CN219089434U

CN219089434U - Vascular suturing device

Info

Publication number: CN219089434U
Application number: CN202222588717.5U
Authority: CN
Inventors: 胡瑶; 罗建方; 彭晴; 陈叶祎; 曹镇财; 张效凯
Original assignee: APT MEDICAL Inc
Current assignee: APT MEDICAL Inc
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2023-05-30
Anticipated expiration: 2032-09-28

Abstract

The application provides a vascular suturing device, which comprises a fixed seat and a plurality of connecting pipes, wherein the fixed seat is connected with the multi-cavity pipes; the sleeve seats are respectively and movably connected with the fixed seat and the operating rod, and the sleeve seats are provided with at least one clamping groove for accommodating the sleeve; the multi-cavity tube is internally provided with a needle cavity for accommodating at least one pair of needles and a central cavity for accommodating the operating rod; the operating rod pushes and pulls the sleeve seat to be unfolded or closed relative to the fixed seat, when the blood vessel is sutured, the sleeve seat is unfolded in the blood vessel, the needle in the needle cavity penetrates through the wall of the blood vessel and penetrates into the corresponding sleeve, each needle is pulled out, and the suture on each needle is used for suturing the puncture. The vascular suturing device is simple in structure, stable, reliable, simple and convenient to operate, and puncture openings with different sizes can be sutured.

Description

Vascular suturing device

Technical Field

The application relates to the technical field of medical instruments, in particular to a vascular suturing device.

Background

Vascular interventional therapy has become the first choice for some diseases due to the advantages of small trauma, accuracy, high efficiency, few complications and the like. Vascular interventions are generally performed by puncturing blood vessels to implant relevant instruments, and effective closure and minimally invasive procedures of vascular punctures are clinical problems to be solved.

Complications such as bleeding, hematoma and the like are easy to occur by adopting the traditional hemostasis method, and patients need to lie in bed for a long time. The puncture can be sutured by adopting the vascular suturing device, the existing vascular suturing device is difficult to suture a larger puncture, two or more suturing devices are often needed for suturing the larger puncture, the operation is complex, the requirement on the operation experience of doctors is high, and the treatment cost is high.

Disclosure of Invention

In view of this, the present application aims to provide a vascular suturing device, which can suture a relatively large puncture, and has a simple structure and convenient operation.

In view of the above, the present application provides a vascular suturing device comprising:

the fixed seat is connected with the multi-cavity tube;

the sleeve seats are respectively and movably connected with the fixed seat and the operating rod, and at least one sleeve is arranged on the sleeve seats;

the multi-cavity tube is internally provided with a needle cavity for accommodating at least one pair of needles and a central cavity for accommodating the operating rod;

the operating rod pushes and pulls the sleeve seat to be unfolded or closed relative to the fixed seat, when the blood vessel is sutured, the sleeve seat is unfolded in the blood vessel, the needle in the needle cavity penetrates through the wall of the blood vessel and penetrates into the corresponding sleeve, each needle is pulled out, and the suture on each needle is used for suturing the puncture.

Optionally, the sleeve seat is provided with an abutment surface, which is in contact with the vessel wall when suturing in the deployed state.

Optionally, a clamping groove for accommodating the sleeve is formed in the sleeve seat, and a guiding inclined plane is formed in the periphery of the clamping groove.

Optionally, when the number of the sleeve seats is four, each sleeve seat is symmetrically distributed in the circumferential direction.

Optionally, the sleeve seat is provided with a first connecting part and a second connecting part, the first connecting part is movably connected with the matching connecting part of the fixing seat, and the second connecting part is movably connected with the operating rod; the cooperation connecting portion is equipped with spacing portion, the sleeve seat is 0-45 degrees for the rotation angle scope of fixing base.

Optionally, a first limiting part is arranged on the first connecting part; the cooperation connecting portion is equipped with first spacing portion complex second spacing portion and be used for with the third spacing portion of first connecting portion card support.

Optionally, the first limiting part is a stop block, and the second limiting part and the third limiting part are inclined planes.

Optionally, the rotation angle range of the sleeve seat relative to the fixed seat is 0-90 degrees.

Optionally, the outer edges of the sleeve seats are semi-arc-shaped, and the two sleeve seats in the closed state are similar to the outer diameter of the fixed seat.

Optionally, any two sleeves on the sleeve seat are connected through a bridging wire, the fixing seat is connected with a sheath pipe, and a wire slot for accommodating the bridging wire is formed in the sheath pipe.

Optionally, each pair of needles comprises a solid needle and a hollow needle, the hollow needle comprises a hypotube and a solid steel needle in the hypotube, the distal end of the hypotube is provided with a needle head connected with a suture, the solid steel needle can push the needle head to act, and the other end of the suture is preformed to be wound on the solid needle; after pushing the needle to butt the solid needle with one sleeve and the needle head with the suture with the other sleeve, pulling out the solid needle and the hollow needle, wherein the solid needle drives the sleeve, the bridging wire, the other sleeve and the needle head with the suture connected together to penetrate through the vascular wall, and the suture penetrates through the prefabricated knot to suture the puncture.

From the above, it can be seen that the vascular suturing device provided by the application comprises a fixed seat and at least two sleeve seats, wherein the sleeve seats are respectively and movably connected with the fixed seat and an operating rod; the sleeve seat is provided with at least one clamping groove for accommodating the sleeve; the sleeve seat is connected with a multi-cavity tube, and a needle cavity for accommodating at least one pair of needles and a central cavity for accommodating the operating rod are arranged in the multi-cavity tube. The operation rod is operated, the two sleeve seats can be unfolded or closed relative to the fixed seat, when the blood vessel is sutured, the sleeve seats are unfolded in the blood vessel, the needles in the needle cavity penetrate through the wall of the blood vessel and penetrate into the corresponding sleeves, the needles are pulled out, and the suture lines on the needles suture the puncture openings. The vascular suturing device is simple in structure, stable, reliable, simple and convenient to operate, puncture openings of different sizes can be sutured, and multi-needle suturing can be achieved.

Drawings

In order to more clearly illustrate the technical solutions of the present application or related art, the drawings that are required to be used in the description of the embodiments or related art will be briefly described below, and it is apparent that the drawings in the following description are only embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort to those of ordinary skill in the art.

FIG. 1 is a schematic view of a vascular suturing device according to an embodiment of the present application;

FIGS. 2A-2C are schematic structural views of a sleeve mount according to an embodiment of the present application;

FIG. 3 is a schematic view of a vascular suturing device of an embodiment of the present application in a deployed state;

FIG. 4 is a schematic view of a vascular suturing device according to another embodiment of the present application in a deployed state;

fig. 5 is a schematic structural diagram of a fixing base according to an embodiment of the present application;

fig. 6 is a schematic structural view of an operation lever according to an embodiment of the present application.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings.

It should be noted that unless otherwise defined, technical or scientific terms used in the embodiments of the present application should be given the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "first," "second," and the like, as used in embodiments of the present application, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

In the related art, a vascular suture device can be used for suturing a vascular puncture, a pair of needle vascular suture devices are arranged and are suitable for suturing a puncture of 5F-8F, two or more suture devices are needed for suturing a larger puncture, each suture device is needed to be respectively arranged in a specific direction during operation, so that the angle after suturing is within a certain range, the influence on the suture effect caused by too short or too large angle between two needles is avoided, the operation is complicated, and the requirement on operation experience is higher. For sewing up great puncture, some vascular suturing device sets up two pairs of needles, can once operate and realize two and sew up, and this kind of vascular suturing device is equipped with two and connects the guide base that have concave arc, and when sewing up, the degree of laminating between guide base and the vascular wall that connects of this kind of shape is not high, influences the stability of sewing up, and when needle and guide base butt joint, the needle applys impact force to the guide base that connects, influences suturing device's reliability.

In view of this, the embodiment of the application provides a vascular suturing device, including fixing base and two at least sleeve seats, two at least sleeve seats respectively with fixing base, action bars swing joint, through control action bars, two sleeve seats can be opened or closed for the fixing base. The fixing seat is connected with the multi-cavity tube, at least one pair of needles are arranged in the multi-cavity tube, at least two sleeves are arranged on the sleeve seat, the sleeve seat is in an unfolding state when being sewn, the sleeve seat is in butt joint with the corresponding sleeve by pushing the needles, the needles are pulled out, and the suture on the needles is used for sewing the puncture. Through setting up one or more pairs of needles, the puncture mouth of equidimension is sewed up to accessible once operation, and suturing device simple structure, easy and simple to handle.

The vascular suturing device of the present application will be explained in detail with reference to the drawings and examples.

As shown in fig. 1-3, an embodiment of the present application provides a vascular suturing device adapted for dual needle suturing, comprising:

a fixing base 10 connected with the multi-lumen tube 30;

at least two sleeve seats 20, wherein the sleeve seats 20 are respectively and movably connected with the fixed seat 10 and the operating rod 40, and two clamping grooves 24 for accommodating the sleeve are formed in the sleeve seats 20;

a multi-lumen tube 30 having a needle lumen 31 for accommodating two pairs of needles 50 and a central lumen for accommodating an operation lever 40 therein;

when the operation rod 40 pushes and pulls the sleeve seat 20 to be unfolded or closed relative to the fixed seat 10 and suture the blood vessel, the sleeve seat 20 is unfolded in the blood vessel, the needle 50 in the needle cavity penetrates through the wall of the blood vessel and penetrates into the corresponding sleeve, each needle is pulled out, and the suture on each needle is used for suturing the puncture.

The sleeve seats 20 provided in this embodiment are symmetrically distributed, and when four sleeve seats 20 are deployed, they are cross-shaped, and when six or eight sleeve seats are deployed, they are petal-shaped.

The vascular suturing device provided by the embodiment comprises a fixed seat 10 and at least two sleeve seats 20, wherein the distal end of the fixed seat 10 is connected with a sheath tube 60, the proximal end of the fixed seat 10 is connected with a multi-cavity tube 30 through a connecting rod 12, the at least two sleeve seats 20 are oppositely arranged on the fixed seat 10, the sleeve seats 20 are respectively and movably connected with the fixed seat 10 and an operating rod 40, the sleeve seats 20 can rotate relative to the fixed seat 10, and the sleeve seats 20 can be driven to rotate relative to the fixed seat 10 when the operating rod 40 is operated.

The sleeve seat 20 is provided with at least one clamping groove 24, and the clamping groove 24 is used for clamping a sleeve 25. The multi-lumen tube 30 is provided with a needle lumen 31 and a central lumen, the operating lever 40 is accommodated in the central lumen, the operating lever 40 is pushed and pulled, the operating lever 40 can move in the central lumen, at least one pair of needles 50 is accommodated in the needle lumen 31, the needles 50 are pushed and pulled, and the needles 50 can move in the needle lumen 31. In suturing, the sleeve holder 20 is deployed in a blood vessel, at least one pair of needles 50 is pushed out, each needle 50 is butted with the corresponding sleeve 25 through the wall of the blood vessel, and thereafter, each needle 50 is pulled out, and the puncture is sutured with a suture thread on the needle 50. The vascular suturing device of the embodiment has the advantages of simple structure and simple operation, one or more pairs of needles can be configured for puncture openings with different sizes, and the puncture openings can be sutured only by one operation.

In some embodiments, the sleeve seat 20 is provided with an abutment surface 23, and when suturing in the unfolded state, the abutment surface 23 contacts the blood vessel wall 80, so that the adhesion degree of the suturing device and the blood vessel wall 80 can be improved, and the suturing stability can be improved.

Referring to fig. 2A-2C, 3 and 5, two sleeve holders 20 are symmetrically disposed on two sides of the connecting rod 12, the outer edges of the sleeve holders 20 are semi-arc-shaped, the operating rod 40 is pushed to the distal end, the two sleeve holders 20 rotate outwards relative to the fixing base 10, the two sleeve holders 20 are unfolded, and the suture of the puncture opening can be performed in the unfolded state. The operating rod 40 is pulled to the proximal end, the two sleeve seats 20 rotate inwards relative to the fixed seat 10, the joint surface 27 on the inner side of the sleeve seats 20 is jointed with the connecting rod 12, the two sleeve seats 20 are closed, the two sleeve seats 20 in the closed state are close to the outer diameter of the fixed seat 10, the outer diameter of the multi-cavity tube is close to the outer diameter of the fixed seat 10 after being coated with the outer tube, and when the two sleeve seats are closed, the sleeve seats 20, the fixed seat 10 and the multi-cavity tube coated with the outer tube are in a cylindrical shape.

In some embodiments, the sleeve holder 20 has a first connecting portion 21 and a second connecting portion 22, the first connecting portion 21 is movably connected with the mating connecting portion 11 of the fixing base 10, the sleeve holder 20 can rotate relative to the fixing base 10, the second connecting portion 22 is movably connected with the operating lever 40, and the sleeve holder 20 can be driven to rotate relative to the fixing base 10 when the operating lever 40 is operated.

In some modes, the first connecting portion 21 of the sleeve seat 20 is two opposite supporting legs 210, the two supporting legs 210 are provided with connecting holes 211, and one supporting leg is provided with a first limiting portion 212; the matching connection part 11 of the fixing base 10 is provided with a matching connection hole 111, the matching connection hole 111 is provided with a second limiting part 112 matched with the first limiting part 212, and the matching connection part 11 is also provided with a third limiting part 113 used for being clamped and abutted with the supporting leg 210. The connecting holes of the two supporting legs 210 are connected with the matching connecting holes 111 of the matching connecting part 11 through connecting pieces, the two supporting legs 210 can rotate relative to the fixing seat 10, and when the two supporting legs 210 are abutted with the third limiting part 113 when the two supporting legs 210 rotate until the first limiting part 212 is abutted with the second limiting part 112.

In some modes, the first limiting portion 212 is a stop, the second limiting portion 112 and the third limiting portion 113 are inclined planes, and by setting the angle of the inclined planes, the rotation angle range of the sleeve seat 20 relative to the fixing seat 10 can be adjusted, and the limiting structure is stable and reliable. Optionally, the rotation angle range of the sleeve seat 20 relative to the fixing seat 10 is 0-45 degrees, so that the operation rod 40 can conveniently operate the sleeve seat 20 to open or close, and the puncture can be sutured in the open state.

The second connecting portion 22 of the sleeve seat 20 is a connecting hole 220 arranged on the inner side of the bonding surface 27, the end portion of the operating rod 40 is provided with a matching connecting hole, the connecting hole 220 is connected with the matching connecting hole through a connecting piece, and the sleeve seat 20 can be driven to be unfolded or closed by pushing or pulling the operating rod 40. Alternatively, the aperture of the connection hole 220 is 0.5-2mm, and the aperture of the mating connection hole is 0.5-2mm.

As shown in fig. 2A-2C, in some embodiments, a guiding inclined plane 26 is disposed at the periphery of the clamping groove 24, when the needle 50 is docked with the sleeve 25, the needle is guided by the guiding inclined plane 26 to be inserted into the clamping groove 24, and in the case that the guiding inclined plane is disposed, the needle is allowed to slide into the clamping groove 24 within the range of the guiding inclined plane, so that the needle can be accurately and smoothly docked with the sleeve 25, and the impact force when the needle is in contact with the sleeve seat can be reduced by utilizing the buffer effect of the guiding inclined plane, so as to improve the reliability of the suturing device.

In other embodiments, as shown in fig. 4, the sleeve holder 200 is a pillar, a slot 204 for accommodating the sleeve is provided on the pillar, and a guiding inclined plane 206 is provided on the periphery of the slot 204. The first connecting portion of the pillar is movably connected with the matching connecting portion of the fixing seat 100, the second connecting portion of the pillar is movably connected with the operating rod 40, and a clamping groove 204 for clamping the sleeve is formed at the end of the pillar. Pushing the operating lever 40, the sleeve seat 200 rotates relative to the fixing seat 100, and when the first surface 207 of the strut abuts against the proximal end plane of the fixing seat 100, the sleeve seat 200 stops rotating, and the sleeve seat 200 is in a unfolded state; when the operating lever 40 is pulled, the sleeve seat 200 rotates relative to the fixed seat 100, and when the second surface 203 of the strut is engaged with the connecting rod 12, the sleeve seat 200 stops rotating, and the sleeve seat 200 is in a closed state. Optionally, the rotation angle of the sleeve mount 200 relative to the fixed mount 100 ranges from 0 to 90 degrees.

As shown in fig. 1, 3 and 4, in some embodiments, a needle cavity 31 is provided in the multi-cavity tube 30, at least one pair of needles 50 is accommodated in the needle cavity 31, the needles are pushed to move along the needle cavity 31, and extend through a needle outlet 71 (the needle outlet 71 is positioned outside and inside the wall of a blood vessel when suturing) of the outer tube 70, and is in butt joint with the sleeve 25 on the sleeve seat 20, and a wire cavity for accommodating a suture is further provided in the multi-cavity tube 30. The needle 50 comprises a solid needle 51 and a hollow needle 52, two sleeves 25 on the sleeve seat 20 are connected through a bridging line 28, the hollow needle 52 comprises a hypotube and a solid steel needle in the hypotube, the distal end of the hypotube is provided with a needle head connected with a suture, the solid steel needle can push the needle head to act, and the other end of the suture is preformed to be wound on the solid needle 51. After the solid needle 51 is abutted with one sleeve and the needle head with the suture is abutted with the other sleeve by pushing the needle, the solid needle 51 is pulled out, the sleeve, the bridging wire, the other sleeve and the needle head with the suture which are connected together are driven by the solid needle 51 to pass through the vascular wall, the suture is taken out of the body, the suture passes through the prefabricated knot, and the knot is tightened so as to suture the puncture.

Alternatively, the bridge wire 28 may connect any two sleeves on two sleeve holders, for example, two sleeves on the same sleeve holder 20, or one sleeve on each of the two sleeve holders 20. The solid needle 51 and the hollow needle 52 are made of a metal material, an outer diameter of 0.3-1mm, and a diameter of 0.1-1mm, and the suture may be made of an absorbable material such as PLGA, PLG, PGA, or a non-absorbable material such as polypropylene, nylon, or the like.

In some embodiments, a suitable vascular suturing device can be selected according to the size of the puncture, for example, a suturing device with two pairs of needles 50 can be arranged to suture the puncture with the size of 8F-18F, a suturing device with three pairs of needles 50 can be arranged to suture the puncture with the size of more than 18F, and the vascular suturing device can be operated for suturing multiple needles at one time, and is simple and convenient to operate and flexible to configure. Alternatively, a pair of needles may correspond to two sleeves on the same sleeve mount; the pair of needles can also respectively correspond to two sleeves on two sleeve seats, wherein the solid needle corresponds to the sleeve on one sleeve seat, and the hollow needle corresponds to the sleeve of the other sleeve seat; the number of the sleeve seats, the number of the sleeves on the sleeve seats and the setting positions of the needles can be configured according to the size of the puncture opening, and the specific configuration mode is not limited.

In some embodiments, the lever 40 may be connected to an operating handle, or both may be integrally formed, and the sleeve mount 20 may be opened or closed by pushing or pulling the operating handle. As shown in fig. 6, the operation lever 40 includes a main body lever 41 and a connection lever 42, the number of the connection levers 42 is identical to that of the sleeve holders, and one end of the main body lever 41 and each connection lever 42 may be movably connected or fixedly connected, or integrally formed. The body rod 41 is provided in the multi-lumen tube 30 and is movable in the multi-lumen tube 30 in the axial direction of the multi-lumen tube. The other end of the main body rod 41 is connected with an operation handle, and the main body rod 41 can be moved by rotating or pushing and pulling the operation handle, so that the sleeve seat is driven to be unfolded or closed by the connecting rod.

The sheath 60 is provided with a wire slot 61 for receiving the bridle wire 28, the bridle wire 28 being secured in the wire slot 61 when the sleeve mount 20 is closed, and the bridle wire 28 being removed from the wire slot 61 when the suturing device is withdrawn.

Alternatively, the sleeve holder 20 is made of a plastic material, the height of the sleeve holder being 2-10mm, the outer diameter of the two sleeve holders being 2-8mm in the closed state, the distance between the two sleeves 25 being 1-25mm, the sleeves being made of a metal material, the bridge wire 28 being of an absorbable or non-absorbable material. The operation rod 40 may be made of plastic or metal, the fixing base 10 and the multi-cavity tube 30 may be connected by glue or interference fit, or the two may be integrally formed, and the specific mode is not limited.

The application method of the vascular suturing device comprises the steps that after a guide wire enters a vascular cavity 81, the proximal end of the guide wire penetrates into the distal end of a sheath tube 60, the guide wire penetrates out of a guide wire port at the proximal end of the sheath tube 60, the sheath tube is pushed into the vascular cavity 81, the guide wire is withdrawn to continue pushing the sheath tube until blood continuously flows out of a blood flow marking cavity in a multi-cavity tube 30, the fixed seat and the sleeve seat of the vascular suturing device enter the blood vessel, and the pushing of the sheath tube is stopped. Pushing the operating rod 40 to expand the sleeve seat 20, pulling the suturing device outwards, enabling the abutting surface 23 of the sleeve seat 20 to abut against the blood vessel wall 80, pushing at least one pair of needles 50, moving each needle along the needle cavity 31 towards the blood vessel wall 80, extending out through the needle outlet 71 on the outer tube 70 (the outer tube 70 is sleeved outside the multi-cavity tube 30), abutting against the sleeve corresponding to the position on the sleeve seat 20, pulling out the needles after abutting against, pulling out the solid needles and the sleeve abutting against the solid needles, the bridging wire, the needle head with the suture and the sleeve abutting against the solid needles through knots prefabricated on the solid needles, and tightening the suture to complete suturing. The vascular suturing device provided by the embodiment of the application can suture puncture openings of different sizes, and is simple in structure, stable, reliable and easy and convenient to operate.

Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the application (including the claims) is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the present application, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of brevity.

Additionally, for simplicity of illustration and discussion, and so as not to obscure the embodiments of the present application, further, the devices may be shown in block diagram form in order to avoid obscuring the embodiments of the present application, and this also accounts for the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform on which the embodiments of the present application are to be implemented (i.e., such specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the application, it should be apparent to one skilled in the art that embodiments of the application can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative in nature and not as restrictive.

While the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of those embodiments will be apparent to those skilled in the art in light of the foregoing description.

The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Accordingly, any omissions, modifications, equivalents, improvements and/or the like which are within the spirit and principles of the embodiments are intended to be included within the scope of the present application.

Claims

1. A vascular suturing device, comprising:

the fixed seat is connected with the multi-cavity tube;

2. The vascular suturing device of claim 1, wherein the sleeve mount is provided with an abutment surface that contacts the vessel wall when suturing in the deployed state.

3. The vascular suturing device of claim 1, wherein the sleeve seat is provided with a clamping groove for accommodating the sleeve, and a guiding inclined plane is arranged on the periphery of the clamping groove.

4. The vascular suturing device of claim 1, wherein when there are four sleeve seats, each sleeve seat is circumferentially symmetrically distributed.

5. The vascular suturing device of claim 1, wherein the sleeve mount has a first connection portion movably coupled to the mating connection portion of the anchor mount and a second connection portion movably coupled to the lever; the cooperation connecting portion is provided with a limiting portion.

6. The vascular suturing device of claim 5, wherein the first connector has a first stop; the cooperation connecting portion is equipped with first spacing portion complex second spacing portion and be used for with the third spacing portion of first connecting portion card support.

7. The vascular suturing device of claim 6, wherein the first stop is a stop and the second and third stops are beveled.

8. The vascular suturing device of claim 1, wherein the sleeve mount has a semi-arcuate outer periphery, and wherein the sleeve mounts have a similar outer diameter in the closed position.

9. The vascular suturing device of claim 1, wherein any two sleeves on the sleeve seat are connected by a bridging wire, the fixed seat is connected with a sheath, and a wire slot for accommodating the bridging wire is arranged on the sheath.

10. The vascular suturing device of claim 9, wherein each pair of needles comprises a solid needle and a hollow needle, the hollow needle comprises a hypotube and a solid steel needle in the hypotube, the distal end of the hypotube is provided with a needle head connected with a suture, the solid steel needle can push the needle head to act, and the other end of the suture is preformed to be wound on the solid needle; after pushing the needle to butt the solid needle with one sleeve and the needle head with the suture with the other sleeve, pulling out the solid needle and the hollow needle, wherein the solid needle drives the sleeve, the bridging wire, the other sleeve and the needle head with the suture connected together to penetrate through the vascular wall, and the suture penetrates through the prefabricated knot to suture the puncture.