Blood vessel plugging hemostat

Abstract

The utility model relates to the technical field of blood vessel repair, and discloses a blood vessel plugging hemostat which comprises a plugging piece. The wire rod sequentially penetrates through the plugging piece, the plugging disc and the plugging piece to form a loop, and a locking knot is arranged above the direction, away from the plugging disc, of the plugging piece; the plugging disc can be elastically deformed and is connected with the plugging sheet through a wire rod; the other end of the wire rod is pulled in the direction away from the plugging disc, and the locking knot slides in the direction close to the plugging disc so that the plugging piece can be compressed and folded. The plugging disc can be attached to the inner wall of a blood vessel to effectively plug and stop bleeding, and the plugging piece can be tightly attached to the outer wall of the blood vessel to conduct double plugging and bleeding stopping on the inside and outside of a blood vessel wound. Meanwhile, the plugging disc can be elastically deformed, the plugging disc in the folded state is small in size, blood vessel stimulation can be reduced in blood vessels, and the large-area plugging disc can cope with the situation that the wound area is larger after expansion and release.

Description

Technical Field

[0001] The utility model relates to the technical field of blood vessel repair, and particularly relates to a blood vessel plugging hemostat. Background Art

[0002] Due to its minimally invasive nature and high safety, interventional therapy has made remarkable progress in the field of cardiovascular disease treatment and has become an important direction in modern medicine. This treatment method enters the blood vessels through small incisions or punctures and uses catheters and interventional instruments for precise treatment, reducing the trauma and recovery time of traditional surgeries. At the beginning of interventional therapy, a sheath tube needs to be punctured through the skin into the femoral artery or radial artery, and then catheters and other interventional instruments are introduced through this sheath tube. After the operation, the blood vessel puncture site must be effectively blocked to prevent bleeding and ensure the safe recovery of the patient after the operation.

[0003] Currently, the commonly used blocking method in clinical practice is the arterial compression method, which requires doctors or nurses to compress the puncture site by hand for up to 25 minutes, and after hemostasis, a bandage or sandbag is still needed to continuously compress the bleeding site, and the patient needs to remain stationary for 8 to 12 hours. This not only takes time and effort for medical staff, but also undoubtedly brings great inconvenience and discomfort to patients.

[0004] In addition to the arterial compression method, another method is to use absorbable suture threads or vascular closure devices to achieve hemostasis.

[0005] Although absorbable suture threads can be effectively applied to the occlusion of large blood vessel wounds, in clinical practice, multiple instruments (such as proglide sutures) may need to be used in combination, which may cause secondary damage to the blood vessels, and the operation process is complex, requiring a high level of technical skill from doctors. This not only increases the difficulty of the operation, but also prolongs the operation time, increases the surgical risk, and increases the risk and discomfort of the patient.

[0006] The design of vascular closure devices usually includes a plugging member for adhering to the blood vessel puncture opening. Although the hemostasis principles of existing plugging members are different, they are all only applicable to the hemostasis of arterial puncture points in the range of 5 - 8F, which is much narrower in application range compared to using absorbable suture threads. At the same time, it still has the characteristic of complex operation and is difficult to precisely control. Summary of the Utility Model

[0007] The utility model provides a blood vessel plugging hemostat to solve the deficiencies of the prior art. The utility model aims to solve at least one of the technical problems in the prior art to a certain extent.

[0008] To achieve the above object, the utility model provides the following technical solutions:

[0009] A blood vessel plugging hemostat, comprising:

[0010] Blocking piece;

[0011] A sealing disk, wherein the sealing disk is elastically deformable;

[0012] A wire having a first end and a second end, wherein the first end of the wire passes through the blocking piece and the blocking disk in sequence, and then passes through the blocking piece again to form an open loop; wherein,

[0013] A locking knot is formed at the first end of the wire above the blocking piece in a direction away from the blocking disk, and the locking knot closes the open loop;

[0014] The second end of the wire is pulled from a direction away from the occluding disk, and the locking knot slides toward a direction close to the occluding disk to compress and fold the occluding sheet.

[0015] Preferably, the occluding disk comprises a support beam, and the support beam is provided with a catheter insertion port for inserting a catheter.

[0016] Preferably, the catheter socket is a self-resetting cover with a pre-cut groove. When the catheter is inserted into the catheter socket, the self-resetting cover is pushed open, and when the catheter is pulled out of the catheter socket, the self-resetting cover is reset.

[0017] Preferably, the pre-cut groove and the self-resetting cover are U-shaped, and the opening direction of the self-resetting cover faces the blocking piece.

[0018] Preferably, the catheter is inserted into the catheter insertion port from a side of the blocking disk facing away from the blocking piece, and the opening direction of the self-resetting cover is located on the same side as the blocking piece.

[0019] Preferably, the support beam is provided with a threading hole or a threading ring for passing the wire.

[0020] Preferably, the blocking plate comprises a first frame, two ends of the first frame are respectively connected to two ends of the support beam, and the first frame and the support beam form a first plate surface;

[0021] The second frame has two ends connected to the two ends of the support beam respectively, the first frame and the second frame are located on both sides of the support beam respectively, and the second frame and the support beam form a second disk surface.

[0022] Preferably, the first frame and the second frame are foldable. The first frame and the second frame are folded toward the center of the blocking disk, the catheter passes through the first disk surface and the second disk surface and is inserted into the catheter socket. The first frame and the second frame are clamped by the catheter, and the blocking disk is in a folded state.

[0023] Preferably, the first frame and the second frame have shape memory functions. When the catheter is withdrawn from the catheter socket, the first frame and the second frame unfold, and the occlusion disc is in an unfolded state suitable for occluding the vascular wound.

[0024] Preferably, when the occlusion disc is in an unfolded state suitable for occluding the wound, the side of the occlusion disc adjacent to the occlusion piece is an arc surface to be suitable for fitting with the vascular intima.

[0025] Preferably, the occlusion piece has biocompatibility and its volume increases after absorbing liquid.

[0026] Preferably, the occlusion piece is a corrugated cotton sheet. The locking knot slides towards the direction close to the occlusion disc, and the occlusion piece is compressed and folded in a Z-shaped folding shape until the occlusion piece is closely attached to the vascular adventitia.

[0027] Preferably, the locking knot is a slip knot formed by winding and braiding a double-strand rope.

[0028] Preferably, the vascular occlusion hemostat further includes a flow blocking membrane, and the flow blocking membrane wraps the occlusion disc.

[0029] Preferably, the axis of the wire coincides with the axis of the catheter.

[0030] Through the above technical solutions, the occlusion disc in the present utility model can fit with the inner wall of the blood vessel to effectively occlude and stop bleeding, while the occlusion piece can closely adhere to the outer wall of the blood vessel to perform double occlusion and hemostasis on the inside and outside of the blood vessel wound.

[0031] Meanwhile, the occlusion disc can be elastically deformed and still remain in a folded state when being transported into the blood vessel. The folded occlusion disc is small in volume and can reduce blood vessel irritation in the blood vessel. The occlusion disc in the folded state can be lifted to closely adhere to the inner wall of the blood vessel and then inflated and released. The hemostasis effect of the large-area occlusion disc is better and can cope with the situation of a larger wound area.

[0032] In addition, the catheter and the guide wire in the catheter are always coaxial with the wire during the intervention process, and the whole process of the instrument follows the direction of the guide wire for surgical operation, which can improve the accuracy of the puncture direction of the instrument and the release direction of the occlusion disc.

[0033] In the present utility model, the occlusion piece is compressed and folded by the locking knot of the wire, and the occlusion piece can be locked with the wire to prevent falling off after being pressurized. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0035] Figure 1 is a perspective view of an exemplary embodiment of the present invention;

[0036] Figure 2 is a bottom view of an exemplary embodiment of the present invention;

[0037] Figure 3 are the front view and side view of the plugging disc in an exemplary embodiment of the present invention;

[0038] Figure 4 is a perspective view of the plugging piece in an exemplary embodiment of the present invention;

[0039] Figure 5 a is a schematic diagram of the wire in a relaxed state in an exemplary embodiment of the present invention;

[0040] Figure 5 b is a schematic diagram of the wire in a tightened state in an exemplary embodiment of the present invention;

[0041] Figure 6 is a perspective view of the plugging piece in a folded state in an exemplary embodiment of the present invention;

[0042] Figure 7 is a bottom view of the plugging piece in a folded state in an exemplary embodiment of the present invention;

[0043] Figure 8 is a schematic diagram of a blood vessel in the present invention;

[0044] Figure 9 is a schematic diagram of the application of an exemplary embodiment of the present invention to the plugging of a blood vessel wound;

[0045] Figure 10 is a schematic diagram of the folded state of the plugging disc when inserting a catheter in an exemplary embodiment of the present invention;

[0046] Figure 11 is another schematic diagram of the folded state of the plugging disc when inserting a catheter in an exemplary embodiment of the present invention;

[0047] Figure 12 is a schematic diagram of the folded state of the plugging disc when applying an exemplary embodiment of the present invention to inserting a catheter into a blood vessel;

[0048] Figure 13 It is a schematic diagram of an exemplary embodiment of the present utility model when the plugging disk is in the deployed state during the withdrawal of the catheter from the blood vessel;

[0049] Figure 14 It is a schematic diagram of an exemplary embodiment of the present utility model when the plugging sheet is in the folded state after the catheter is withdrawn from the blood vessel.

[0050] The reference numerals are explained as follows:

[0051] In the figure: 1, plugging sheet; 2, wire; 21, locking knot; 3, plugging disk; 31, support beam; 311, catheter socket; 312, wire threading hole; 32, first frame; 33, first disk surface; 34, second frame; 35, second disk surface; 4, catheter; 5, flow blocking membrane; 6, blood vessel; 61, intima of blood vessel; 62, adventitia of blood vessel; 63, media of blood vessel; 64, blood vessel wound. Detailed implementation manners

[0052] The following further describes in detail the implementation manners of the present application in conjunction with the drawings and embodiments. The detailed descriptions and drawings of the following embodiments are used to exemplarily illustrate the principle of the present application, but cannot be used to limit the scope of the present application. The present application can be implemented in many different forms, not limited to the specific embodiments disclosed in the text, but including all technical solutions falling within the scope of the claims.

[0053] These embodiments are provided by the present application to make the present application thorough and complete, and to fully express the scope of the present application to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of the components and steps, the components of the materials, the numerical expressions and values described in these embodiments should be construed as merely exemplary, rather than as limitations.

[0054] It should be noted that in the description of the present application, unless otherwise stated, the meaning of "a plurality" is greater than or equal to two; the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0055] In addition, the "first", "second" and similar terms used in this application do not denote any order, quantity or importance, but are merely used to distinguish different parts. "Vertical" does not mean strictly vertical, but within the allowable error range. "Parallel" does not mean strictly parallel, but within the allowable error range. Words such as "include" or "comprise" mean that the elements before this word cover the elements listed after this word, and do not exclude the possibility of also covering other elements.

[0056] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "install", "connect", and "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. When it is described that a specific device is located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0057] All terms used in this application have the same meanings as those understood by those of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as those, should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless specifically defined as such here.

[0058] Technologies, methods and devices known to those of ordinary skill in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and devices should be regarded as part of the specification.

[0059] As Figures 1-14 shown, the present utility model provides a vascular occlusion hemostat, comprising: a occlusion piece 1; a occlusion disc 3, the occlusion disc 3 being elastically deformable; a wire 2 having a first end and a second end, the first end of the wire 2 passing through the occlusion piece 1 and the occlusion disc 3 in sequence, and then passing through the occlusion piece 1 again to form an open loop; wherein, a locking knot 21 is formed above the first end of the wire 2 in the direction away from the occlusion disc 3 of the occlusion piece 1, and the locking knot closes the open loop; pulling the second end of the wire 2 in the direction away from the occlusion disc 3, the locking knot 21 slides towards the direction close to the occlusion disc 3 so that the occlusion piece 1 is compressed and folded.

[0060] As Figures 1-14As shown, the occluding sheet 1 and the wire 2 are located on one side of the occluding disc 3. During interventional treatment, the catheter 4 cooperates with the vascular occluding hemostat to be inserted into the vascular wound 64, the occluding disc 3 passes through the vascular wound 64 and enters the vascular intima 61, the occluding sheet 1 is placed outside the vascular adventitia 62, and the occluding sheet 1 and the occluding disc 3 are connected by the wire 2. The extended part of the wire 2 is stretched outward so that the locking knot 21 can slide downward, compressing the occluding sheet 1 to fold outside the vascular adventitia 62 to block the vascular wound 64, so that the vascular wound 64 is closed and hemostasis is achieved.

[0061] In a specific embodiment, the occluding disk 3 includes a support beam 31, and the support beam 31 is provided with a catheter insertion port 311 for inserting the catheter 4. Figures 1-3 As shown, the support beam 31 is in the shape of a long strip, and the support beam 31 can effectively support the overall structure of the occluding disc 3, so that it can be clamped in the vascular endothelium 61 to achieve fixation and achieve hemostasis. A catheter socket 311 is provided in the middle of the support beam 31, and the catheter 4 is inserted into the middle of the occluding disc 3 through the catheter socket 311 before surgery.

[0062] In a specific embodiment, the catheter socket 311 is a self-resetting cover with a pre-cut groove. When the catheter 4 is inserted into the catheter socket 311, the self-resetting cover is pushed open, and when the catheter 4 is pulled out of the catheter socket 311, the self-resetting cover is reset. The pre-cut groove can facilitate the insertion of the catheter. The pre-cut groove can pass through the support beam 31, and the material of the support beam 31 can also be thinned, so that the self-resetting cover can be easily opened according to the position of the pre-cut groove.

[0063] In a specific embodiment, the pre-cut groove and the self-resetting cover are U-shaped, and the opening direction of the self-resetting cover is toward the blocking piece 1. Figures 1-14 As shown, the closed end of the U-shaped pre-cut groove cannot be opened, that is, the self-resetting cover can only be pushed open from the direction of the threading hole 312, that is, the opening direction of the self-resetting cover is toward the blocking piece 1. If the opening direction is opposite, the insertion position of the catheter 4 will be offset from the threading position of the wire 2, resulting in a decrease in the accuracy of subsequent surgical operations. After the catheter 4 passes through the catheter socket 311, its insertion direction is the same as the extension direction of the blocking piece 1 and the extension direction of the wire 2, that is, the axis of the inserted catheter 4 coincides with the axis of the extension direction of the blocking piece 1 and the wire 2. This can ensure that the interventional device entering from the catheter 4 is always in the same direction as the wire 2, and the surgical operation can be performed following the direction of the guidewire, thereby improving the accuracy of the instrument puncture direction and the release direction of the blocking disk 3 and the pulling direction of the wire 2.

[0064] In a specific embodiment, the catheter 4 is inserted into the catheter insertion port 311 from the side of the blocking disk 3 away from the blocking sheet 1, and the opening direction of the self-resetting cover is located on the same side as the blocking sheet 1.Figures 10-12 As shown, after the catheter 4 is inserted into the wound of the blood vessel 6 in cooperation with the vascular occlusion hemostat, the self-resetting cover opens towards the outer side of the blood vessel 6, which can to a certain extent prevent blood loss. After the catheter 4 is withdrawn, the self-resetting cover will reset, that is, lie flat to block the catheter socket 311, preventing blood from flowing out of the catheter socket.

[0065] In a specific embodiment, the support beam 31 is provided with a threading hole 312 for the wire 2 to pass through. As Figures 1-3 shown, two threading holes 312 are provided on the support beam 31. The wire 2 has a first end and a second end. The first end of the wire 2 sequentially passes through the occluding piece 1 and the occluding disc 3, and then passes through the occluding piece 1 again to form an open loop. The wire 2 can be a rope, a silk thread, a wire harness or other materials with toughness that can be used for weaving, connecting or supporting. A locking knot 21 is formed above the first end of the wire 2 in the direction away from the occluding disc 3 of the occluding piece 1, and the locking knot 21 closes the open loop. In another specific embodiment, a threading loop is provided on the support beam 31, and the wire 2 can also pass through it to realize the connection between the occluding piece 1 and the occluding disc 3, and at the same time complete the loop. At the same time, avoiding perforating the support beam 31 can further improve the sealing performance and stability.

[0066] In a specific embodiment, the occluding disc 3 includes a first frame 32, both ends of the first frame 32 are respectively connected to both ends of the support beam 31, and a first disc surface 33 is surrounded by the first frame 32 and the support beam 31; a second frame 34, both ends of the second frame 34 are respectively connected to both ends of the support beam 31, the first frame 32 and the second frame 34 are respectively located on both sides of the support beam 31, and a second disc surface 35 is surrounded by the second frame 34 and the support beam 31.

[0067] In a specific embodiment, as Figures 1-3 shown, the occluding disc 3 is composed of a first frame 32 and a second frame 34 to form an oval frame, and the support beam 31 is located on the long axis of the oval frame. The first frame 32 and the second frame 34 are foldable. As Figures 10-12 shown, the first frame 32 and the second frame 34 are folded towards the center of the occluding disc 3. The catheter 4 passes through the first disc surface 33 and the second disc surface 35 and is inserted into the catheter socket 311. The first frame 32 and the second frame 34 are clamped by the catheter 4, and the occluding disc 3 is in a folded state.

[0068] In a specific embodiment, as Figures 13-14As shown, the first frame 32 and the second frame 34 have a shape memory function. When the catheter 4 is withdrawn from the catheter socket 311, the first frame 32 and the second frame 34 expand, and the occlusion disc 3 is in an expanded form suitable for occluding the vascular wound 64. After the occlusion disc 3 expands, the occlusion disc 3 with a larger volume can better adapt to the special shape of the wound, fit the inner wall of the vascular intima 61 of the vascular wound 64, and prevent blood leakage from the vascular wound 64.

[0069] In another specific embodiment, a longitudinal beam can be further added to the occlusion disc 3, so that the folding area of the occlusion disc 3 is split into four parts. Both ends of the second frame 34 are respectively connected to both ends of the support beam 31. The first frame 32 and the second frame 34 are respectively located on both sides of the support beam 31. A rectangular frame is formed by the first frame 301 and the second frame 302. The longitudinal beam is parallel to the short side of the rectangular frame, perpendicular to the support beam 31, and located in the middle of the support beam 31. The structure of the occlusion disc 3 is approximately in the shape of a "field". The first frame 32 and the support beam 31 and the longitudinal beam enclose a first folding surface and a second folding surface; the second frame 34 and the support beam 31 and the longitudinal beam enclose a third folding surface and a fourth folding surface. The first frame 32 and the second frame 34 have a folding function. The first folding surface, the second folding surface, the third folding surface, and the fourth folding surface are folded towards the center of the occlusion disc 3. The catheter 4 can make the vertices of the first frame 32 and the second frame maintain the folded state by abutting, and the occlusion disc 3 is in the folded state, further reducing the volume of the occlusion disc 3 in the folded state and avoiding damage to the blood vessel.

[0070] In a specific embodiment, both the first frame 32 and the second frame 34 include a straight edge and two arc edges located at both ends of the straight edge. In another specific embodiment, the first frame 32 and the second frame 34 are in a wavy structure. The wavy structure design is beneficial to reducing the curling difficulty of the occlusion disc 3, so that the occlusion disc 3 can be more easily loaded into the catheter 4.

[0071] The occlusion disc 3 in this embodiment can be made by cutting a nickel-titanium alloy material plate, which has a simpler processing technology, is beneficial to reducing the production cost, and thus improves the market competitiveness of the product.

[0072] In a specific embodiment, when the occlusion disc 3 is in an expanded form suitable for occluding the wound, the surface of the occlusion disc 3 adjacent to the occlusion piece 1 is an arc surface to be suitable for fitting with the vascular intima 61.

[0073] In a specific embodiment, the locking knot 21 is a slip knot formed by winding and braiding a double-strand rope. The locking knot 21 is as Figure 5 a, Figure 5As shown in Fig. b, by pulling the second end of the wire 2, the closed loop formed by the second end of the wire 2 and the locking knot 21 can be narrowed and shortened, so that the locking knot 21 slides in the direction close to the plugging disc 3. As Figure 1 , 2 shown, when the locking knot 21 does not slide, the plugging piece 1 is a wavy plugging cotton strip. After sliding the locking knot 21 in the direction close to the plugging disc 3, as Figure 6 , 7 shown, the plugging piece 1 is folded and compressed into a multi-layer Z-shaped folded piece. At this time, as Figure 9 shown, the plugging piece 2 can closely adhere to the outer wall of the adventitia 62 of the blood vessel, compress the adventitia 62 of the blood vessel, prevent blood from flowing out through the wound, and reduce blood loss.

[0074] In a specific embodiment, the plugging piece 1 has biocompatibility and increases in volume after absorbing liquid. The plugging piece 1 can be a plugging cotton strip, which can effectively absorb liquid and will not cause rejection reaction at the same time.

[0075] In a specific embodiment, the plugging piece 1 is a wavy cotton piece, the locking knot 21 slides in the direction close to the plugging disc 3, and the plugging piece 1 is compressed and folded in a Z-shaped folding shape until the plugging piece 1 closely adheres to the adventitia 62 of the blood vessel.

[0076] In a specific embodiment, the blood vessel plugging and hemostasis device further includes a flow blocking membrane 5, and the flow blocking membrane 5 wraps the plugging disc 3. The flow blocking membrane 5 can be a membrane made of a polymer material such as PET or ePTFE. In one embodiment, the flow blocking membrane 5 has self-sealing property and can automatically seal the plugging disc 3 after the catheter 4 is withdrawn to ensure sealing and prevent blood leakage from the plugging disc 3.

[0077] So far, the embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details well known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0078] Although some specific embodiments of the present application have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be equivalently replaced without departing from the scope and spirit of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. A vascular occlusion hemostat, characterized in that, include: Blocking piece (1); A sealing disk (3), wherein the sealing disk (3) is elastically deformable; A wire (2), wherein the wire (2) has a first end and a second end, and the first end of the wire (2) passes through the blocking piece (1) and the blocking disk (3) in sequence, and then passes through the blocking piece (1) again to form an open loop; wherein, A locking knot (21) is formed at the first end of the wire (2) above the blocking piece (1) in a direction away from the blocking disk (3), and the locking knot (21) closes the open loop; The second end of the wire (2) is pulled in a direction away from the occluding disk (3), and the locking knot (21) slides in a direction close to the occluding disk (3) so that the occluding sheet (1) is compressed and folded.

2. The vascular occlusion hemostat according to claim 1, wherein The blocking disk (3) comprises a support beam (31), and the support beam (31) is provided with a catheter insertion port (311) for inserting a catheter (4).

3. The vascular occlusion hemostat according to claim 2, characterized in that, The catheter socket (311) is a self-resetting cover with a pre-cut groove. When the catheter (4) is inserted into the catheter socket (311), the self-resetting cover is pushed open; when the catheter (4) is pulled out of the catheter socket (311), the self-resetting cover is reset.

4. The vascular occlusion hemostat according to claim 3, characterized in that, The pre-cut groove and the self-resetting cover are U-shaped, and the opening direction of the self-resetting cover faces the blocking piece (1).

5. The vascular occlusion hemostat according to claim 4, characterized in that, The catheter (4) is inserted into the catheter insertion port (311) from the side of the blocking disk (3) facing away from the blocking piece (1), and the opening direction of the self-resetting cover is located on the same side as the blocking piece (1).

6. The vascular occlusion hemostat according to claim 2, wherein The support beam (31) is provided with a threading hole (312) or a threading ring for allowing the wire (2) to pass through.

7. The vascular occlusion hemostat according to claim 2, wherein, The blocking plate (3) comprises a first frame (32), two ends of the first frame (32) are respectively connected to two ends of the support beam (31), and the first frame (32) and the support beam (31) form a first plate surface (33); A second frame (34), two ends of the second frame (34) are respectively connected to two ends of the support beam (31), the first frame (32) and the second frame (34) are respectively located on two sides of the support beam (31), and a second disk surface (35) is surrounded by the second frame (34) and the support beam (31).

8. The vascular occlusion hemostat according to claim 7, characterized in that, The first frame (32) and the second frame (34) are foldable. The first frame (32) and the second frame (34) are folded toward the center of the blocking disk (3), the catheter (4) passes through the first disk surface (33) and the second disk surface (35) and is inserted into the catheter socket (311), the first frame (32) and the second frame (34) are clamped by the catheter (4), and the blocking disk (3) is in a folded state.

9. The vascular occlusion hemostat according to claim 8, characterized in that, The first frame (32) and the second frame (34) have a shape memory function. When the catheter (4) is pulled out of the catheter socket (311), the first frame (32) and the second frame (34) are unfolded, and the occluding disk (3) is in an unfolded state suitable for occluding the blood vessel wound (64).

10. The vascular occlusion hemostat according to claim 9, characterized in that, When the plugging disc (3) is in an unfolded state suitable for plugging the wound, the surface of the plugging disc (3) adjacent to the plugging piece (1) is an arc surface, so as to be suitable for fitting with the vascular intima (61).

11. The vascular occlusion hemostat according to claim 1, characterized in that, The plugging piece (1) has biocompatibility and its volume increases after absorbing liquid.

12. The vascular occlusion hemostat according to claim 11, characterized in that, The plugging piece (1) is a wavy cotton sheet. The locking knot (21) slides towards the direction close to the plugging disc (3), and the plugging piece (1) is compressed and folded in a Z-shaped folding shape until the plugging piece (1) closely adheres to the vascular adventitia (62).

13. The vascular occlusion hemostat according to claim 1, wherein, The locking knot (21) is a slipknot formed by winding and braiding a double-strand rope.

14. The vascular occlusion hemostat according to claim 1, characterized in that, The vascular plugging hemostat further includes a flow blocking film (5), and the flow blocking film (5) wraps the plugging disc (3).

15. The vascular occlusion hemostat according to any one of claims 1 to 14, wherein The axis of the wire (2) coincides with the axis of the catheter (4).

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