A vascular closure device delivery system

Abstract

The application discloses a vascular closure device delivery system, which comprises a handle unit, a catheter sheath unit and a blocking unit. The handle unit comprises an anchor sheet pushing rod and an absorbable wire, the anchor sheet pushing rod is used for moving along the length direction of the handle unit under the driving of a driving element; the catheter sheath unit is connected with the handle unit; the blocking unit is arranged in the catheter sheath unit and is connected with the absorbable wire; wherein the driving element can drive the anchor sheet pushing rod to move in the catheter sheath unit to push the blocking unit to move into the human body along the catheter sheath unit; when the blocking unit enters the human body, the absorbable wire can adjust the orientation and position of the blocking unit. The handle unit, the catheter sheath unit and the blocking unit are matched and used, the operation is simple, and the operation difficulty and the doctor learning curve are effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a vascular closure device delivery system. Background Technology

[0002] Vascular closure devices are mainly used to close blood vessels. They are mainly divided into suture-type closure devices and collagen-type closure devices. Collagen-type closure devices are not suitable for closing large-diameter blood vessels, while suture-type closure devices require the use of multiple instruments in combination to block large-diameter blood vessels, which is complicated to operate and can easily damage blood vessels.

[0003] In the existing technology, different types of closure devices are adapted to different delivery systems. For the closure of large-diameter blood vessels, a larger sheath is required, and the operation of the handle is more cumbersome. For example, the Proglide suture type closure device has a complex structure, is more cumbersome to operate, requires a high level of skill from the doctor, and has a long learning curve.

[0004] Therefore, a new technological solution is needed. Summary of the Invention

[0005] In view of this, embodiments of the present invention provide a vascular closure device delivery system to at least solve the problems of complex structure and cumbersome handle operation of existing vascular closure device delivery systems.

[0006] The embodiments of the present invention provide the following technical solutions:

[0007] This invention provides a vascular closure device delivery system, comprising:

[0008] A handle unit, comprising an anchor plate push rod and an absorbable line, wherein the anchor plate push rod is used to move along the length direction of the handle unit under the drive of a drive element;

[0009] A catheter sheath unit, which is connected to the handle unit;

[0010] An occlusion unit is disposed within the catheter sheath unit and connected to the absorbable line;

[0011] The driving element can drive the anchoring plate push rod to move within the catheter sheath unit, thereby pushing the occlusion unit to move along the catheter sheath unit to enter the human body; when the occlusion unit enters the human body, the absorbable line can adjust the orientation of the occlusion unit.

[0012] Furthermore, the handle unit also includes:

[0013] A limiting element is slidably disposed on the outer wall of the handle unit and corresponding to and cooperating with the driving element. The limiting element is used to limit or release the driving element.

[0014] Furthermore, the handle unit also includes:

[0015] A three-lumen tube element is used to insert into the catheter sheath unit when the catheter sheath unit is connected to the handle unit, thereby pushing the occlusion unit to move along the catheter sheath unit;

[0016] The absorbable line passes through the first cavity of the three-cavity tube element, and when the anchoring plate push rod pushes the sealing unit into the human body, the anchoring plate push rod is inserted into the second cavity of the three-cavity tube element.

[0017] Furthermore, the handle unit also includes:

[0018] A guide wire element, which passes through the third cavity of both the occlusion unit and the three-lumen tube element, is used to guide the occlusion unit into a designated location within the human body.

[0019] Furthermore, the catheter sheath unit includes:

[0020] A guide sleeve, one end of which is connected to the handle unit via a snap fastener, and a hemostatic valve is provided at the end of the guide sleeve connected to the handle unit. The interior of the guide sleeve is used to house the occlusion unit.

[0021] A catheter sheath element, one end of which is connected to the other end of the guide sleeve.

[0022] Furthermore, the catheter sheath unit also includes:

[0023] A dilation catheter for removable insertion into the catheter sheath element to guide the catheter sheath element into the human body.

[0024] Furthermore, the handle unit also includes:

[0025] A first connector is disposed on the handle unit;

[0026] Furthermore, the catheter sheath unit also includes:

[0027] The second connector is disposed on the guide sleeve and is connected to the first connector.

[0028] Furthermore, the blocking unit includes:

[0029] The sealing unit body includes a straight section and an inclined section. The inclined section is inclinedly disposed at the end of the straight section, and the straight section is provided with an absorbable wire hole for connection with the absorbable wire.

[0030] A diaphragm is disposed at the end of the straight portion of the main body of the sealing unit away from the inclined portion;

[0031] An anchoring piece is disposed at the end of the inclined portion near the straight portion along the extension direction of the inclined portion, for insertion into human fat or tissue.

[0032] Furthermore, the main body of the sealing unit, the diaphragm, and the anchoring plate are all made of absorbable materials.

[0033] Furthermore, the membrane is elastic and has irregularly shaped pores on its surface to facilitate endothelialization.

[0034] Compared with the prior art, the beneficial effects that the at least one technical solution adopted in the embodiments of the present invention can achieve include at least:

[0035] The present invention provides a vascular closure device delivery system that combines a handle unit, a catheter sheath unit, and an occlusion unit in a coordinated manner, with matching specifications and simple operation, effectively reducing the difficulty of operation and the learning curve for doctors. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a top view of a vascular closure device delivery system according to an embodiment of the present invention;

[0038] Figure 2 This is a partial cross-sectional view of a vascular closure device delivery system according to an embodiment of the present invention;

[0039] Figure 3 for Figure 2 Schematic diagram of the structure of section A;

[0040] Figure 4 This is a top view of a partial cross-sectional view of a vascular closure device delivery system according to an embodiment of the present invention;

[0041] Figure 5 This is a schematic diagram of the structure of a catheter sheath unit in a vascular closure device delivery system according to an embodiment of the present invention;

[0042] Figure 6 This is a schematic diagram of the guide sleeve in a vascular closure device delivery system according to an embodiment of the present invention;

[0043] Figure 7 This is a schematic diagram of the structure of a catheter sheath unit with a dilating catheter in a vascular closure device delivery system according to an embodiment of the present invention;

[0044] Figure 8 This is a side view of a closure unit in a vascular closure device delivery system according to an embodiment of the present invention;

[0045] Figure 9 This is a perspective view of a closure unit in a vascular closure device delivery system according to an embodiment of the present invention;

[0046] The reference numerals in the drawings of this invention are as follows:

[0047] 10. Handle unit; 11. Anchor plate push rod; 12. Absorbable wire; 13. Drive element; 14. Limiting element; 15. Three-chamber tube element; 16. Conveyor handle body; 17. Drain valve; 18. Check valve; 19. Guide wire element;

[0048] 20. Catheter sheath unit; 21. Guide cannula; 22. Catheter sheath element; 23. Dilatation catheter;

[0049] 30. Sealing unit; 31. Sealing unit body; 311. Straight section; 312. Inclined section; 32. Absorbable wire hole; 33. Diaphragm; 34. Anchor plate. Detailed Implementation

[0050] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0051] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0052] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0053] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0054] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0055] Cardiovascular and cerebrovascular diseases are the leading cause of death worldwide. Interventional surgery, due to its minimal invasiveness and high efficacy, has become a primary treatment method. Vascular closure refers to the process of closing the cavity created at the puncture site during minimally invasive cardiovascular diagnosis and interventional surgery to prevent blood loss. Vascular closure can typically be achieved through four methods: manual compression, closure aids, surgical suturing, and vascular closure devices.

[0056] Manual compression hemostasis is the most traditional and currently the most commonly used method for arterial hemostasis. Its advantages lie in its economy and relative reliability; when other methods fail, this method is ultimately the only recourse. However, its disadvantages are also significant: it is time-consuming and laborious, and it exacerbates patient suffering. The compression hemostasis time after tube removal is typically around 25 minutes. After compression hemostasis, pressure bandaging is required for 6–12 hours, followed by 18–24 hours of bed rest. In cases involving obese patients or puncture sites that are too high or too low, complications such as difficulty in compression, local hematoma, pseudoaneurysm, arteriovenous fistula, vagal reflex, and lower extremity deep vein thrombosis may occur. For large-diameter vessels, sutures and closure devices are necessary, especially in surgeries such as valve implantation.

[0057] Currently, vascular closure devices are mainly suture-based and collagen-based. Collagen-based devices are not currently suitable for closing large-diameter blood vessel walls, while suture-based devices require the use of multiple instruments in combination to block large-diameter blood vessels, which is complex and can easily damage blood vessels.

[0058] In the current use of vascular closure devices, each device is equipped with a suitable delivery system. For the closure of large-diameter vessels, a larger sheath is required, and the operation of the handle is more cumbersome. For example, the Proglide suture-type closure device has a complex structure, is more cumbersome to operate, requires a high level of skill from the doctor, and has a long learning curve. The Angio seal collagen occlusion type closure device is simpler to operate than the suture-type closure device, but its operation is choppy, lacks good mechanical feedback, and cannot accurately locate the displacement distance of the internal catheter, which can easily lead to surgical failure.

[0059] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.

[0060] like Figures 1-8 As shown, this embodiment of the invention provides a vascular closure device delivery system, including a handle unit 10, a catheter sheath unit 20, and an occlusion unit 30. The handle unit 10 includes an anchoring rod 11 and an absorbable wire 12. The anchoring rod 11 is used to move along the length of the handle unit 10 under the drive of a driving element 13. The catheter sheath unit 20 is connected to the handle unit 10. The occlusion unit 30 is disposed within the catheter sheath unit 20 and connected to the absorbable wire 12.

[0061] The driving element 13 can drive the anchoring plate push rod 11 to move within the catheter sheath unit 20, thereby pushing the occlusion unit 30 to move along the catheter sheath unit 20 to enter the human body; when the occlusion unit 30 enters the human body, the absorbable line 12 can adjust the orientation of the occlusion unit 30.

[0062] like Figures 1-4 As shown, the handle unit 10 also includes a conveyor handle body 16, an exhaust valve 17, a one-way valve 18, a three-chamber tube element 15, and other structures.

[0063] The conveyor handle body 16 is used to provide installation support.

[0064] The venting valve 17 is located at the end of the delivery handle body 16 near the catheter sheath unit 20 and is used for venting during use; the one-way valve 18 is located at the end of the delivery handle body 16 away from the catheter sheath unit 20 and is a one-way hemostatic valve used to prevent intraoperative bleeding.

[0065] The absorbable line 12 is used to release the plugging structure.

[0066] Specifically, one end of the absorbable wire 12 passes through the absorbable wire hole 32 on the sealing unit 30, and the other end is connected to the Luer cap on the handle unit 10. The position and angle of the sealing unit 30 can be adjusted by the absorbable wire 12; and cutting the absorbable wire 12 can release the sealing unit 30.

[0067] The drive element 13 is used to drive the anchoring plate push rod 11 to move within the conveyor handle body 16, so that the anchoring plate push rod 11 pushes the sealing unit 30 to move within the catheter sheath unit 20.

[0068] In some embodiments, the drive element 13 includes a gear structure and a rotating housing, wherein the gear structure is disposed within the conveyor handle body 16 and coaxially connected to the anchor plate push rod 11; the rotating housing is meshed with the gear structure and rotatably disposed on the outer side wall of the conveyor handle body 16.

[0069] Specifically, the anchoring plate push rod 11 is mounted inside the conveyor handle body 16, and the gear structure is meshed with the rotating housing. Thus, when the rotating housing rotates, the rotating housing can drive the gear structure to move, and then the gear structure drives the anchoring plate push rod 11 to move.

[0070] In some embodiments, the drive element 13 may be a drive rod connected to the anchor plate push rod 11, so that when the drive rod is pushed to move along the conveyor handle body 16, the drive rod drives the anchor plate push rod 11 to move.

[0071] When the driving element 13 is a driving rod, a groove is provided on the conveyor handle body 16 so that the driving element 13 can move in the groove along the length direction of the conveyor handle body 16.

[0072] In this invention, the driving element 13 can be a variety of driving structures. Any driving structure that can push the anchor plate push rod 11 to move along the length direction of the handle unit 10 is within the protection scope of this application.

[0073] Furthermore, the handle unit 10 also includes a limiting element 14, which is slidably disposed on the outer wall of the handle unit 10 and is corresponding to and cooperates with the drive element 13. The limiting element 14 is used to limit or release the drive element 13 to avoid accidental contact that would cause the drive element 13 to move the anchor plate push rod 11.

[0074] In some of these embodiments, where the drive element 13 includes a gear structure and a rotating housing, the limiting element 14 may be a limiting block.

[0075] In this design, a limiting hole is provided on the side wall of the rotating housing. The limiting element 14 can slide along the length direction of the handle unit 10 to enter the limiting hole. Since the limiting element 14 cannot rotate along the handle unit 10, the limiting element 14 can restrict the rotation of the rotating housing.

[0076] In some of these embodiments, when the drive element 13 is a drive rod and the drive rod is movable along the length of the conveyor handle, the limiting element 14 is configured to be movable circumferentially along the conveyor handle body 16.

[0077] Specifically, several limiting holes are opened on the side wall of the drive rod. When limiting the drive rod, the limiting element 14 can be moved along the circumference of the conveyor handle body 16 to be inserted into the limiting hole opened on the side wall of the drive rod, thereby restricting the drive rod from moving along the length direction of the conveyor handle body 16.

[0078] In some embodiments, the handle unit 10 further includes a three-lumen tube element 15, which is used to insert into the catheter sheath unit 20 when the catheter sheath unit 20 is connected to the handle unit 10, and to push the occlusion unit 30 to move along the catheter sheath unit 20.

[0079] The absorbable line 12 passes through the first cavity of the three-cavity tube element 15, and when the anchoring plate push rod 11 pushes the sealing unit 30 into the human body, the anchoring plate push rod 11 is inserted into the second cavity of the three-cavity tube element 15.

[0080] The three-lumen tube element 15 is used to push the occlusion unit 30 into the human body when the occlusion unit 30 is placed inside the catheter sheath unit 20, and is also used to install the anchoring plate push rod 11, the guide wire element 19, the absorbable wire 12 and other structures.

[0081] In some embodiments, the handle unit 10 further includes a guide wire element 19, which passes through the third cavity of both the occlusion unit 30 and the three-lumen tube element 15, for guiding the occlusion unit 30 into a designated location within the human body.

[0082] By placing the anchoring plate push rod 11, guide wire element 19, absorbable wire 12, and other structures in different cavities, it is possible to avoid mutual interference between the anchoring plate push rod 11, guide wire element 19, and absorbable wire 12.

[0083] In some of these embodiments, such as Figures 5-7 As shown, the catheter sheath unit 20 includes a guide sleeve 21 and a catheter sheath element 22. One end of the guide sleeve 21 is connected to the handle unit 10 via a snap fastener, and a hemostatic valve is provided at the end of the guide sleeve 21 connected to the handle unit 10. The interior of the guide sleeve 21 is used to house the occlusion unit 30. One end of the catheter sheath element 22 is connected to the other end of the guide sleeve 21 and is used to insert into the human body to deliver the occlusion unit 30 into the human body.

[0084] In some embodiments, the front end of the guide sleeve 21 is transparent to observe the contraction state of the sealing unit 30.

[0085] The end of the catheter sheath element 22 away from the handle unit 10 is configured as a tip to facilitate insertion into the opening position.

[0086] The catheter sheath element 22 adopts a braided tube structure to enhance the tube strength of the catheter sheath element 22.

[0087] Among them, the catheter sheath element 22 is provided with a cross-cut silicone hemostasis structure on the side near the guide sleeve 21.

[0088] The catheter sheath element 22 has a side hole on its side wall, which allows the position of the catheter sheath to be determined. The amount of bleeding helps in accurate positioning.

[0089] The catheter sheath element 22 is first engaged with the guide sleeve 21 via a snap fastener, and then assembled with the snap fastener at the tail of the catheter sheath element 22 via a snap fastener on the guide sleeve 21.

[0090] The occlusion unit 30 is in the unfolded state before use and is first retracted into the guide cannula 21 during use. Different specifications of occlusion structures are equipped with corresponding size catheter sheaths, which are inserted into the blood vessel through the catheter sheaths during the operation.

[0091] Furthermore, the catheter sheath unit 20 also includes a dilation catheter 23, which is removably inserted into the catheter sheath element 22 to guide the catheter sheath element 22 into the human body.

[0092] The dilation catheter 23 can be configured as a conical structure or a combination of a conical structure and a cylindrical structure.

[0093] In some embodiments, the handle unit 10 further includes a first connector disposed on the handle unit 10 for connection to the catheter sheath unit 20.

[0094] The catheter sheath unit 20 also includes a second connector, which is disposed on the guide sleeve 21 and is connected to the first connector for connection with the first connector.

[0095] Preferably, the first connector and the second connector are interference-fitted to increase the strength of the connection between the first connector and the second connector.

[0096] Specifically, the guide sleeve 21 has a turn connector, which is used to connect the two by engaging with the male end of the delivery handle body 16. The guide sleeve 21 is inserted into the catheter sheath by an interference fit to achieve engagement with the catheter sheath.

[0097] By providing a second connector of the same size on guide sleeves 21 of different sizes, the handle unit 10 can connect to catheter sheath units 20 of different sizes through the first connector and the second connector.

[0098] In some of these embodiments, such as Figures 8-9 As shown, the sealing unit 30 includes a sealing unit body 31, a diaphragm 33, and an anchoring plate 34. The sealing unit body 31 includes a straight portion 311 and an inclined portion 312. The inclined portion 312 is inclinedly disposed at the end of the straight portion 311, and the straight portion 311 is provided with an absorbable wire hole 32 for connection with the absorbable wire 12. The diaphragm 33 is disposed at the end of the straight portion 311 away from the inclined portion 312. The anchoring plate 34 is disposed along the extending direction of the inclined portion 312 at the end of the inclined portion 312 near the straight portion 311, for insertion into human fat or tissue.

[0099] The diaphragm 33 is attached to the end of the straight section 311 of the sealing unit body 31.

[0100] The anchoring plate 34 is controlled by the anchoring plate push rod 11 of the handle unit 10, and is used to insert the anchoring plate 34 into human fat or tissue under the push of the anchoring plate push rod 11.

[0101] The sealing unit body 31, the diaphragm 33, and the anchoring plate 34 are all made of absorbable materials, so that the sealing unit 30 can be completely degraded after entering the human body.

[0102] Furthermore, the membrane 33 is elastic and has irregularly shaped pores on its surface to facilitate endothelialization and accelerate the healing speed at the vascular opening.

[0103] Because the membrane 33 is made of a biodegradable material and has a certain degree of elasticity, it can adhere to the inner wall of the blood vessel after being released into the vessel. Since the anchoring piece 34 is also made of a biodegradable material and is more rigid than the membrane 33, it can penetrate the fat and tissue of the outer wall of the blood vessel under the control of the handle unit 10 to fix the occlusion structure.

[0104] Specifically, after the occlusion unit 30 is inserted into the blood vessel, the diaphragm 33 is attached to the inner wall of the blood vessel, and the anchoring piece 34 is fixed to the outside of the blood vessel.

[0105] The absorbable wire 12 is connected to the absorbable wire through the absorbable wire hole 32, so that the overall orientation of the occlusion unit 30 can be adjusted through the absorbable wire 12, so that the membrane 33 can completely cover the blood vessel tear, and it is also convenient to adjust the position of the occlusion unit 30 and the operation of fitting and releasing.

[0106] A specific implementation of this invention is as follows:

[0107] First, insert the catheter sheath unit 20 into the blood vessel, insert the guide wire element 19, withdraw the dilation catheter 23, retract the diaphragm 33 into the guide sleeve 21, pass the occlusion unit 30 through the guide wire element 19, connect the guide sleeve 21 to the catheter sheath element 22, and then push the handle unit 10 forward until the handle unit 10 is connected to the guide sleeve 21. At this time, the occlusion unit 30 has entered the blood vessel. By retracting the entire vascular closure device delivery system backward, the diaphragm 33 of the occlusion unit 30 is pressed tightly against the inner wall of the blood vessel. Push the limiting element 14 to unlock the locking of the driving element 13. Then, push the anchoring plate push rod 11 through the driving element 13 to push the anchoring plate 34 forward. Open the Luer cap on the handle unit 10 to expose the two absorbable wires 12 inside. Cut one of them and pull it backward to remove the absorbable wire 12. Then, withdraw the entire delivery device structure from the body to complete the release of the occlusion unit 30.

[0108] This invention closes blood vessels through interventional procedures, quickly closing the vascular opening by replacing it with a matching sheath. It is especially effective for incisions in large-diameter blood vessels, overcoming the drawbacks of traditional sutures such as blood leakage and incomplete hemostasis by pressure.

[0109] This invention closes blood vessels using a delivery handle and a blood vessel closure device. The membrane 33 of the closure device can fit well against the inner wall of the blood vessel. The anchoring piece 34, with the help of the fat and tissue on the outer layer of the blood vessel, can work well with the membrane 33 to physically clamp and close the blood vessel wall with incisions.

[0110] This invention utilizes biodegradable polymer materials. The membrane 33, anchoring sheet 34, sealing structure main body, and absorbable thread 12 can be completely degraded within the human body, with degradation products being carbon dioxide and water. The biodegradable material can be one or more of (PLA, PLGA, PGA, PCL, PHA).

[0111] This invention utilizes a combination of a blocking structure, a catheter sheath assembly, and a delivery handle, ensuring compatibility, ease of operation, and a significantly reduced learning curve for doctors.

[0112] This invention, by setting a special snap-fit ​​structure and interfering the snap-fits together, can prevent the handle from rotating during surgical operations, thus preventing the sealing structure from rotating and reducing the probability of sealing failure.

[0113] In this specification, the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, for the product embodiments described later, since they correspond to the methods, the descriptions are relatively simple, and the relevant parts can be referred to the descriptions in the system embodiments.

[0114] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A vascular closure device delivery system, characterized in that, include: A handle unit, comprising an anchor plate push rod and an absorbable line, wherein the anchor plate push rod is used to move along the length direction of the handle unit under the drive of a drive element; A catheter sheath unit, which is connected to the handle unit; An occlusion unit is disposed within the catheter sheath unit and connected to the absorbable line; The handle unit includes: A three-lumen tube element is used to insert into the catheter sheath unit when the catheter sheath unit is connected to the handle unit, thereby pushing the occlusion unit to move along the catheter sheath unit; wherein the absorbable line passes through the first lumen of the three-lumen tube element, and when the anchoring plate push rod pushes the occlusion unit into the human body, the anchoring plate push rod is inserted into the second lumen of the three-lumen tube element; A guide wire element, which passes through the third cavity of both the occlusion unit and the three-lumen tube element, is used to guide the occlusion unit into a designated location within the human body; The catheter sheath unit includes: A guide sleeve, one end of which is connected to the handle unit via a snap fastener, and a hemostatic valve is provided at the end of the guide sleeve connected to the handle unit. The interior of the guide sleeve is used to house the occlusion unit. A catheter sheath element, one end of which is connected to the other end of the guide sleeve; The blocking unit includes: The sealing unit body includes a straight section and an inclined section. The inclined section is inclinedly disposed at the end of the straight section, and the straight section is provided with an absorbable wire hole for connection with the absorbable wire. A diaphragm is disposed at the end of the straight portion of the main body of the sealing unit away from the inclined portion; An anchoring piece is disposed at the end of the inclined portion near the straight portion along the extending direction of the inclined portion, for insertion into human fat or tissue; The driving element can drive the anchoring plate push rod to move within the catheter sheath unit, thereby pushing the occlusion unit to move along the catheter sheath unit into the human body; when the occlusion unit enters the human body, the absorbable line can adjust the orientation and position of the occlusion unit.

2. The vascular closure device delivery system according to claim 1, characterized in that, The handle unit also includes: A limiting element is slidably disposed on the outer wall of the handle unit and corresponding to and cooperating with the driving element. The limiting element is used to limit or release the driving element.

3. The vascular closure device delivery system according to claim 1, characterized in that, The catheter sheath unit also includes: A dilation catheter for removable insertion into the catheter sheath element to guide the catheter sheath element into the human body.

4. The vascular closure device delivery system according to claim 1, characterized in that, The handle unit also includes: A first connector is disposed on the handle unit; The catheter sheath unit also includes: The second connector is disposed on the guide sleeve and is connected to the first connector.

5. The vascular closure device delivery system according to claim 1, characterized in that, The main body of the sealing unit, the diaphragm, and the anchoring plate are all made of absorbable material.

6. The vascular closure device delivery system according to claim 1, characterized in that, The membrane is elastic and has irregularly shaped pores on its surface to facilitate endothelialization.

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