A vascular suture device

Abstract

The present invention relates to the technical field of blood vessel suturing, and discloses a blood vessel suturing device, including a lumen with an opening at the front end and a closed rear end, and also including: a push block, which is movably arranged in the lumen; a plurality of closing clips, which are arranged in sequence along the axial direction of the lumen and filled in the lumen, and can be pushed out by the push block; the closing clip is composed of two relatively arranged arc plates, a closing area is formed between the front ends of the two arc plates, and the rear ends are connected to a fixed plate through elastic plates; the two elastic plates are preset to bend inward, when the closing clip is located in the lumen, the two elastic plates are stretched open, when the closing clip is pushed out of the lumen, the two elastic plates are bent inward under the action of their own elastic force to close the closing area. When the closing clip is located in the lumen, the closing area of ​​the closing clip is in an open state, when the closing clip is pushed out of the lumen, the closing area of ​​the closing clip can be automatically closed, thereby achieving the purpose of suturing the blood vessel.

Description

Technical Field

[0001] The invention relates to the technical field of blood vessel suturing, in particular to a blood vessel suturing device. Background Art

[0002] Closure and hemostasis of blood vessels are the key and difficult points in laparoscopic surgery. In the prior art, blood vessels are generally sutured using blood vessel cutting and suturing devices or disposable tissue closure clips. However, in actual applications, we have found that both blood vessel cutting and suturing devices and disposable tissue closure clips have certain shortcomings, such as:

[0003] Whether it is a vascular cutting stapler or a disposable tissue closure clamp, the front end is a "clip-type" design (such as CN116898522B), with movable parts, such as a first clamp and a second clamp. When in use, the first clamp and the second clamp need to be "opened", which makes it easier to close the blood vessel. At the same time, the first clamp and the second clamp also cause the front end of the instrument to be larger, so that medical staff must separate the blood vessel from the surrounding tissue to leave enough space before closing the blood vessel in order to effectively insert the instrument. This not only increases the difficulty of operation, but also easily causes blood vessels to rupture and bleed during the process of separating tissues and inserting instruments. There are great safety hazards, and it is difficult to use in surgeries with narrow operating space. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a vascular suture device, which has the advantages of small front-end volume, adaptability to narrow spaces, and easy operation.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of small front-end volume, suitable for narrow space, and easy operation, the present invention provides the following technical solution: a vascular suture device, including a lumen with an opening at the front end and a closed rear end, and also including:

[0008] A push block, movably arranged in the cavity;

[0009] A plurality of closing clips are arranged in sequence along the axial direction of the lumen and filled in the lumen, and can be pushed out by a push block;

[0010] The closing clamp is composed of two arc-shaped plates arranged opposite to each other, a closing 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 inwards. When the closing clip is located in the cavity, the two elastic plates are stretched apart. When the closing clip is pushed out of the cavity, the two elastic plates bend inwards under the action of their own elastic force to close the closing area.

[0012] As a preferred technical solution of the present invention, a slot is transversely provided on the fixing plate, an insert plate is movably inserted in the slot, the insert plate is fixedly installed in the cavity tube, and an arc surface is formed at the front end.

[0013] As a preferred technical solution of the present invention, pushing columns are fixedly installed on the inner walls of the rear ends of the two arc-shaped plates. When the plug-in plate is inserted into the slot, the two pushing columns are pushed and spread apart by the plug-in plate.

[0014] As a preferred technical solution of the present invention, a through slot for allowing the insert plate to pass through is provided transversely through the push block.

[0015] As a preferred technical solution of the present invention, the plug board is a square board, and the slots and the through slots are both square slots coupled to the plug board;

[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 invention, a fixed handle is fixedly installed at the rear end of the cavity tube, and a movable handle that can be pulled is movably installed;

[0018] A driving mechanism is arranged between the movable handle and the pushing block. When the movable handle is pulled, the pushing block can be driven to move forward through the driving mechanism.

[0019] As a preferred technical solution of the present invention, the driving mechanism includes a rotating rod, a mounting box, a moving plate, a side support spring, a pushing tooth, an engaging tooth and a pushing 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] A movable plate is movably arranged in the installation box, the movable plate is supported by a side support spring, and the movable handle can be pulled to push the movable plate;

[0021] The top of the movable plate is movably and retractably provided with a 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 engaging teeth, and the engaging teeth are evenly 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 facing away from the closing clamp, and the end extends to the outside of the cavity.

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

[0023] As a preferred technical solution of the present invention, the pushing teeth are fixedly mounted on the pressure plate, the pressure plate is movably arranged in an inner cavity opened inside the movable plate, and the bottom is supported by a vertical support spring.

[0024] As a preferred technical solution of the present invention, a pull rod is fixedly installed at the bottom of the pressure plate, the bottom end of the pull rod passes through the movable plate and extends to the outside of the installation box, and a rod groove is opened at the bottom of the installation box for moving the pull rod left and right.

[0025] (III) Beneficial effects

[0026] Compared with the prior art, the present invention provides a vascular suture device having the following beneficial effects:

[0027] 1. The vascular suture device has a closing clip which is sequentially arranged along the axial direction of the lumen and filled in the lumen, and can be pushed out by a push block. When the closing clip is located in the lumen, the closing area of ​​the closing clip is in an open state. When the closing clip is pushed out of the lumen, the closing area of ​​the closing clip can be automatically closed, thereby suturing the blood vessel.

[0028] 2. The vascular suture device can fix the closing clip in the lumen by using the friction between the arc plate and the inner wall of the lumen when the closing clip is in the open state, so as to prevent the closing clip from coming out without the need for an additional fixing mechanism. Conversely, when the closing clip is closed, the closing clip can be easily detached from the lumen.

[0029] 3. The front end of the lumen of this vascular suture device is small in size and has no movable parts, which is convenient for the insertion of the device. When in use, there is no need to significantly separate the blood vessels from the surrounding tissues, thereby avoiding the risk of blood vessel rupture and bleeding. It is suitable for surgical environments with narrow operating space. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0032] Figure 3 For the present invention Figure 2 The enlarged schematic diagram of point A in the middle;

[0033] Figure 4 It is an enlarged schematic diagram of the curved plate portion of the present invention;

[0034] Figure 5 It is a front cross-sectional view of the curved plate portion of the present invention;

[0035] Figure 6 It is an enlarged schematic diagram of the push block part of the present invention;

[0036] Figure 7 A cross-sectional view of a mounting box portion of the present invention;

[0037] Figure 8 For the present invention Figure 7 A magnified schematic diagram of point B in the middle.

[0038] In the figure: 1, cavity tube; 2, arc plate; 201, closed area; 3, fixed plate; 4, elastic plate; 5, slot; 6, plug plate; 7, pushing column; 8, pushing block; 9, through slot; 10, arc surface; 11, fixed handle; 12, movable handle; 13, push plate; 14, bite teeth; 15, installation box; 16, movable plate; 17, side support spring; 18, push teeth; 19, pressure plate; 20, inner cavity; 21, vertical support spring; 22, pull rod; 23, rod slot; 24, rotating rod; 25, stop rod. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Embodiment 1:

[0041] See also Figure 1-Figure 6 A vascular suture device comprises a lumen 1 with an opening at the front end and a closed rear end, such as Figure 2 As shown, a push block 8 is filled in the lumen 1 and can move along the axial direction of the lumen 1. A plurality of closing clips are arranged in sequence along the axial direction of the lumen 1 and filled in the lumen 1. The push block 8 can push the closing clip close to the push block 8. Through force transmission between the closing clips, the closing clip close to the front end opening of the lumen 1 is pushed out from the front end opening of the lumen 1.

[0042] In this embodiment, if Figure 3 , Figure 4 and Figure 5 As shown, the closing clip is composed of two arc-shaped plates 2 arranged opposite to each other, a closing area 201 is formed between the front ends of the two arc-shaped plates 2, and the rear ends are fixedly connected to the fixing plate 3 through elastic plates 4. The two elastic plates 4 are preset to be bent inwardly. When the closing clip is located in the cavity 1, the two elastic plates 4 are stretched open (such as Figure 4 ), when the closing clip is pushed out of the lumen 1, the two elastic plates 4 bend inwards under their own elastic force to close the closing area 201 (such as Figure 5 );

[0043] The material of the elastic plate 4 may be PCU, PP, etc.;

[0044] Specifically, Figure 5As shown, a slot 5 is transversely provided on the fixing plate 3, and an insert plate 6 is inserted into the slot 5. The insert plate 6 is fixedly installed in the cavity tube 1, and an arc surface 10 is formed at the front end. Pushing columns 7 are fixedly installed on the inner walls of the rear ends of the two arc-shaped plates 2. When the insert plate 6 is inserted into the slot 5, the two pushing columns 7 will be pushed and stretched open by the insert plate 6;

[0045] Thus, when the fixing plate 3 is mounted on the inserting plate 6, the two pushing columns 7 are stretched open, and thus the closed area 201 is in an open state;

[0046] On the contrary, when the fixing plate 3 is separated from the inserting plate 6, the inserting plate 6 will lose its pushing force on the pushing column 7, and the elastic plate 4 will be reset, thereby closing the closing area 201.

[0047] In this embodiment, a through slot 9 is formed transversely through the push block 8 for the insertion plate 6 to pass through, and the movement of the push block 8 does not affect the installation of the insertion plate 6;

[0048] Furthermore, the plug plate 6 is a square plate, the slot 5 and the through slot 9 are both square slots adapted to 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, such as Figure 2 As shown, the front end of the plug plate 6 is smaller than the overall length of a closing clip relative to the front opening of the lumen 1, that is, when the pushing block 8 pushes the closing clip, after 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 will be closed (by means of this closure, the blood vessel wound can be sutured), and on the other hand, the overall height of the closing clip will be shortened, so that the friction between the arc plate 2 and the inner wall of the lumen 1 disappears, which is conducive to the complete removal of the closing clip from the lumen 1;

[0049] Specifically, in the application, the function of the push block 8 is to push the closing clip. When the closing clip is located on the plug plate 6, the closing clip is in an open state. At this time, the closing clip can be fixed in the lumen 1 by the friction between the arc plate 2 and the inner wall of the lumen 1, so as to prevent the closing clip from moving at will, and no additional fixing mechanism is required;

[0050] That is, after the blood vessel is sutured using the closure area 201 , the overall height of the closure clip will be shortened, and the closure clip can be easily detached from the lumen 1 , while the remaining closure clips are still fixed in the lumen 1 by friction.

[0051] The function of the plug plate 6 is, on the one hand, to keep the closing clamp in the lumen 1 in an open state, and on the other hand, it also plays a guiding and guiding role. By inserting the plug plate 6 in the slot 5, the movement of the closing clamp can be limited and guided to prevent it from shaking.

[0052] Embodiment 2:

[0053] See also Figure 2 , Figure 6 , Figure 7 and Figure 8 On the basis of the first embodiment, in this embodiment, a fixed handle 11 is fixedly installed at the rear end of the cavity tube 1, and a movable handle 12 is movably installed, wherein a driving mechanism is provided between the movable handle 12 and the push block 8, and when the movable handle 12 is pulled, the push block 8 can be driven forward by the driving mechanism;

[0054] In this embodiment, the driving mechanism includes a rotating rod 24, a mounting box 15, a moving plate 16, a side support spring 17, a pushing tooth 18, an engaging tooth 14 and a push plate 13. Specifically, Figure 7 and Figure 8 As shown, the top of the movable handle 12 is rotatably arranged in the installation box 15 through the rotating rod 24, and the installation box 15 is fixedly installed at the bottom of the cavity tube 1. A movable plate 16 is movably arranged in the installation box 15, and the movable plate 16 is supported by the side support spring 17. The movable handle 12 can be pulled to push the movable plate 16, and the side support spring 17 will be compressed. After the movable handle 12 is released, the movable plate 16 will be reset under the restoring force of the side support spring 17, and the movable handle 12 can also be reset;

[0055] like Figure 7 As shown, a stopper 25 is also fixedly installed in the installation box 15, located on the right side of the movable handle 12, for blocking the movable handle 12 and limiting its clockwise rotation;

[0056] Therefore, in this embodiment, when the movable handle 12 is pulled, the movable plate 16 will move to the left and compress the side support spring 17. After the movable handle 12 is released, the movable plate 16 will move to the right and return to its original position.

[0057] like Figure 8 As shown, a push tooth 18 is movably and telescopically arranged at the top of the movable plate 16, the two sides of the push tooth 18 are vertical planes, and the top is an inclined surface, the push tooth 18 is movably clamped between adjacent bite teeth 14, the bite teeth 14 are evenly installed at the bottom of the push plate 13, and the shape is coupled with the push tooth 18, the push plate 13 is fixedly installed on the side of the push block 8 facing away from the closing clamp, and the end extends to the outside of the cavity 1;

[0058] Thus, when the moving plate 16 moves to the left, the pushing teeth 18 will push the push plate 13 to move a distance of the engaging teeth 14, thereby pushing the push block 8 to move; when the moving plate 16 moves to the right, the pushing teeth 18 will automatically retract and will not affect the position of the push plate 13;

[0059] In this embodiment, the push block 8 is positioned in the cavity 1 by friction (the push block 8 can be made of rubber material), and there is a large friction between it and the inner wall of the cavity 1. Every time the movable handle 12 is turned, the push tooth 18 can push the push plate 13 and the push block 8 forward a certain distance.

[0060] In the present invention, if Figure 8 As shown, the pushing tooth 18 is fixedly mounted on a pressure plate 19, and the pressure plate 19 is movably arranged in an inner cavity 20 opened inside the movable plate 16, and the bottom is supported by a vertical support spring 21, so that when the pushing tooth 18 moves to the left, it will push the engaging tooth 14 to move, and when the pushing tooth 18 moves to the right, it will compress the vertical support spring 21 through the pressure plate 19.

[0061] In this embodiment, the movement of the push block 8 can be controlled not only by pulling the movable handle 12, but also by directly pushing the push plate 13 from the outside, and the operation methods are diversified.

[0062] Furthermore, a scale may be provided on the outer wall of the push plate 13 , through which the displacement distance of the push plate 13 may be intuitively and accurately known, thereby controlling the displacement distance of the push block 8 .

[0063] Embodiment three:

[0064] See also Figure 7 and Figure 8 On the basis of the first and second embodiments, in this embodiment, a pull rod 22 is fixedly mounted on the bottom of the pressing plate 19, the bottom end of the pull rod 22 passes through the movable plate 16 and extends to the outside of the mounting box 15, and a rod groove 23 for moving the pull rod 22 left and right is provided at the bottom of the mounting box 15;

[0065] By pulling down the pressing plate 19 through the pull rod 22, the pushing tooth 18 can be moved downward to disengage from the engaging tooth 14, thereby facilitating the backward movement and reset of the pushing plate 13 and the pushing block 8;

[0066] When all the closing clips in the lumen 1 are used up, the push plate 13 and the push block 8 can be controlled to move back and reset, and new closing clips can be reloaded. Specifically, when reloading, the closing clips can be inserted from the front end of the lumen 1.

[0067] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vascular suture device, comprising a lumen (1) with an opening at the front end and a closed rear end, characterized in that: Also includes: A push block (8) movably disposed in the cavity tube (1); A plurality of closing clips are arranged in sequence along the axial direction of the lumen (1) and filled in the lumen (1), and can be pushed out by a push block (8); The closing clamp is composed of two arc-shaped plates (2) arranged opposite to each other, a closing area (201) is formed between the front ends of the two arc-shaped plates (2), and the rear ends are connected to the fixed plate (3) via an elastic plate (4); The two elastic plates (4) are preset to bend inwardly, and when the closing clip is located in the cavity (1), the two elastic plates (4) are stretched apart, and when the closing clip is pushed out of the cavity (1), the two elastic plates (4) are bent inwardly under the action of their own elastic force, so that the closing area (201) is closed; The fixing plate (3) is provided with a slot (5) transversely, and a plug plate (6) is movably inserted into the slot (5). The plug plate (6) is fixedly installed in the cavity tube (1) and has a curved surface (10) formed at the front end. A fixed handle (11) is fixedly mounted on the rear end of the cavity tube (1), and a movable handle (12) is movably mounted. A driving mechanism is provided between the movable handle (12) and the push block (8); when the movable handle (12) is pulled, the push block (8) can be driven forward by the driving mechanism; Pushing columns (7) are fixedly mounted on the inner walls at the rear ends of the two arc-shaped plates (2). When the inserting plate (6) is inserted into the slot (5), the two pushing columns (7) are pushed and spread apart by the inserting plate (6).

2. A vascular suture device according to claim 1, characterized in that: The push block (8) is provided with a through slot (9) extending transversely therethrough for allowing the insert plate (6) to pass through.

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

4. A vascular suture device according to claim 1, characterized in that: The driving mechanism comprises a rotating rod (24), a mounting box (15), a movable plate (16), a side support spring (17), a pushing tooth (18), an engaging tooth (14) and a pushing plate (13); the top of the movable handle (12) is rotatably arranged in the mounting box (15) via the rotating rod (24); and the mounting box (15) is fixedly mounted on the bottom of the cavity tube (1); A movable plate (16) is movably arranged in the installation box (15) so as to move left and right. The movable plate (16) is supported by a side support spring (17). The movable handle (12) can be pulled to push the movable plate (16); The top of the movable plate (16) is movably and telescopically provided with a pushing tooth (18), the two sides of the pushing tooth (18) are vertical planes, and the top is an inclined surface. The pushing tooth (18) is movably clamped between adjacent engaging teeth (14), and the engaging teeth (14) are evenly installed at the bottom of the push plate (13), and the shape is coupled with the pushing tooth (18). The push plate (13) is fixedly installed on the side of the push block (8) facing away from the closing clamp, and the end extends to the outside of the cavity (1).

5. A vascular suture device according to claim 4, characterized in that: A blocking rod (25) is also fixedly mounted in the mounting box (15) for blocking the movable handle (12).

6. A vascular suture device according to claim 4, characterized in that: The pushing teeth (18) are fixedly mounted on a pressure plate (19); the pressure plate (19) is movably arranged in an inner cavity (20) opened inside the movable plate (16), and the bottom is supported by a vertical support spring (21).

7. A vascular suture device according to claim 6, characterized in that: A pull rod (22) is also fixedly mounted on the bottom of the pressure plate (19), the bottom end of the pull rod (22) passes through the movable plate (16) and extends to the outside of the installation box (15), and a rod groove (23) is provided at the bottom of the installation box (15) for allowing the pull rod (22) to move left and right.

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