Blood vessel crevasse closing device

Abstract

The invention provides a blood vessel crevasse closing device, which relates to the technical field of medical apparatus and instruments, and comprises an inner core assembly, a collagen column, a pushing assembly and a protective sleeve assembly, the inner core assembly comprises a core wire and a deformation part, the core wire penetrates through the deformation part, the far end of the deformation part is fixedly connected with the far end of the core wire, and the near end of the deformation part is slidably connected with the core wire; the collagen column is coated outside the core wire; a collagen slot is formed in the side wall of the collagen column; the pushing assembly comprises a pushing pipe arranged outside the core wire in a sleeving mode, and the far end of the pushing pipe abuts against the near end of the collagen column; the protective sleeve assembly comprises a fixed sleeve, and the fixed sleeve is arranged outside the pushing pipe and the collagen column in a sliding and sleeving manner; according to the blood vessel crevasse closing device, a blood vessel crevasse can be effectively blocked, positioning is accurate, operation is easy, and the operation time of a crevasse closing operation can be obviously shortened; in addition, the blood vessel crevasse closing device is simple in structure, low in manufacturing cost and convenient to popularize and use.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a device for closing a vascular rupture. Background Art

[0002] Blood vessels are the natural channels for blood to reach various parts of the human body. They are also the preferred route for minimally invasive treatment and the irreplaceable route for super-selective diagnosis and treatment of many diseases. However, closing the puncture site after vascular intervention, preventing hematoma and rebleeding at the puncture site, and requiring patients to stay in bed for a long time after surgery have always been a thorny problem that has troubled medical staff and has not yet been well solved internationally.

[0003] Currently, various existing vascular puncture port closure devices cannot meet the clinical requirements for rapid hemostasis, easy operation, no foreign matter left after surgery, and tight puncture port closure. Although some temporary puncture port closure hemostats can help medical staff to quickly stop bleeding and relieve and facilitate the subsequent closure of vascular puncture ports, they cannot directly and quickly complete the treatment of vascular puncture ports, and need to be pulled out and re-pressurized 4-5 hours after timely hemostasis control, which is not conducive to the healing of puncture ports.

[0004] Based on this, the inventor designed a new structure to solve the above technical problems. Summary of the invention

[0005] The purpose of the present invention is to provide a vascular rupture closing device to solve the problems existing in the prior art, which can effectively block the vascular rupture, accurately position and simply operate, and can significantly shorten the operation time of the rupture closing surgery; in addition, the vascular rupture closing device in the present invention has a simple structure and low manufacturing cost, and is easy to promote and use.

[0006] To achieve the above object, the present invention provides the following solutions: A device for closing a vascular rupture, comprising an inner core component, a collagen column, a push component and a protective sleeve component; the inner core component comprises a core wire and a deformable member, the core wire is inserted into the deformable member, the distal end of the deformable member is fixedly connected to the distal end of the core wire, the proximal end of the deformable member is slidably connected to the core wire, and the proximal end of the core wire is used to apply a tensile force to cause the deformable member to produce a compression deformation and temporarily block the vascular rupture; the collagen column is coated on the outside of the core wire, and the distal end of the collagen column abuts the proximal end of the deformable member; a collagen slit penetrating the side wall of the collagen column is provided, and the collagen slit is parallel to the axial direction of the collagen column; the push component comprises a push tube sleeved on the outside of the core wire, and the distal end of the push tube abuts the proximal end of the collagen column; the protective sleeve component comprises a fixed sleeve, and the fixed sleeve is slidably sleeved on the outside of the push tube and the collagen column, and can wrap the collagen column or expose the collagen column.

[0007] As one embodiment, it also includes a handle assembly, which includes an inner pull rod sleeve and an outer pull rod sleeve, the inner pull rod sleeve is slidably sleeved on the outside of the core wire, and the distal end of the inner pull rod sleeve is detachably connected to the proximal end of the push tube; the outer pull rod sleeve is slidably sleeved on the outside of the inner pull rod sleeve, an annular flange is provided on the distal inner wall of the outer pull rod sleeve, and at least two annular grooves are spaced apart on the proximal outer wall of the inner pull rod sleeve, and the annular flanges are snap-fitted with the annular grooves; the proximal end of the outer pull rod sleeve is fixedly connected to the proximal end of the core wire.

[0008] As an implementation manner, the distal end of the inner pull rod sleeve and the proximal end of the push tube are connected by magnet adsorption.

[0009] As one embodiment, the handle assembly also includes a plug and a reinforcement tube, the reinforcement tube is sleeved on the core wire, the proximal end of the reinforcement tube is fixedly connected to the core wire, and the proximal end of the reinforcement tube is fixedly connected to the proximal end of the outer pull rod sleeve through the plug; the distal end of the reinforcement tube is located inside the inner pull rod sleeve.

[0010] As an embodiment, the handle assembly further comprises a handle tube, the proximal end of the handle tube is fixedly sleeved outside the inner pull rod sleeve, and the distal end of the handle tube is slidably sleeved outside the proximal end of the push tube.

[0011] As one embodiment, the inner core assembly includes a core tube sleeved on the outside of the core wire, and the core tube is fixedly connected to the proximal end of the deformable member; the push tube is slidably sleeved on the outside of the core tube.

[0012] As one embodiment, the deformable member includes a cylindrical metal woven mesh and a coating applied on the surface of the metal woven mesh, the proximal end and the distal end of the metal woven mesh are respectively connected to a first fixing member and a second fixing member, the second fixing member is fixedly connected to the distal end of the core wire, and the first fixing member is fixedly connected to the core tube.

[0013] As an embodiment, a sleeve slit is provided on the distal side wall of the fixed sleeve, the sleeve slit is arranged parallel to the axial direction of the fixed sleeve, and the length of the sleeve slit is not less than the length of the collagen column.

[0014] As one embodiment, a first proximal boss and a first distal boss, both of which are annular, are axially arranged on the outer wall of the push tube, and an annular first limiting boss is arranged on the inner wall of the fixed sleeve, the inner wall of the first limiting boss is fitted with the outer wall of the push tube, and the first limiting boss is located between the first proximal boss and the first distal boss; when the first limiting boss abuts against the first proximal boss, the distal end of the fixed sleeve is interference fit with the first distal boss; when the first limiting boss abuts against the first distal boss, the distal end of the fixed sleeve is not close to the distal end of the collagen column.

[0015] As one embodiment, a second proximal boss and a second distal boss, both of which are annular, are axially arranged on the outer wall of the fixed sleeve, and the protective sleeve assembly also includes an outer tube slidably sleeved on the outside of the fixed sleeve; an annular second limiting boss is arranged on the inner wall of the outer tube, the inner wall of the second limiting boss is in contact with the outer wall of the fixed sleeve, the second limiting boss is located between the second proximal boss and the second distal boss, and when the second limiting boss abuts against the second proximal boss, the distal end of the outer tube is interference fit with the second distal boss; when the second limiting boss abuts against the second distal boss, the distal end of the outer tube is located on the distal side of the distal end of the fixed sleeve; a developing ring is arranged on the outer tube, and when the second limiting boss abuts against the second distal boss, the developing ring corresponds to the position of the collagen column.

[0016] Compared with the prior art, the present invention has the following technical effects: The vascular rupture closing device of the present invention can effectively block vascular ruptures, and has accurate positioning and simple operation, which can significantly shorten the operation time of the rupture closing surgery; in addition, the vascular rupture closing device of the present invention has a simple structure and low manufacturing cost, and is easy to promote and use.

[0017] Other technical solutions in the present invention also have the following technical effects: The present invention can fix the core wire by providing the clamped inner pull rod sleeve and the outer pull rod sleeve, which is convenient for maintaining the compression deformation state of the deformable part and can free the hands of the operator to perform other operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 This is a schematic diagram of the overall structure of a blood vessel rupture closing device in one embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the side section structure; Figure 3 for Figure 2 A partial enlarged view of the middle area A; Figure 4 for Figure 2 A partial enlarged view of the middle area B; Figure 5 for Figure 2 A partial enlarged view of the middle area C; Figure 6 for Figure 2 A partial enlarged view of the middle area D; Figure 7 for Figure 2 A partial enlarged view of the middle area E; Figure 8 for Figure 2 A partial enlarged view of the middle area F; Fig. 9 for Figure 2 A partial enlarged view of the middle area G; Fig.10 It is a schematic structural diagram of an inner pull rod sleeve in one embodiment of the present invention; Fig.11 This is a schematic diagram of the structure of a push tube in one embodiment of the present invention; Fig.12 This is a schematic diagram of the structure of a fixed sleeve in one embodiment of the present invention; Fig.13 for Fig.12 A partial enlarged view of the middle area H; Fig.14 This is a schematic diagram of the structure of a collagen column in one embodiment of the present invention; Description of reference numerals: 1. Collagen column; 2. Core wire; 3. Collagen slit; 4. Push tube; 5. Fixed sleeve; 6. Soft distal end; 7. Connecting tube; 8. Developing ring; 9. Inner pull rod sleeve; 10. Outer pull rod sleeve; 11. Annular receiving groove; 12. Annular flange; 13. Annular groove; 14. Plug; 15. Reinforcement tube; 16. Handle tube; 17. Core tube; 18. Metal braided mesh; 19. Coating; 20. First fixing member; 21. Second fixing member; 22. Curing glue connector; 23. Sleeve slit; 24. First proximal boss; 25. First distal boss; 26. First limiting boss; 27. Sleeve proximal section; 28. Sleeve distal section; 29. ​​Second proximal boss; 30. Second distal boss; 31. Outer tube. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The purpose of the present invention is to provide a vascular rupture closing device to solve the problems existing in the prior art, which can effectively block the vascular rupture, accurately position and simply operate, and can significantly shorten the operation time of the rupture closing surgery; in addition, the vascular rupture closing device in the present invention has a simple structure and low manufacturing cost, and is easy to promote and use.

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] like Figure 1 to Figure 14As shown, this embodiment provides a device for closing a vascular rupture, including an inner core component, a collagen column 1, a push component and a protective sleeve component; wherein the inner core component includes a core wire 2 and a deformable member, the core wire 2 is inserted into the deformable member, the distal end of the deformable member is fixedly connected to the distal end of the core wire 2, the proximal end of the deformable member is slidably connected to the core wire 2, and the proximal end of the core wire 2 is used to apply a tensile force to cause the deformable member to produce a compression deformation to temporarily block the vascular rupture. The proximal end mentioned in this embodiment refers to the end close to the operator, and the distal end refers to the end away from the operator. The collagen column 1 is coated on the outside of the core wire 2, and the collagen column 1 is cylindrical and made of solid collagen. The distal end of the collagen column 1 abuts against the proximal end of the deformable member; the side wall of the collagen column 1 is provided with a collagen slit 3 that penetrates the side wall, and the collagen slit 3 is arranged parallel to the axial direction of the collagen column 1. The pushing assembly includes a pushing tube 4 which is sleeved on the outside of the core wire 2, and the distal end of the pushing tube 4 abuts against the proximal end of the collagen column 1; the protective sleeve assembly includes a fixed sleeve 5 which is slidably sleeved on the outside of the pushing tube 4 and the collagen column 1, and can wrap the collagen column 1 or leave the collagen column 1 exposed.

[0024] When in use, the distal end of the vascular rupture closing device is placed into the human body along the sheath tube, and the deformable member in the inner core assembly enters the blood vessel from the vascular rupture; then the core wire 2 is pulled backward (i.e., in the proximal direction), and the core wire 2 drives the distal end of the deformable member to gradually approach the proximal end of the deformable member, so that the deformable member is compressed and deformed into an umbrella shape, and the vascular rupture closing device is moved backward as a whole, so that the umbrella-shaped deformable member abuts against the rupture position of the inner wall of the blood vessel, temporarily blocking the vascular rupture on the one hand, and fixing the position of the deformable member on the other hand. Ensure the tension of the core wire 2 to avoid the reset of the deformable member, then pull the fixed sleeve 5 backward to expose the collagen column 1 outside the fixed sleeve 5, keep the fixed sleeve 5 immobile, and then push the push tube 4 forward (i.e., in the distal direction), and the push tube 4 pushes the collagen column 1 forward; because the collagen slit 3 is provided on the side wall of the collagen column 1, the collagen column 1 gradually expands into a sheet under the interference of the outer wall of the blood vessel during the pushing process, and finally applies it to the vascular rupture. Finally, the core wire 2 is relaxed, the deformable member is reset, and the vascular rupture closing device is completely withdrawn from the human body. The process of withdrawing the deformable member from the vascular rupture will not affect the subsequent blocking of the vascular rupture by collagen; and after the collagen blocks the vascular rupture, it will be gradually absorbed by the human body.

[0025] Therefore, the vascular rupture closing device in this embodiment can effectively block the vascular rupture, and has accurate positioning and simple operation, which can significantly shorten the operation time of the rupture closure surgery; in addition, the vascular rupture closing device in this embodiment has a simple structure and low manufacturing cost, and is easy to promote and use.

[0026] In this embodiment, the distal portion of the push tube 4 is slightly different from the middle portion and the proximal portion. The material of the distal portion is softer and more flexible, and it can better adapt to curved pipelines, making it easier for the push tube 4 to move forward. Specifically, the soft distal end 6 is connected to the middle end of the push tube 4 through a connecting tube 7.

[0027] In order to facilitate the operator to hold the device in hand to perform the wound closure surgery, the vascular wound closure device in this embodiment also includes a handle assembly, and the handle assembly includes an inner pull rod sleeve 9 and an outer pull rod sleeve 10. The inner pull rod sleeve 9 is slidably sleeved on the outside of the core wire 2, and the distal end of the inner pull rod sleeve 9 is detachably connected to the proximal end of the push tube 4. The distal end of the inner pull rod sleeve 9 is connected to the proximal end of the push tube 4 in order to ensure the integrity of the vascular wound closure device, and the detachability is to facilitate the use of the push tube 4 to push the collagen column 1. In order to facilitate the detachable connection between the two, in this embodiment, an annular receiving groove 11 is provided at the distal end of the inner pull rod sleeve 9 and the proximal end of the push tube 4, and magnets with opposite magnetic properties are provided in the two annular receiving grooves 11. The suction force of the magnets is used to connect the inner pull rod sleeve 9 and the push tube 4, such as Figure 5 The outer rod sleeve 10 is slidably sleeved on the outside of the inner rod sleeve 9, and an annular flange 12 is provided on the inner wall of the distal end of the outer rod sleeve 10, and at least two annular grooves 13 are provided on the outer wall of the proximal end of the outer rod sleeve 10, and the distance between the two annular grooves 13 corresponds to the distance required to pull the core wire 2 when the deformable member deforms; the annular flange 12 and the annular groove 13 are snap-fitted, as shown in FIG. Figure 4 The proximal end of the outer pull rod sleeve 10 is fixedly connected to the proximal end of the core wire 2 .

[0028] like Fig.10 As shown, in this embodiment, two annular grooves 13 are provided on the inner pull rod sleeve 9. When the deformable member is in a natural state, the annular flange 12 on the outer pull rod sleeve 10 is located in the annular groove 13 on the distal side. When the operator holds the inner pull rod sleeve 9 with one hand and pulls the outer pull rod sleeve 10 with the other hand, the annular flange 12 is transferred from the annular groove 13 on the distal side to the annular groove 13 on the proximal side, the core wire 2 is tightened, and the deformable member is deformed into an umbrella shape. When pushing the push tube 4 forward, just hold the inner pull rod sleeve 9. Therefore, this embodiment can fix the core wire 2 by providing the inner pull rod sleeve 9 and the outer pull rod sleeve 10 that are clamped together, which is convenient for maintaining the compression deformation state of the deformable member and can free the operator's hands to perform other operations.

[0029] Since the diameter of the core wire 2 in this embodiment is very small, it is difficult to directly fix it to the outer pull rod sleeve 10. Figure 3As shown, in this embodiment, the handle assembly also includes a plug 14 and a reinforcing tube 15, the reinforcing tube 15 is sleeved on the core wire 2, the proximal end of the reinforcing tube 15 is fixedly connected to the core wire 2, and the proximal end of the reinforcing tube 15 is fixedly connected to the proximal end of the outer pull rod sleeve 10 through the plug 14; the distal end of the reinforcing tube 15 is located inside the inner pull rod sleeve 9. Specifically, in this embodiment, the plug 14, the reinforcing tube 15 and the outer pull rod sleeve 10 are all made of stainless steel, the core wire 2 is made of nickel-titanium alloy, and the plug 14, the reinforcing tube 15, the core wire 2 and the outer pull rod sleeve 10 are connected by welding.

[0030] As one embodiment, the handle assembly further includes a handle tube 16, which can be made of stainless steel. The proximal end of the handle tube 16 is fixedly sleeved on the outside of the inner pull rod sleeve 9, and there is a gap in the axial direction between the proximal end of the handle tube 16 and the distal end of the outer pull rod sleeve 10. The distal end of the handle tube 16 is slidably sleeved on the proximal end of the push tube 4, and the inner diameter is adapted to the outer diameter of the push tube 4 and the outer diameter of the inner pull rod sleeve 9. The middle part of the push tube 4 is exposed to facilitate the operator to push by hand. After the handle tube 16 is set, the operator can hold the handle tube 16 to operate, and the handle tube 16 can also guide the push tube 4, making it more convenient for it to push.

[0031] As an embodiment, the inner core assembly includes a core tube 17 sleeved on the outside of the core wire 2, and the core tube 17 is fixedly connected to the proximal end of the deformable member; the push tube 4 is slidably sleeved on the outside of the core tube 17. The proximal end of the core tube 17 can extend into the inner pull rod sleeve 9 and is spaced from the distal end of the reinforcement tube 15.

[0032] As an embodiment, the deformable member includes a cylindrical metal braided mesh 18 and a coating 19 applied on the surface of the metal braided mesh 18. The metal braided mesh 18 is woven from multiple metal filaments made of nickel-titanium material, and its function is to form an umbrella-shaped structure after contraction for temporarily blocking the rupture of the blood vessel; the coating 19 is a polyurethane film, which is attached to the metal braided mesh 18 to form a sealed membrane structure to seal the hole gaps on the metal braided mesh 18. In this embodiment, the two ends of the cylindrical metal braided mesh 18 are tightened to form a small diameter end. The proximal end and the distal end of the metal braided mesh 18 are respectively connected to the first fixing member 20 and the second fixing member 21, the second fixing member 21 is fixedly connected to the distal end of the core wire 2, and the first fixing member 20 is fixedly connected to the core tube 17. The first fixing member 20 and the second fixing member 21 can both be made of stainless steel. A curing glue connector 22 is also provided at the proximal end of the first fixing member 20. The proximal surface of the curing glue connector 22 is a spherical surface or a quasi-spherical surface. The proximal surface of the curing glue connector 22 abuts against the distal end of the collagen column 1, so that the collagen column 1 can be unfolded under the interference of the curing glue connector 22 during the pushing process.

[0033] As an embodiment, a sleeve slit 23 is provided on the distal side wall of the fixed sleeve 5, and the sleeve slit 23 is arranged parallel to the axial direction of the fixed sleeve 5, and the length of the sleeve slit 23 is not less than the length of the collagen column 1. When placing the collagen column 1, the distal end of the fixed sleeve 5 can be opened from the slit, and then the collagen column 1 is sleeved outside the core tube 17, and then the fixed sleeve 5 wraps the collagen column 1.

[0034] As an embodiment, a first proximal boss 24 and a first distal boss 25, both of which are annular, are axially arranged on the outer wall of the push tube 4, and an annular first limiting boss 26 is arranged on the inner wall of the fixed sleeve 5. The inner wall of the first limiting boss 26 is in contact with the outer wall of the push tube 4, and the first limiting boss 26 is located between the first proximal boss 24 and the first distal boss 25, which can limit the moving range of the fixed sleeve 5 on the push tube 4. When the first limiting boss 26 abuts against the first proximal boss 24, the distal end of the fixed sleeve 5 and the first distal boss 25 are interference-fitted to achieve plug-in fixation; when the first limiting boss 26 abuts against the first distal boss 25, the distal end of the fixed sleeve 5 is not close to the distal end of the collagen column 1, which can protect the collagen column 1. In order to facilitate the arrangement of the first proximal boss 24 and the first distal boss 25 on the outer wall of the push tube 4, the first proximal boss 24 and the first distal boss 25 are both tubular structures, the inner diameters of which are equal to the outer diameter of the push tube 4, and are fixed to the outer wall of the push tube 4 by bonding, so as to reduce the difficulty of integrally forming the push tube 4. Similarly, the first limiting boss 26 is also a tubular structure, the inner diameter of which is equal to the outer diameter of the push tube 4, and the outer diameter is equal to the inner diameter of the fixed sleeve 5, and is fixed to the inner wall of the fixed sleeve 5 by bonding. In addition, the fixed sleeve 5 is arranged in sections at the arrangement position of the first limiting boss 26, which is divided into a sleeve distal section 28 and a sleeve proximal section 27, and the first limiting boss 26 is arranged at the joint position of the sleeve distal section 28 and the sleeve proximal section 27; in this embodiment, the sleeve proximal section 27 is made of metal material, and the sleeve distal section 28 is made of polymer material. After the fixed sleeve 5 is arranged in sections, the difficulty of bonding each section of the pipe body can be further reduced.

[0035] As an embodiment, the outer wall of the fixed sleeve 5 is provided with a second proximal boss 29 and a second distal boss 30, both of which are annular, along the axial direction. The protective sleeve assembly also includes an outer tube 31 that is slidably sleeved on the outside of the fixed sleeve 5. The outer tube 31 plays a role in protecting the internal components such as the fixed sleeve 5 and the collagen column 1. When the collagen column 1 is installed on the outside of the core tube 17, since the fixed sleeve 5 has a sleeve slit 23, it is difficult to maintain the cylindrical shape of the collagen column 1 by the fixed sleeve 5 alone. After the outer sleeve is sleeved on the outside of the fixed sleeve 5, this technical problem can be solved and the cylindrical shape of the collagen column 1 can be maintained. An annular second limiting boss is provided on the inner wall of the outer tube 31. The inner wall of the second limiting boss is in contact with the outer wall of the fixed sleeve 5. The second limiting boss is located between the second proximal boss 29 and the second distal boss 30, and can limit the movement range of the outer tube 31 on the fixed sleeve 5. When the second limiting boss abuts against the second proximal boss 29, the distal end of the outer tube 31 is interference fit with the second distal boss 30 to achieve plug-in fixation; when the second limiting boss abuts against the second distal boss 30, the distal end of the outer tube 31 is located at the distal side of the distal end of the fixed sleeve 5. In order to facilitate the arrangement of the second proximal boss 29 and the second distal boss 30 on the outer wall of the fixed sleeve 5, the second proximal boss 29 and the second distal boss 30 are both tubular structures, the inner diameters of which are equal to the outer diameter of the fixed sleeve 5, and are fixed to the outer wall of the fixed sleeve 5 by bonding, so as to reduce the difficulty of integrally forming the fixed sleeve 5. Similarly, the second limiting boss is also a tubular structure, the inner diameter of which is equal to the outer diameter of the fixed sleeve 5, and the outer diameter is equal to the inner diameter of the outer tube 31, and is fixed to the inner wall of the outer tube 31 by bonding. In addition, the outer tube 31 is divided into a distal section and a proximal section at the location where the second limiting boss is set. The second limiting boss is set at the joint between the distal section and the proximal section of the outer tube. In this embodiment, the proximal section of the outer tube is made of metal, and the distal section of the outer tube is made of polymer material. After the outer tube 31 is divided into sections, the difficulty of bonding each section of the tube body can be further reduced. The segmentation method of the outer tube 31 is the same as the segmentation method of the fixed sleeve 5, and the structure is the same as the fixed sleeve 5. Fig.13 similar.

[0036] When in use, the outer tube 31 is pulled backward, and the proximal end of the outer tube 31 is interference fit with the second proximal boss 29 on the fixed sleeve 5, and the second limiting boss is in contact with the second proximal boss 29, and then the outer tube 31 is pulled backward continuously until the proximal end of the fixed sleeve 5 is interference fit with the first proximal boss 24 on the push tube 4, and the first limiting boss 26 is in contact with the first proximal boss 24, and then the outer tube 31 is stopped from being pulled, and at this time, the collagen column 1 is completely exposed. The operator holds the handle tube 16 with one hand and the push tube 4 or the outer tube 31 with the other hand and pushes forward until the collagen column 1 is pushed to the vascular rupture, so as to achieve the occlusion of the vascular rupture.

[0037] As an implementation, in this embodiment, a developing ring 8 is provided on the outer tube 31. When the second limiting boss abuts against the second distal boss 30, the developing ring 8 corresponds to the position of the collagen column 1; specifically, the developing ring 8 can be radially aligned with the distal end or proximal end of the collagen column 1. The developing ring 8 is made of platinum-iridium alloy and fixed on the outer tube 31 by forging; the developing ring 8 can be developed under X-rays, so that the operator can find the position of the collagen column 1.

[0038] Adaptive changes made according to actual needs are all within the protection scope of the present invention.

[0039] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A blood vessel rupture closure device, characterized in that: include: An inner core component, the inner core component comprises a core wire and a deformable member, the core wire is inserted into the deformable member, the distal end of the deformable member is fixedly connected to the distal end of the core wire, the proximal end of the deformable member is slidably connected to the core wire, and the proximal end of the core wire is used to apply a tensile force to compress and deform the deformable member to temporarily block the rupture of the blood vessel; A collagen column, wherein the collagen column is coated on the outside of the core wire, and the distal end of the collagen column abuts against the proximal end of the deformable member; a collagen slit penetrating the side wall of the collagen column is provided, and the collagen slit is provided parallel to the axial direction of the collagen column; A pushing assembly, the pushing assembly comprising a pushing tube sleeved outside the core wire, the distal end of the pushing tube abutting against the proximal end of the collagen column; And a protective sleeve assembly, the protective sleeve assembly includes a fixed sleeve, the fixed sleeve is slidably sleeved on the outside of the push tube and the collagen column, and can wrap the collagen column or expose the collagen column.

2. The blood vessel rupture closure device according to claim 1, characterized in that: It also includes a handle assembly, which includes an inner pull rod sleeve and an outer pull rod sleeve, the inner pull rod sleeve is slidably sleeved on the outside of the core wire, and the distal end of the inner pull rod sleeve is detachably connected to the proximal end of the push tube; the outer pull rod sleeve is slidably sleeved on the outside of the inner pull rod sleeve, an annular flange is provided on the distal inner wall of the outer pull rod sleeve, and at least two annular grooves are spaced apart on the proximal outer wall of the inner pull rod sleeve, and the annular flanges are snap-fitted with the annular grooves; the proximal end of the outer pull rod sleeve is fixedly connected to the proximal end of the core wire.

3. The blood vessel rupture closure device according to claim 2, characterized in that: The distal end of the inner pull rod sleeve and the proximal end of the push tube are connected by magnet adsorption.

4. The blood vessel rupture closure device according to claim 2, characterized in that: The handle assembly also includes a plug and a reinforcement tube. The reinforcement tube is sleeved on the core wire, the proximal end of the reinforcement tube is fixedly connected to the core wire, and the proximal end of the reinforcement tube is fixedly connected to the proximal end of the outer pull rod sleeve through the plug; the distal end of the reinforcement tube is located inside the inner pull rod sleeve.

5. The blood vessel rupture closure device according to claim 2, characterized in that: The handle assembly also includes a handle tube, the proximal end of the handle tube is fixedly sleeved outside the inner pull rod sleeve, and the distal end of the handle tube is slidably sleeved outside the proximal end of the push tube.

6. The blood vessel rupture closing device according to any one of claims 1 to 5, characterized in that: The inner core component comprises a core tube sleeved on the outside of the core wire, wherein the core tube is fixedly connected to the proximal end of the deformable member; and the push tube is slidably sleeved on the outside of the core tube.

7. The blood vessel rupture closure device according to claim 6, characterized in that: The deformable member includes a cylindrical metal woven mesh and a coating applied on the surface of the metal woven mesh. The proximal end and distal end of the metal woven mesh are respectively connected to a first fixing member and a second fixing member. The second fixing member is fixedly connected to the distal end of the core wire, and the first fixing member is fixedly connected to the core tube.

8. The blood vessel rupture closure device according to claim 1, characterized in that: A sleeve slit is arranged on the distal side wall of the fixed sleeve, the sleeve slit is arranged parallel to the axial direction of the fixed sleeve, and the length of the sleeve slit is not less than the length of the collagen column.

9. The blood vessel rupture closing device according to claim 1, characterized in that: A first proximal boss and a first distal boss, both of which are annular, are axially arranged on the outer wall of the push tube, and an annular first limiting boss is arranged on the inner wall of the fixed sleeve, the inner wall of the first limiting boss is in contact with the outer wall of the push tube, and the first limiting boss is located between the first proximal boss and the first distal boss; when the first limiting boss abuts against the first proximal boss, the distal end of the fixed sleeve has an interference fit with the first distal boss; when the first limiting boss abuts against the first distal boss, the distal end of the fixed sleeve is not close to the distal end of the collagen column.

10. The blood vessel rupture closing device according to claim 9, characterized in that: A second proximal boss and a second distal boss, both of which are annular, are axially arranged on the outer wall of the fixed sleeve, and the protective sleeve assembly also includes an outer tube slidably sleeved on the outside of the fixed sleeve; an annular second limiting boss is arranged on the inner wall of the outer tube, the inner wall of the second limiting boss is fitted with the outer wall of the fixed sleeve, the second limiting boss is located between the second proximal boss and the second distal boss, and when the second limiting boss abuts against the second proximal boss, the distal end of the outer tube is interference fit with the second distal boss; when the second limiting boss abuts against the second distal boss, the distal end of the outer tube is located on the distal side of the distal end of the fixed sleeve; a developing ring is arranged on the outer tube, and when the second limiting boss abuts against the second distal boss, the developing ring corresponds to the position of the collagen column.

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