Vascular suture closing device and suture method thereof

Abstract

The invention relates to the field of blood vessel suturing instruments, and discloses a blood vessel suture closing device which comprises a suturing instrument body and a needle handle, the suturing instrument body is slidably connected with the needle handle, sliding grooves are symmetrically formed in the right side of the front surface of the suturing instrument body, and a lantern ring is slidably connected to the outer side wall of the suturing instrument body. Sliding blocks are integrally formed in the positions, located in the two sliding grooves, of the inner side wall of the lantern ring, a penetrating through opening is formed in the position, located between the two sliding grooves, of the front surface of the stitching instrument body, and a limiting mechanism is fixedly connected to the position, located in the through opening, of the inner side wall of the stitching instrument body. Before the stitch control handle adjusts the stitch, when the lantern ring is not abutted by the stitch control handle, the rectangular positioning block is clamped in the rectangular positioning opening, and at the moment, the needle handle can be tightly positioned to prevent the needle handle from sliding along the interior of the stitching instrument main body.

Description

Technical Field

[0001] The present invention relates to the field of vascular suturing devices, and more particularly to a vascular suture closing device and a suturing method thereof. Background Art

[0002] In recent years, interventional surgery is the preferred treatment option for cardiovascular and cerebrovascular diseases such as hemangioma, vascular stenosis, and acute myocardial infarction. With its advantages of less trauma, high efficiency, precise treatment, and safety, it has become the third largest clinical treatment method after surgical and internal medicine treatment. Interventional surgery is inseparable from vascular puncture, of which femoral artery puncture is not only the classic route for coronary intervention, but also occupies 90% of the puncture routes in peripheral interventional surgery. Hemostasis after femoral artery puncture has always been a problem that has troubled clinical physicians. VCD uses procoagulants, sutures, or staple clips to close the puncture point to stop bleeding. Currently, the VCDs used in domestic clinical practice are basically produced by foreign manufacturers, and can be mainly divided into two categories: vascular suturing devices and vascular occluders; Patent Publication No. (CN218979046U) discloses a vascular suturing device, including a suturing device body and a needle handle, and a temporary limiting assembly including a temporary limiting pin, a reset spring, a temporary limiting piece and a pressing spring; a temporary limiting groove is provided on the outer wall of the needle handle, and the end of the temporary limiting pin penetrates through the outer wall of the suturing device body and then is embedded in the temporary limiting groove, and a second limiting ring located outside the suturing device body is fixed on the temporary limiting pin; before the needle handle needs to be pulled, the temporary limiting piece is used to press the temporary limiting pin under the elastic force of the pressing spring, so that the end of the temporary limiting pin is embedded in the temporary limiting groove, and the needle handle is limited to prevent the needle handle from accidentally sliding, and the temporary limiting piece is rotated to deviate from the temporary limiting pin, and the temporary limiting pin automatically pops out and disengages from the temporary limiting groove under the elastic force of the reset spring, so that the needle handle can be pulled, which is more convenient to operate and is conducive to maintaining the stability of the vascular suturing device; In the above technology, a temporary limiting assembly is set between the suturing device body and the needle handle. Before the needle handle needs to be pulled, the temporary limiting plate is used to press the temporary limiting pin under the elastic force of the compression spring, so that the end of the temporary limiting pin is embedded in the temporary limiting groove to limit the needle handle to prevent the needle handle from accidentally sliding. The temporary limiting plate is rotated to deviate from the temporary limiting pin, and the temporary limiting pin automatically pops out and disengages from the temporary limiting groove under the elastic force of the reset spring, so that the needle handle can be pulled. This limiting method is quite complicated to operate and affects the suturing rhythm, and needs to be improved. For this reason, we propose a vascular suture closing device and a suturing method thereof. Summary of the invention

[0003] The main technical problem solved by the present invention is to provide a vascular suture closing device, which can solve the problem that a temporary limiting component is set between the suturing device body and the needle handle in the above-mentioned technology. Before the needle handle needs to be pulled, a temporary limiting plate is used to press the temporary limiting pin under the elastic force of a compression spring, so that the end of the temporary limiting pin is embedded in the temporary limiting groove to limit the needle handle to prevent the needle handle from accidentally sliding. The temporary limiting plate is rotated to deviate from the temporary limiting pin, and the temporary limiting pin automatically pops out and disengages from the temporary limiting groove under the elastic force of a reset spring, so that the needle handle can be pulled. The operation of this limiting method is quite complicated, which affects the suturing rhythm.

[0004] To solve the above technical problems, according to one aspect of the present invention, more specifically, a blood vessel suture closing device includes a stapler body and a needle handle, the stapler body is slidably connected to the needle handle, a sliding groove is symmetrically opened on the right side of the front surface of the stapler body, a ring is slidably connected to the outer wall of the stapler body, a sliding block is integrally formed on the inner wall of the ring located inside the two sliding grooves, a through opening is opened on the front surface of the stapler body between the two sliding grooves, and the inner wall of the stapler body is fixedly connected to a limiting mechanism inside the opening.

[0005] Furthermore, a marking cavity is integrally formed on the left side of the outer side wall of the stapler body.

[0006] Furthermore, a handle is symmetrically fixedly connected to the right side of the outer side wall of the stapler body.

[0007] Furthermore, the stapler body also includes a thread foot control handle, a quick scissor mouth, a proximal part, a sheath, a thread foot, a guide wire exchange port, a distal part and a marking cavity opening.

[0008] Furthermore, the outer side wall of the needle handle is provided with a rectangular positioning opening, a wedge-shaped bayonet opening 1 and a wedge-shaped bayonet opening 2 in sequence from left to right.

[0009] Furthermore, the outer side wall of the needle handle is integrally formed with a collar and a handle from left to right.

[0010] Furthermore, the limiting mechanism includes a movable block, a movable cavity is opened inside the movable block, a piston plate 1 is slidably connected inside the movable cavity, a spring 1 is symmetrically fixedly connected between the piston plate 1 and the movable cavity, a rectangular positioning block is fixedly connected to the rear surface of the piston plate 1, and the rear end of the rectangular positioning block passes through the interior of the rectangular positioning opening.

[0011] Furthermore, the outer side wall of the stapler body is symmetrically fixedly connected with a fixing block on the left side of the collar, and a second spring is fixedly connected between the fixing block and the collar.

[0012] Furthermore, a pressure block is integrally formed on the front surface of the ring, and the pressure block is a hollow structure with an open front surface, and a wedge-shaped pressure frame is slidably connected to the inside of the pressure block, and a spring three is symmetrically fixedly connected between the wedge-shaped pressure frame and the pressure block, and the internal front surface of the wedge-shaped pressure frame is fixedly connected to a connecting rod one, and the internal rear surface of the pressure block is fixedly connected to an air pressure box, and a ventilation nozzle is fixedly connected between the air pressure box and the active chamber, and the internal sliding connection of the air pressure box is connected to a piston plate two, and the front surface of the piston plate two is fixedly connected to a connecting rod two, and the interior of the pressure block is fixedly connected with a cylindrical fixing rod between the connecting rod two and the connecting rod one, and the outer side wall of the cylindrical fixing rod is rotatably connected to a connecting rod three, and the two ends of the connecting rod three are rotatably connected to the upper surface of the connecting rod one and the upper surface of the connecting rod two through a rotating shaft respectively.

[0013] According to another aspect of the present invention, a suturing method of a blood vessel suture closure device is provided, comprising the following steps: S1, insert the guide wire through the sheath and remove the sheath; S2. Push the Perclose joystick until blood spurts out in a pulsatile manner; open the suture wings and gently withdraw the suture system until resistance is felt and blood flow in the marker tube stops; S3, press the needle plug to suture the blood vessel and maintain the tension for 10 seconds; S4, remove the needle plug and cut the suture using the quick scissors device; S5. Lead out the suture and slowly pull to tighten the knot; S6. Cut off the sutures and observe that there is no bleeding at the puncture site before bandaging with dressing materials and elastic bandage.

[0014] The beneficial effects of the blood vessel suture closing device of the present invention are: Before the thread foot control handle adjusts the thread foot, when the collar is not abutted by the thread foot control handle, the rectangular positioning block will be engaged inside the rectangular positioning opening, and the needle handle can be tightly positioned at this time to prevent the needle handle from sliding along the inside of the stapler body. When the thread foot control handle abuts against the collar, the rectangular positioning block will move a certain distance with the collar, and the rectangular positioning block will be engaged inside the wedge-shaped bayonet opening. At this time, when the needle handle is pressed to push toward the inside of the stapler body, a limiting effect can be achieved, and the pushing of the needle handle will not be completely blocked, thereby not affecting the subsequent adjustment of various operations of various components of the stapler body. When the stitch foot is adjusted by the stitch foot control handle, the stitch foot control handle will be rotated to press the pressure block against the ring and move to the right for a distance. Then, under the pull of the second spring, the left side of the ring will press against the right side of the stapler body, and the pressure block will stop at the front limit of the rubber control handle to prevent the rubber control handle from moving due to accidental touch. When the pressure block is squeezed by the thread foot control handle, it will first push the wedge-shaped pressure frame to shrink toward the inside of the pressure block, and then push the connecting rod three on the outer wall of the cylindrical fixed rod to rotate through the connecting rod one, so that the connecting rod two moves forward, pulling the piston piece two inside the air pressure box to move forward, so that the air pressure box will extract the gas inside the active cavity through the ventilation nozzle, so that the piston piece one drives the rectangular positioning block to shrink into the active cavity and escape from the rectangular positioning port. At this time, the thread foot control handle continues to squeeze the pressure block, which can push the ring to slide to the right along the outside of the suturer body, and when the pressure block is blocked by the front limit of the rubber control handle, the wedge-shaped pressure frame loses its squeezing, and the piston piece one drives the rectangular positioning block to extend out from the active cavity again, thereby facilitating the subsequent rectangular positioning block to engage and position step by step from the inside of the wedge-shaped bayonet one and the wedge bayonet two. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 This is a schematic diagram of the overall structure of a blood vessel suture closing device of the present invention; Figure 2 A schematic diagram of the mechanism of a needle handle of a vascular suture closing device of the present invention; Figure 3 It is a schematic diagram of a partial cross-section connection structure of a ring and a limiting mechanism of a blood vessel suture closing device of the present invention; Figure 4 The present invention is a schematic top view of the cross section of a pressure block of a vascular suture closing device.

[0017] In the figure: 1. stapler body; 2. needle handle; 3. sliding groove; 4. collar; 5. sliding block; 6. through port; 7. limit mechanism; 8. marking cavity; 9. handle; 10. rectangular positioning port; 11. wedge-shaped bayonet one; 12. wedge-shaped bayonet two; 13. collar; 14. handle head; 15. movable block; 16. movable cavity; 17. piston plate one; 18. spring one; 19. rectangular positioning block; 20. fixed block; 21. spring two; 22. pressure block; 23. wedge-shaped pressure frame; 24. spring three; 25. connecting rod one; 26. air pressure box; 27. ventilation nozzle; 28. piston plate two; 29. ​​connecting rod two; 30. cylindrical fixed rod; 31. connecting rod three. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0019] According to one aspect of the present invention, Figure 1-4As shown, a blood vessel suture closing device is provided, comprising a stapler body 1 and a needle handle 2, wherein the stapler body 1 is slidably connected to the needle handle 2, a sliding groove 3 is symmetrically provided on the right side of the front surface of the stapler body 1, a collar 4 is slidably connected to the outer wall of the stapler body 1, a sliding block 5 is integrally formed on the inner wall of the collar 4 located inside the two sliding grooves 3, a through-type opening 6 is provided on the front surface of the stapler body 1 between the two sliding grooves 3, and a limiting mechanism 7 is fixedly connected to the inner wall of the stapler body 1 located inside the opening 6; In the present invention, the collar 4 can slide along the stapler body 1 through the sliding groove 3 and the sliding block 5, and then drive the limiting mechanism 7 to slide along the through opening 6. The position of the limiting mechanism 7 on the needle handle 2 can be adjusted to different positions to achieve different positioning effects.

[0020] In this embodiment, a marking cavity 8 is integrally formed on the left side of the outer side wall of the stapler body 1; Provides a pathway to secure the device into the artery when in use.

[0021] In this embodiment, a handle 9 is symmetrically fixedly connected to the right side of the outer side wall of the stapler body 1; Convenient for handheld devices.

[0022] In this embodiment, the stapler body 1 also includes a thread foot control handle, a quick scissor port, a proximal portion, a sheath, a thread foot, a guide wire exchange port, a distal portion, and a marking cavity opening; The mutual cooperation of various components can achieve a rapid suturing effect.

[0023] In this embodiment, the outer wall of the needle handle 2 is provided with a rectangular positioning opening 10, a wedge-shaped bayonet opening 11 and a wedge-shaped bayonet opening 2 12 from left to right in sequence, the outer wall of the needle handle 2 is integrally formed with a collar 13 and a handle head 14 from left to right, the limiting mechanism 7 includes a movable block 15, an movable cavity 16 is provided inside the movable block 15, a piston piece 17 is slidably connected inside the movable cavity 16, a spring 18 is symmetrically fixedly connected between the piston piece 17 and the movable cavity 16, a rectangular positioning block 19 is fixedly connected to the rear surface of the piston piece 17, and the rear end of the rectangular positioning block 19 penetrates into the interior of the rectangular positioning opening 10; Before the stitch foot control handle adjusts the stitch foot, when the ring 4 is not abutted by the stitch foot control handle, the rectangular positioning block 19 will be engaged in the inside of the rectangular positioning opening 10. At this time, the needle handle 2 can be tightly positioned to prevent the needle handle 2 from sliding along the inside of the suture device body 1. When the stitch foot control handle abuts against the ring 4, the rectangular positioning block 19 will move a certain distance with the ring 4. At this time, the rectangular positioning block 19 will be engaged in the inside of the wedge-shaped bayonet 11. At this time, when the needle handle 2 is pressed toward the inside of the suture device body 1, it can play a limiting effect and will not completely block the push of the needle handle 2, thereby not affecting the subsequent adjustment operations of the various components of the suture device body 1.

[0024] In this embodiment, the outer wall of the stapler body 1 is symmetrically fixedly connected to the left of the ring 4 with a fixed block 20, a spring 21 is fixedly connected between the fixed block 20 and the ring 4, and a pressure block 22 is integrally formed on the front surface of the ring 4. The pressure block 22 is a hollow structure with an open front surface, and a wedge-shaped pressure frame 23 is slidably connected to the inside of the pressure block 22. A spring 3 24 is symmetrically fixedly connected between the wedge-shaped pressure frame 23 and the pressure block 22, and a connecting rod 25 is fixedly connected to the inner front surface of the wedge-shaped pressure frame 23. The inner surface of the pressure block 22 is fixedly connected to the connecting rod 25. The rear surface is fixedly connected with an air pressure box 26, a ventilation nozzle 27 is fixedly connected between the air pressure box 26 and the movable chamber 16, a piston plate 28 is slidably connected inside the air pressure box 26, a connecting rod 29 is fixedly connected to the front surface of the piston plate 28, a cylindrical fixed rod 30 is fixedly connected inside the pressure block 22 between the connecting rod 29 and the connecting rod 1 25, a connecting rod 3 31 is rotatably connected to the outer wall of the cylindrical fixed rod 30, and both ends of the connecting rod 3 31 are rotatably connected to the upper surface of the connecting rod 1 25 and the upper surface of the connecting rod 2 29 through a rotating shaft respectively; When the stitch foot is adjusted by the stitch foot control handle, the stitch foot control handle rotates to squeeze the pressure block 22 against the ring 4 and move to the right for a distance. Then, under the pull of the spring 21, the left side of the ring 4 will press against the right side of the stapler body 1, and the pressure block 22 will stop at the front limit of the rubber control handle to prevent the rubber control handle from moving due to accidental touch. When the pressure block 22 is squeezed by the stitch foot control handle, it will first push the wedge-shaped pressure frame 23 to shrink toward the inside of the pressure block 22, and then push the connecting rod 3 31 on the outer wall of the cylindrical fixing rod 30 to rotate through the connecting rod 1 25, so that the connecting rod 2 29 moves forward, pulling the piston piece 2 28 inside the air pressure box 26 to When the suture device 1 is in the state of being pressed, the pressure box 26 is moved forward, so that the air pressure box 26 will extract the gas inside the active chamber 16 through the air exchange nozzle 27, so that the piston piece 17 drives the rectangular positioning block 19 to shrink into the active chamber 16 and escape from the rectangular positioning port 10. At this time, the stitch foot control handle continues to squeeze the pressure block 22, which can push the ring 4 to slide to the right along the outer side of the suture device body 1, and when the pressure block 22 is blocked by the front limit of the rubber control handle, the wedge-shaped pressure frame 23 loses its squeezing, and the piston piece 17 drives the rectangular positioning block 19 to extend out from the active chamber 16 again, thereby facilitating the subsequent rectangular positioning block 19 to be gradually engaged and positioned from the inside of the wedge-shaped bayonet 11 and the wedge-shaped bayonet 2 12.

[0025] According to another aspect of the present invention, a suturing method of a blood vessel suture closure device is provided, comprising the following steps: S1, insert the guide wire through the sheath and remove the sheath; S2. Push the Perclose joystick until blood spurts out in a pulsatile manner; open the suture wings and gently withdraw the suture system until resistance is felt and blood flow in the marker tube stops; S3, press the needle plug to suture the blood vessel and maintain the tension for 10 seconds; S4, remove the needle plug and cut the suture using the quick scissors device; S5. Lead out the suture and slowly pull to tighten the knot; S6. Cut off the sutures and observe that there is no bleeding at the puncture site before bandaging with dressing materials and elastic bandage.

[0026] The working principle of the device is as follows: the collar 4 of the present invention can slide along the stapler body 1 through the sliding groove 3 and the sliding block 5, and then drive the limiting mechanism 7 to slide along the through opening 6, and adjust the position of the limiting mechanism 7 on the needle handle 2 to different positions, thereby achieving different positioning effects.

[0027] The electrical components that appear in this article are all electrical components that exist in reality.

[0028] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the protection scope of the present invention.

Claims

1. A blood vessel suture closing device, comprising a suture device body (1) and a needle handle (2), characterized in that: The suture device body (1) is slidably connected to the needle handle (2); a sliding groove (3) is symmetrically provided on the right side of the front surface of the suture device body (1); a ring (4) is slidably connected to the outer wall of the suture device body (1); a sliding block (5) is integrally formed on the inner wall of the ring (4) located inside the two sliding grooves (3); a through-type opening (6) is provided on the front surface of the suture device body (1) between the two sliding grooves (3); and a limiting mechanism (7) is fixedly connected to the inner wall of the suture device body (1) located inside the opening (6).

2. A blood vessel suture closing device according to claim 1, characterized in that: A marking cavity (8) is integrally formed on the left side of the outer side wall of the stapler body (1).

3. A blood vessel suture closing device according to claim 1, characterized in that: A handle (9) is symmetrically fixedly connected to the right side of the outer side wall of the stapler body (1).

4. A blood vessel suture closing device according to claim 1, characterized in that: The stapler body (1) further comprises a thread foot control handle, a quick scissor opening, a proximal portion, a sheath, a thread foot, a guide wire exchange opening, a distal portion and a marking cavity opening.

5. A blood vessel suture closing device according to claim 4, characterized in that: The outer wall of the needle handle (2) is provided with a rectangular positioning opening (10), a wedge-shaped snap-in opening 1 (11) and a wedge-shaped snap-in opening 2 (12) in sequence from left to right.

6. A blood vessel suture closing device according to claim 1, characterized in that: The outer side wall of the needle handle (2) is integrally formed with a collar (13) and a handle head (14) from left to right.

7. A blood vessel suture closing device according to claim 5, characterized in that: The limiting mechanism (7) comprises a movable block (15), a movable cavity (16) is provided inside the movable block (15), a piston plate (17) is slidably connected inside the movable cavity (16), a spring (18) is symmetrically fixedly connected between the piston plate (17) and the movable cavity (16), a rectangular positioning block (19) is fixedly connected to the rear surface of the piston plate (17), and the rear end of the rectangular positioning block (19) passes through the interior of the rectangular positioning opening (10).

8. The blood vessel suture closing device according to claim 1, characterized in that: The outer wall of the stapler body (1) is symmetrically fixedly connected to a fixing block (20) located on the left side of the collar (4), and a second spring (21) is fixedly connected between the fixing block (20) and the collar (4).

9. The blood vessel suture closing device according to claim 7, characterized in that: A pressure block (22) is integrally formed on the front surface of the collar (4); the pressure block (22) is a hollow structure with an opening on the front surface; a wedge-shaped pressure frame (23) is slidably connected to the inside of the pressure block (22); a spring three (24) is symmetrically fixedly connected between the wedge-shaped pressure frame (23) and the pressure block (22); a connecting rod one (25) is fixedly connected to the inner front surface of the wedge-shaped pressure frame (23); an air pressure box (26) is fixedly connected to the inner rear surface of the pressure block (22); and the air pressure box (26) is fixedly connected to the movable cavity (16). A ventilation nozzle (27) is fixedly connected to the air pressure box (26); a piston plate 2 (28) is slidably connected inside the air pressure box (26); a connecting rod 2 (29) is fixedly connected to the front surface of the piston plate 2 (28); a cylindrical fixing rod (30) is fixedly connected inside the pressure block (22) between the connecting rod 2 (29) and the connecting rod 1 (25); a connecting rod 3 (31) is rotatably connected to the outer wall of the cylindrical fixing rod (30); and two ends of the connecting rod 3 (31) are rotatably connected to the upper surface of the connecting rod 1 (25) and the upper surface of the connecting rod 2 (29) through a rotating shaft.

10. A suturing method for a blood vessel suture closure device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, insert the guide wire through the sheath and remove the sheath; S2. Push the Perclose joystick until blood spurts out in a pulsatile manner; open the suture wings and gently withdraw the suture system until resistance is felt and blood flow in the marker tube stops; S3, press the needle plug to suture the blood vessel and maintain the tension for 10 seconds; S4, remove the needle plug and cut the suture using the quick scissors device; S5. Lead out the suture and slowly pull to tighten the knot; S6. Cut off the sutures and observe that there is no bleeding at the puncture site before bandaging with dressing materials and elastic bandage.

Images