotating sub-wheel 05, and a winding groove 61 is provided on one side of the winding hook 60 of the rotating sub-wheel 05.

[0056] Compared with the internal storage type winding method in Example 1, the present embodiment is an external winding type, which is more convenient for subsequent operations such as wire cutting. Similarly, the mainspring will store energy before use and will be in a balanced state and will not rotate. When in use, the pull wire 37 is wound on the winding hook 60 and the main body of the pull wire 37 is directed toward the winding groove 61. The pull wire 37 is pulled to continue to store energy for the mainspring, thereby triggering the mainspring. The mainspring then drives the rotating secondary wheel 05 to rotate and wind the pull wire 37 into the winding groove 61 to complete the winding.

[0057] To be more specific, a ratchet 62 is fixedly mounted on the mounting post 54, and a channel 63 for accommodating the ratchet 62 and the mounting post 54 is provided on the side of the rotating secondary wheel 05 facing the fixed secondary wheel 04. A through opening 64 communicating with the channel 63 is provided on the peripheral wall of the rotating secondary wheel 05. A slot 65 is also provided on the rotating secondary wheel 05, and a spring 66 is provided in the slot 65. The spring 66 is provided with a bent sheet 67, which extends from the slot 65. The winding hook 60 is connected to the rotating secondary wheel 05 through a support frame 68. The support frame 68 includes two support plates 69 located on both sides of the slot 65, with a pin 70 provided between the two support plates 69. The pin 70 is connected to a pawl 71. The pawl 71 includes a connecting claw body 72 rotatably connected to the pin 70 and a contact claw body 73 for extending from the through opening 64 into the channel 63 to contact the ratchet 62. The connecting claw body 72 has a first through-hole 74 for the pin 70 to pass through. The bent sheet 67 has a second through-hole 75 for the pin 70 to pass through and is fixedly connected to the connecting claw body 72.

[0058] As shown in the figure, the principle of the ratchet 62 and the pawl 71 is utilized to enable the rotating secondary wheel 05 to rotate only in a counterclockwise direction. When the ratchet 62 rotates counterclockwise, each time it passes a ratchet tooth 46 on the ratchet 62, the pawl 71 will be lifted and then fall under the elastic action of the spring 66.

[0059] To be more specific, the connecting claw body 72 has a plurality of insertion grooves 76 evenly distributed around the first through-hole 74, and the curved sheet body 67 has a plurality of insertion pieces 77 evenly distributed around the second through-hole 75, with the insertion pieces 77 corresponding to the insertion grooves 76 one by one.

[0060] Each insertion piece 77 is formed by bending the curved sheet body 67, which can save raw materials. In addition, this design ensures that the force applied to each insertion piece 77 is uniform.

[0061] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

[0062] Although a large number of terms are used in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A thread take-up device for a foramen ovale suture head, characterized in that: The invention comprises a suturing head (07) and a thread take-up device (01), wherein the suturing head (07) comprises an outer tube (1), a swing rod (2) and two needle tubes (3), a mounting frame (4) is provided at the first end of the outer tube (1), the mounting frame (4) comprises two mounting plates (13), a rotating shaft (14) is provided at one end of the two mounting plates (13) away from the outer tube (1), docking holes (15) for docking with the rotating shaft (14) are provided on both sides of the middle part of the swing rod (2), and the docking holes (15) and the rotating shaft (14) correspond one to one, and a driving rod (5) is provided inside the outer tube (1). The driving rod (5) is used for a person to pull the end away from the pendulum rod (2) to rotate the pendulum rod (2). The driving rod (5) is provided with a rotating block (19) at one end close to the pendulum rod (2). The pendulum rod (2) is provided with a through hole (30) on one side close to the driving rod (5). The through hole (30) is used for a pull wire (37) to pass through. The pendulum rod (2) is provided with a rotating groove (20) close to the through hole (30) for accommodating the rotating block (19). Two through-holes (6) are symmetrically provided at both ends of the pendulum rod (2). A suture buckle (7) is provided, and two suture buckles (7) are connected by a connecting line (8), and a pull line (37) is connected to the middle of the connecting line (8). Two needle tubes (3) are symmetrically arranged on both sides of the inner part of the outer tube (1), and a push rod (9) is provided inside the two needle tubes (3). Both of the two needle tubes (3) are provided with an insertion tip (10), and one end of the two needle tubes (3) away from the insertion tip (10) is connected to a first push rod (11) for pushing the two needle tubes (3) into the two penetration channels (6) respectively. The two push rods (9) are connected to a push rod (11) for driving the two needle tubes (3) to move. The push rod (9) is a second push rod (12) extending from the two needle tubes (3). When the needle tube (3) passes through the penetration channel (6), the suture button (7) is located in the tube cavity of the needle tube (3). The wire take-up device (01) includes a shell (02) and a wire take-up wheel (03) arranged on the shell (02). The wire take-up wheel (03) includes a fixed secondary wheel (04) and a rotating secondary wheel (05). The rotating secondary wheel (05) is provided with a power storage device (06) for driving the rotating secondary wheel (05) to rotate. The other end of the pull line (37) is connected to the power storage device (06).

2. A thread take-up device for a foramen ovale suture head according to claim 1, characterized in that: Limiting rods (16) are provided on both side walls of the swing rod (2), and limiters (35) are provided on both rotating shafts (14). An annular groove (17) for inserting the limiting rod (16) is provided on the side of the two limiters (35) facing the swing rod (2), and protrusions are provided on both side walls of the annular groove (17) to form a limiting opening (18).

3. The thread take-up device for the foramen ovale suture head according to claim 1, characterized in that: The driving rod (5) is provided with an accommodating channel (21) at one end away from the rotating block (19), a track block (22) is provided in the accommodating channel (21) near the rotating block (19), and two movable channels (23) are provided through the track block (22), and the two movable channels (23) are respectively used to accommodate the two needle tubes (3), and needle outlet openings (24) communicating with the accommodating channel (21) are provided on both sides of the driving rod (5), and needle outlet holes (36) are provided on both sides of the track block (22). The two sides are respectively clamped in the two needle outlet openings (24), the two needle outlet holes (36) are respectively connected to the two movable channels (23), and the side walls of the outer tube (1) are provided with exposure grooves (25), and the two exposure grooves (25) are respectively used to expose the two needle outlet holes (36). The two needle tubes (3) and the two push rods (9) are made of shape memory alloy. The two needle outlet holes (36) are provided with a guide arc surface (26) on the side close to the rocker (2). The first push rod (11) is located in the accommodating channel ( 21) and fixed to the end of the needle tube (3) away from the insertion tip (10), the first push rod (11) is provided with a mounting channel (28) for accommodating the second push rod (12), the second push rod (12) is provided with two push columns (27) at the end close to the needle tube (3), the two push columns (27) are respectively fixedly connected to the two push rods (9), the side of the rocker arm (2) away from the driving rod (5) is provided with a wire outlet groove (29) connected to the through hole (30), and the two ends of the wire outlet groove (29) are respectively connected to the two through-channels (6) The second push rod (12) and the track block (22) are both provided with a pulling channel (31) for the pulling wire (37) to pass through, two docking blocks (32) are provided on the side walls of the two passing channels (6), two docking grooves (33) are provided on the outer side walls of the two suture buckles (7), and a clearance groove (34) connected to the tube cavity of the needle tube (3) is provided on the side walls of the two needle tubes (3), and a gap is left between the outer side wall of the suture buckle (7) and the side wall of the passing channel (6) for the tube wall of the needle tube (3) to pass through.

4. The thread take-up device for the foramen ovale suture head according to claim 1, characterized in that: The rotating secondary wheel (05) is rotatably connected to a first rotating shaft (38), and the two ends of the first rotating shaft (38) are respectively fixedly connected to the side walls of the mounting groove (08). A accommodating chamber (39) is provided inside the rotating secondary wheel (05), and an annular wire-receiving chamber (40) is provided inside the rotating secondary wheel (05) surrounding the accommodating chamber (39). A mounting shaft (41) is provided in the accommodating chamber (39). The power storage device (06) is configured as a spring, and the inner end of the spring is fixed on the mounting shaft (41). The accommodating chamber (39) and the wire-receiving chamber (40) are connected through an exposed channel (42). The outer end of the spring is located in the exposed channel (42) and is connected to the pull wire (37). A wire inlet (43) communicating with the wire-receiving chamber (40) is provided on the rotating secondary wheel (05).

5. The thread take-up device for the foramen ovale suture head according to claim 4, characterized in that: Circular anti-reverse grooves (44) are provided on both sides of the rotating secondary wheel (05), and a plurality of oblique grooves (45) are evenly distributed on the peripheral wall of the anti-reverse groove (44) along the circumference direction. Two fixed secondary wheels (04) are provided and are respectively located in the two anti-reverse grooves (44). The two fixed secondary wheels (04) are fixedly connected to the first rotating shaft (38), and a plurality of ratchet teeth (46) are evenly distributed on the outer peripheral wall of the two fixed secondary wheels (04) along the circumference direction. The plurality of ratchet teeth (46) and the plurality of oblique grooves (45) cooperate to enable the rotating secondary wheel (05) to rotate in only one direction.

6. The thread take-up device for the foramen ovale suture head according to claim 5, characterized in that: Both sides of the rotating secondary wheel (05) are provided with a toggle wheel (47), and the opposite sides of the two toggle wheels (47) are provided with a connecting column (48). The two connecting columns (48) are respectively connected to the two sides of the rotating secondary wheel (05) and do not interfere with the fixed secondary wheel (04). The end of the housing (02) away from the take-up wheel (03) is provided with a line-mounting wheel (49), and the line-mounting wheel (49) is fixedly connected to a second rotating shaft (50) (14). The two ends of the second rotating shaft (50) (14) are respectively rotatably connected to the side walls of the mounting groove (08). The two connecting columns (48) are connected to the second rotating shaft (50) (14) through a belt (51), and the two belts (51) are respectively located on both sides of the line-mounting wheel (49).

7. The thread take-up device for the foramen ovale suture head according to claim 6, characterized in that: A plurality of friction blocks (52) are provided on the peripheral walls of the two shifting wheels (47).

8. The thread take-up device for the foramen ovale suture head according to claim 1, characterized in that: One side of the fixed secondary wheel (04) is fixedly connected to one side wall of the mounting groove (08) through a docking column (53); the other side of the fixed secondary wheel (04) is provided with a mounting column (54); the other side wall of the mounting groove (08) is fixedly provided with a fixed shaft (55); the mounting column (54) is provided with a slot (56) for inserting the fixed shaft (55); the rotating secondary wheel (05) is provided with a connecting channel (57) for the fixed shaft (55) to pass through; ... The connecting channel (57) is connected to a cavity (58), the power storage device (06) is configured as a spring, the inner end of the spring is fixedly connected to a fixed shaft (55), a connecting port (59) communicating with the cavity (58) is provided on the outer wall of the rotating secondary wheel (05), the outer end of the spring is fixed in the connecting port (59), a winding hook (60) for winding a pull wire (37) is provided on the outer wall of the rotating secondary wheel (05), and the rotating secondary wheel (05) is provided with a winding groove (61) on one side of the winding hook (60).

9. The thread-taking device for the foramen ovale suture head according to claim 8, characterized in that: A ratchet (62) is fixedly provided on the mounting column (54); a setting channel (63) for accommodating the ratchet (62) and the mounting column (54) is provided on the side of the rotating secondary wheel (05) facing the fixed secondary wheel (04); a through opening (64) communicating with the setting channel (63) is provided on the peripheral wall of the rotating secondary wheel (05); a slot (65) is further provided on the rotating secondary wheel (05); a spring (66) is provided in the slot (65); a bent sheet (67) is provided on the spring (66); the bent sheet (67) extends from the slot (65); the winding hook (60) is connected to the rotating secondary wheel (05) through a support frame (68); The support frame (68) includes two support plates (69) respectively located on both sides of the slot (65), a pin shaft (70) is provided between the two support plates (69), the pin shaft (70) is connected to a pawl (71), the pawl (71) includes a connecting pawl body (72) rotatably connected to the pin shaft (70) and a contact pawl body (73) for extending from the through opening (64) into the set channel (63) to contact the ratchet (62), the connecting pawl body (72) is provided with a first through opening (74) for the pin shaft (70) to pass through, and the bent sheet (67) is provided with a second through opening (75) for the pin shaft (70) to pass through and is fixedly connected to the connecting pawl body (72).

10. The thread-taking device for the foramen ovale suture head according to claim 9, characterized in that: The connecting claw body (72) is evenly distributed with a plurality of insertion grooves (76) around the first through-hole (74), and the curved sheet body (67) is evenly distributed with a plurality of insertion pieces (77) around the second through-hole (75), and the insertion pieces (77) and the insertion grooves (76) correspond one to one.

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