Vascular suturing device

Abstract

A vascular suturing device, comprising a cavity tube having an open front end and a closed rear end. The device further comprises: a push block, movably arranged in the cavity tube; and a plurality of closure clips, sequentially arranged in the axial direction of the cavity tube in the cavity tube, and capable of being pushed out by the push block. Each of the closure clips consists of two arc-shaped plates arranged opposite each other. A closure area is formed between the front ends of the two arc-shaped plates, and the rear ends of the two arc-shaped plates are both connected to a fixing plate by means of elastic plates. Two elastic plates are predetermined to be bent inward. When the closure clips are located in the cavity tube, the two elastic plates are held open. When the closure clips are pushed out of the cavity tube, the two elastic plates are bent inward due to the elasticity thereof, so that the closure areas are closed. When the closure clips are located in the cavity tube, the closure areas of the closure clips are in an open state. When the closure clips are pushed out of the cavity tube, the closure areas of the closure clips can be automatically closed, thereby achieving the purpose of suturing blood vessels.

Description

Vascular suture device TECHNICAL FIELD

[0001] The present application relates to the technical field of vascular suture, in particular to a vascular suture device. BACKGROUND

[0002] The closure and hemostasis of blood vessels are the key and difficulty in endoscopic surgery. In the prior art, a blood vessel cutting suture device or a disposable tissue closure clamp is generally used to suture blood vessels. However, in actual application, it is found that both the blood vessel cutting suture device and the disposable tissue closure clamp have certain deficiencies, such as:

[0003] Both the blood vessel cutting suture device and the disposable tissue closure clamp have a "clip type" design at the front end (such as CN116898522B), and have movable components such as first and second clamps. When in use, the first and second clamps need to be "opened", which facilitates the closure of the blood vessels, but the first and second clamps also cause the front end of the instrument to have a large volume, so that the medical staff must separate the blood vessels and the surrounding tissues to provide enough space before closing the blood vessels, so as to realize the effective insertion of the instrument. This not only increases the operation difficulty, but also easily causes blood vessel rupture and bleeding during the separation of tissues and the insertion of the instrument, which has great safety hazards and is difficult to apply in narrow operation space. SUMMARY

[0004] (I) Technical problems solved

[0005] In view of the deficiencies of the prior art, the present application provides a vascular suture device which has the advantages of small front end volume, suitable for narrow space, and simple operation.

[0006] (II) Technical solutions

[0007] In order to achieve the above-mentioned purposes of small front end volume, suitable for narrow space, and simple operation, the present application provides the following technical solutions: a vascular suture device comprising a cavity tube with an open front end and a closed rear end, further comprising:

[0008] a push block movably arranged in the cavity tube;

[0009] a plurality of closure clamps arranged and filled in the cavity tube along the axial direction of the cavity tube and can be pushed out by the push block;

[0010] The closure clamp is composed of two arc-shaped plates arranged oppositely, and a closure area is formed between the front ends of the two arc-shaped plates, and the rear ends are connected to the fixed plate through elastic plates;

[0011] The two elastic plates are preset to bend inward, and when the closing clamp is located in the cavity tube, the two elastic plates are stretched, and when the closing clamp is pushed out of the cavity tube, the two elastic plates bend inward under the self elastic force to close the closing area.

[0012] As a preferred technical solution of the present application, a slot is horizontally formed on the fixing plate, and a plug plate is movably inserted in the slot.

[0013] As a preferred technical solution of the present application, two push columns are fixedly installed on the inner walls of the rear ends of the two arc-shaped plates, and when the plug plate is inserted into the slot, the two push columns are pushed and stretched by the plug plate.

[0014] As a preferred technical solution of the present application, a through slot is horizontally and through formed on the push block for the plug plate to pass through.

[0015] As a preferred technical solution of the present application, the plug plate is a square plate, and the slot and the through slot are square slots coupled with the plug plate.

[0016] The front end of the plug plate is shorter than the front opening of the cavity tube.

[0017] As a preferred technical solution of the present application, a fixed handle is fixedly installed at the rear end of the cavity tube, and a pullable movable handle is movably installed.

[0018] A driving mechanism is arranged between the movable handle and the push block, and when the movable handle is pulled, the push block can be driven to move forward by the driving mechanism.

[0019] As a preferred technical solution of the present application, the driving mechanism comprises a rotating rod, a mounting box, a moving plate, a side supporting spring, a pushing tooth, a clamping tooth and a push plate, the top of the movable handle is rotatably arranged in the mounting box through the rotating rod, and the mounting box is fixedly installed at the bottom of the cavity tube.

[0020] The moving plate is movably arranged in the mounting box, and the moving plate is supported by the side supporting spring.

[0021] The top of the moving plate is movably arranged with the pushing tooth, the two sides of the pushing tooth are vertical planes, and the top is an inclined plane, the pushing tooth is movably clamped between adjacent clamping teeth, the clamping teeth are uniformly installed at the bottom of the push plate, and the shape is coupled with the pushing tooth, the push plate is fixedly installed on the side of the push block away from the closing clamp, and the tail end extends to the outside of the cavity tube.

[0022] As a preferred technical solution of the present application, a blocking rod is further fixedly installed in the mounting box to block the movable handle.

[0023] As a preferred technical scheme of the present application, the pushing tooth is fixedly installed on the pressing plate, the pressing plate is movably arranged in the inner cavity formed in the interior of the moving plate, and the bottom is supported by the vertical supporting spring.

[0024] As a preferred technical scheme of the present application, the bottom of the pressing plate is further fixedly installed with a pull rod, the bottom end of the pull rod penetrates through the moving plate and extends to the outside of the installation box, and the bottom of the installation box is formed with a rod groove for moving the pull rod left and right.

[0025] (Three) beneficial effects

[0026] Compared with the prior art, the present application provides a blood vessel suture device with the following beneficial effects:

[0027] 1. The blood vessel suture device, the closure clips are arranged in the cavity tube in sequence along the cavity tube axis direction and filled in the cavity tube, and can be pushed out by the push block, when the closure clips are located in the cavity tube, the closure area of the closure clip is in an open state, when the closure clip is pushed out of the cavity tube, the closure area of the closure clip can be automatically closed, so as to suture the blood vessel.

[0028] 2. The blood vessel suture device, when the closure clip is in the open state, the closure clip can be fixed in the cavity tube by using the friction force between the arc-shaped plate and the inner wall of the cavity tube, avoiding the closure clip from being pulled out, without the need of an additional fixing mechanism, on the contrary, when the closure clip is closed, the closure clip can be easily separated from the cavity tube.

[0029] 3. The blood vessel suture device, the front end of the cavity tube is small in volume and has no movable parts, which is beneficial to the insertion of the instrument, and in use, the blood vessel and the surrounding tissue do not need to be separated greatly, thereby avoiding the risk of blood vessel rupture and bleeding, and being suitable for operation environment with narrow operation space. BRIEF DESCRIPTION OF DRAWINGS

[0030] Fig. 1 is a schematic diagram of the overall structure of the present application;

[0031] Fig. 2 is a sectional view of the overall structure of the present application;

[0032] Fig. 3 is an enlarged schematic diagram of A in Fig. 2 of the present application;

[0033] Fig. 4 is an enlarged schematic diagram of the arc-shaped plate part of the present application;

[0034] Fig. 5 is a front sectional view of the arc-shaped plate part of the present application;

[0035] Fig. 6 is an enlarged schematic diagram of the push block part of the present application;

[0036] Fig. 7 is a sectional view of the installation box part of the present application;

[0037] Fig. 8 is an enlarged schematic diagram of B in Fig. 7 of the present application.

[0038] Fig. 1: 1, cavity tube; 2, arc-shaped plate; 201, closing area; 3, fixed plate; 4, elastic plate; 5, insertion slot; 6, insertion plate; 7, pushing column; 8, pushing block; 9, passing slot; 10, arc-shaped surface; 11, fixed handle; 12, movable handle; 13, pushing plate; 14, occlusal tooth; 15, mounting box; 16, moving plate; 17, side support spring; 18, pushing tooth; 19, pressing plate; 20, inner cavity; 21, vertical support spring; 22, pull rod; 23, rod slot; 24, rotating rod; 25, blocking rod. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0040] Embodiment one:

[0041] Please refer to Figs. 1-6, a blood vessel suture device, comprising a cavity tube 1 with an open front end and a closed rear end, as shown in Fig. 2, the cavity tube 1 is filled with a pushing block 8 which can move along the axial direction of the cavity tube 1, and a plurality of closing clamps are arranged in the cavity tube 1 along the axial direction of the cavity tube 1, the pushing block 8 can push the closing clamps close to the pushing block 8, and the closing clamps close to the open front end of the cavity tube 1 are pushed out of the open front end of the cavity tube 1 through force transmission between the closing clamps.

[0042] In this embodiment, as shown in Figs. 3, 4 and 5, the closing clamps are composed of two oppositely arranged arc-shaped plates 2, the front ends of the two arc-shaped plates 2 form a closing area 201, and the rear ends of the two arc-shaped plates 2 are fixedly connected to a fixed plate 3 through elastic plates 4, the two elastic plates 4 are pre-bent inward, when the closing clamps are in the cavity tube 1, the two elastic plates 4 are stretched (as shown in Fig. 4), and when the closing clamps are pushed out of the cavity tube 1, the two elastic plates 4 are bent inward under the action of their own elastic force, so as to close the closing area 201 (as shown in Fig. 5).

[0043] The material of the elastic plate 4 can be PCU, PP or the like.

[0044] Specifically, as shown in Fig. 5, an insertion slot 5 is horizontally formed in the fixed plate 3, an insertion plate 6 is inserted into the insertion slot 5, the insertion plate 6 is fixedly installed in the cavity tube 1, and the front end of the insertion plate 6 forms an arc-shaped surface 10, a pushing column 7 is fixedly installed on the inner wall of the rear end of each of the two arc-shaped plates 2, and when the insertion plate 6 is inserted into the insertion slot 5, the two pushing columns 7 are pushed and stretched by the insertion plate 6.

[0045] Thus, when the fixed plate 3 is assembled on the plug plate 6, the two pushing columns 7 are stretched, and then the closing area 201 is in the open state;

[0046] Conversely, when the fixed plate 3 is separated from the plug plate 6, the pushing of the plug plate 6 on the pushing column 7 is lost, the elastic plate 4 is reset, and then the closing area 201 is closed.

[0047] In this embodiment, the pushing block 8 is transversely provided with a through groove 9 for the plug plate 6, and the movement of the pushing block 8 does not affect the installation of the plug plate 6;

[0048] Further, the plug plate 6 is a square plate, the plug groove 5 and the through groove 9 are square grooves matched with the plug plate 6, and the front end of the plug plate 6 is slightly shorter than the front opening of the cavity tube 1, as shown in FIG. 2, the front end of the plug plate 6 is less than the overall length of a closing clip relative to the front opening of the cavity tube 1, that is, when the pushing block 8 pushes the closing clip, when the frontmost closing clip is gradually pushed out and separated from the plug plate 6, the support of the plug plate 6 on the pushing column 7 is lost, on the one hand, the closing area 201 is closed (by the closing, the blood vessel wound can be sutured), and on the other hand, the overall height of the closing clip is shortened, so that the friction between the arc-shaped plate 2 and the inner wall of the cavity tube 1 disappears, which is beneficial to the complete separation of the closing clip from the cavity tube 1;

[0049] Specifically in application, the pushing block 8 pushes the closing clip, when the closing clip is on the plug plate 6, the closing clip is in the open state, at this time, by the friction between the arc-shaped plate 2 and the inner wall of the cavity tube 1, the closing clip can be fixed in the cavity tube 1, avoiding the closing clip from moving at will, without the need for an additional fixing mechanism;

[0050] That is, when the blood vessel is sutured by the closing area 201, the overall height of the closing clip is shortened, and the closing clip can easily separate from the cavity tube 1, while the remaining closing clips are fixed in the cavity tube 1 by the friction.

[0051] The plug plate 6 has the functions of keeping the closing clip in the cavity tube 1 in the open state and guiding, and by inserting the plug plate 6 in the plug groove 5, the movement of the closing clip can be limited and guided, preventing it from shaking.

[0052] Embodiment two:

[0053] Please refer to FIGS. 2, 6, 7 and 8, on the basis of embodiment one, in this embodiment, a fixed handle 11 is fixedly installed at the rear end of the cavity tube 1, and a pullable movable handle 12 is movably installed, wherein a driving mechanism is arranged between the movable handle 12 and the pushing block 8, when the movable handle 12 is pulled, the pushing block 8 can be driven to move forward by the driving mechanism;

[0054] In the embodiment, the driving mechanism comprises the rotating rod 24, the mounting box 15, the moving plate 16, the side supporting spring 17, the pushing tooth 18, the engaging tooth 14 and the pushing plate 13. Specifically, as shown in FIG. 7 and FIG. 8, the top of the movable handle 12 is rotatably arranged in the mounting box 15 through the rotating rod 24, and the mounting box 15 is fixedly arranged at the bottom of the cavity tube 1. The moving plate 16 is movably arranged in the mounting box 15, and the moving plate 16 is supported by the side supporting spring 17. The movable handle 12 can be pulled to push the moving plate 16. At this time, the side supporting spring 17 is compressed. After the movable handle 12 is released, the moving plate 16 is reset under the restoring force of the side supporting spring 17, so that the movable handle 12 is also reset.

[0055] As shown in FIG. 7, the blocking rod 25 is also fixedly arranged in the mounting box 15 and located at the right side of the movable handle 12, which is used to block the movable handle 12 and limit the clockwise rotation of the movable handle 12.

[0056] Therefore, in the embodiment, when the movable handle 12 is pulled, the moving plate 16 moves left and compresses the side supporting spring 17. After the movable handle 12 is released, the moving plate 16 moves right and is reset.

[0057] As shown in FIG. 8, the pushing tooth 18 is movably arranged at the top of the moving plate 16. The two sides of the pushing tooth 18 are vertical planes, and the top is an inclined plane. The pushing tooth 18 is movably clamped between the adjacent engaging teeth 14. The engaging teeth 14 are uniformly arranged at the bottom of the pushing plate 13, and the shape is coupled with the pushing tooth 18. The pushing plate 13 is fixedly arranged at the side of the pushing block 8 away from the closing clamp, and the end extends to the outside of the cavity tube 1.

[0058] Therefore, when the moving plate 16 moves left, the pushing plate 13 moves a distance of one engaging tooth 14 through the pushing tooth 18, so that the pushing block 8 moves. When the moving plate 16 moves right, the pushing tooth 18 automatically retracts and does not affect the position of the pushing plate 13.

[0059] In the embodiment, the pushing block 8 is positioned in the cavity tube 1 by friction (the pushing block 8 can be made of rubber material), and has a large friction with the inner wall of the cavity tube 1. Each time the movable handle 12 is pulled, the pushing plate 13 and the pushing block 8 can be moved forward by a certain distance through the pushing tooth 18.

[0060] In the present application, as shown in FIG. 8, the pushing tooth 18 is fixedly arranged on the pressing plate 19, the pressing plate 19 is movably arranged in the inner cavity 20 of the moving plate 16, and the bottom is supported by the vertical supporting spring 21. Therefore, when the pushing tooth 18 moves left, it pushes the engaging tooth 14 to move. When the pushing tooth 18 moves right, it compresses the vertical supporting spring 21 through the pressing plate 19.

[0061] In this embodiment, the movement of the push block 8 can be controlled by pulling the movable handle 12, and can also be directly pushed by the push plate 13, and the operation mode is diversified.

[0062] Further, a scale can be arranged on the outer wall of the push plate 13, and through the scale, the displacement distance of the push plate 13 can be directly and accurately known, and then the displacement distance of the push block 8 is controlled.

[0063] Embodiment three:

[0064] Please refer to FIG. 7 and FIG. 8, on the basis of the embodiment one and the embodiment two, in this embodiment, the bottom of the pressing plate 19 is further fixedly installed with a pull rod 22, the bottom end of the pull rod 22 penetrates through the moving plate 16 and extends to the outside of the installation box 15, the bottom of the installation box 15 is provided with a rod groove 23 for moving the pull rod 22 left and right;

[0065] By pulling down the pressing plate 19 through the pull rod 22, the push gear 18 can be moved downward, so that it is separated from the engaging tooth 14, thereby facilitating the backward movement and resetting of the push plate 13 and the push block 8;

[0066] When all the closure clips in the cavity tube 1 are used up, the push plate 13 and the push block 8 can be controlled to move backward and reset, and new closure clips are refilled, and when the closure clips are inserted from the front end of the cavity tube 1, the refilling is completed.

[0067] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A blood vessel suturing device comprising a lumen (1) open at the front end and closed at the rear end, characterized in that Also include: Push block (8), activity is set in the cavity tube (1); A number of closure clips, arranged in turn along the axis direction of the cavity tube (1) filled in the cavity tube (1), can be pushed out by the push block (8); The closure clip is composed of two arc-shaped plates (2) arranged oppositely, and the front ends of the two arc-shaped plates (2) form a closure area (201), and the rear ends are connected to the fixed plate (3) through the elastic plate (4); Two said elastic plate (4) is preset to bend inward, when the closure clip is located in the cavity tube (1), the two elastic plates (4) are opened, when the closure clip is pushed out of the cavity tube (1), the two elastic plates (4) are bent inward under the action of its own elastic force, so that the closure area (201) is closed; The fixed plate (3) is provided with a slot (5) transversely, the insert plate (6) is movably inserted in the slot (5), the insert plate (6) is fixedly installed in the cavity tube (1), and the front end forms an arc surface (10); The rear end of the cavity tube (1) is fixedly installed with a fixed handle (11), and a movable handle (12) is movably installed; A driving mechanism is arranged between the movable handle (12) and the push block (8), when the movable handle (12) is pulled, the push block (8) can be driven to move forward through the driving mechanism; Two said arc-shaped plate (2) rear end of the inner wall is fixedly installed with push column (7), when the insert plate (6) is inserted into the slot (5), the two push column (7) is pushed and opened by the insert plate (6).

2. The vascular suturing device according to claim 1, characterized in that: The push block (8) is provided with a through slot (9) transversely through the insert plate (6).

3. The vascular suturing device according to claim 2, characterized in that: The insert plate (6) is a square plate, and the slot (5) and the through slot (9) are square slots coupled with the insert plate (6); The front end of the insert plate (6) is shorter than the front opening of the cavity tube (1).

4. The vascular suturing device according to claim 1, characterized in that: The driving mechanism comprises a rotating rod (24), a mounting box (15), a moving plate (16), a side supporting spring (17), a pushing tooth (18), a clamping tooth (14) and a push plate (13), the top of the movable handle (12) is rotatably arranged in the mounting box (15) through the rotating rod (24), and the mounting box (15) is fixedly installed at the bottom of the cavity tube (1); The mounting box (15) is movably provided with a moving plate (16) left and right, the moving plate (16) is supported by the side supporting spring (17), and the movable handle (12) can be pulled to push the moving plate (16); The top of the moving plate (16) is movably provided with a pushing tooth (18), the two sides of the pushing tooth (18) are vertical planes, and the top is an inclined plane, the pushing tooth (18) is movably clamped between adjacent clamping teeth (14), the clamping teeth (14) are evenly installed at the bottom of the push plate (13), the shape is coupled with the pushing tooth (18), and the push plate (13) is fixedly installed on one side of the push block (8) away from the closure clip, and the tail end extends to the outside of the cavity tube (1).

5. A blood vessel suturing device according to claim 4, characterized in that: The mounting box (15) is also fixedly installed with a stop rod (25) for blocking the movable handle (12).

6. The blood vessel suturing device according to claim 4, characterized in that: The pushing teeth (18) are fixedly installed on a pressing plate (19), the pressing plate (19) is movably arranged in an inner cavity (20) opened in the inside of the moving plate (16), and the bottom is supported by a vertical supporting spring (21).

7. The blood vessel suturing device according to claim 6, characterized in that: The bottom of the pressing plate (19) is also fixedly installed with a pull rod (22), the bottom end of the pull rod (22) penetrates through the moving plate (16) and extends to the outside of the installation box (15), and the bottom of the installation box (15) is provided with a rod groove (23) for moving the pull rod (22) left and right.

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