WO2019101077A1 - Cathéter de dérivation destiné à renforcer la stabilité ainsi que cathéter - Google Patents

Cathéter de dérivation destiné à renforcer la stabilité ainsi que cathéter Download PDF

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Publication number
WO2019101077A1
WO2019101077A1 PCT/CN2018/116544 CN2018116544W WO2019101077A1 WO 2019101077 A1 WO2019101077 A1 WO 2019101077A1 CN 2018116544 W CN2018116544 W CN 2018116544W WO 2019101077 A1 WO2019101077 A1 WO 2019101077A1
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WIPO (PCT)
Prior art keywords
blood flow
flow port
blood vessel
sealing film
main
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PCT/CN2018/116544
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English (en)
Chinese (zh)
Inventor
王永胜
李安伟
尚里曼
Original Assignee
杭州唯强医疗科技有限公司
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Priority claimed from CN201810899833.4A external-priority patent/CN109833116B/zh
Application filed by 杭州唯强医疗科技有限公司 filed Critical 杭州唯强医疗科技有限公司
Publication of WO2019101077A1 publication Critical patent/WO2019101077A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels

Definitions

  • the invention relates to the field of implantable blood vessels, in particular to a blood vessel shunt frame for enhancing stability and a blood vessel support provided with the blood vessel shunt frame.
  • Aortic aneurysm refers to a local or diffuse abnormal expansion of the aortic wall, which causes symptoms by pressing the surrounding organs, and the tumorous rupture is its main risk. Often occurs in the ascending aorta arch, thoracic descending aorta, thoracic and abdominal aorta, and abdominal aorta. Aortic aneurysm can be divided into true aortic aneurysm and pseudo aortic aneurysm according to structure. Aortic aneurysm causes an increase in intravascular pressure, so it is progressively enlarged. If it develops for a long time, it will eventually rupture. The larger the tumor, the more likely it is to rupture. According to statistics, 90% of thoracic aortic aneurysms die within 5 years without surgery, and 75% of abdominal aortic aneurysms die within 5 years.
  • Aortic dissection is another serious aortic disease.
  • Aortic dissection refers to the destruction of the medial thoracic aorta, hemorrhage in the vessel wall, and blood entering between the media and the adventitia of the vessel wall. Due to the impact of blood flow, once the aortic dissection is formed, the tear can be extended in the direction of blood flow, the interlayer and the false lumen are enlarged, and the true cavity is compressed. Therefore, the possible risks of patients with aortic dissection include: (1) the threat of complete rupture of the blood vessel, and the death rate is extremely high once the blood vessel is completely ruptured; (2) the interlayer is gradually enlarged, and the true cavity is compressed to provide blood supply to the distal end of the blood vessel. cut back.
  • the aortic dissection is secondary to a thoracic aortic aneurysm or coexisting with an aortic aneurysm.
  • Oxford vascular disease studies in the United Kingdom have shown that the incidence of aortic dissection in the natural population is about 6/100,000 per year, more men than women, and the average age of onset is 63 years.
  • the incidence of aortic dissection in China is much higher than that in Europe and the United States, and the age of onset is younger.
  • Aortic diseases may involve branch arteries. Once the branch arteries are involved, it is difficult to solve them through interventional methods.
  • intra-arterial treatment has been carried out at home and abroad, that is, the minimally invasive method is used to treat the arterial disease and improve blood supply by inserting a graft into the diseased artery into the artery, thereby achieving therapeutic purposes.
  • the arterial stent in the vascular lumen is composed of a tubular rigid wire stent and a polymer film fixed to the outside of the tubular rigid wire stent, and the tubular rigid wire stent is folded by a flexible rigid wire through a Z-shape.
  • a stent graft Enclosed in a ring shape, and then a plurality of rings are stitched or bonded together with the polymer film to form a stent graft.
  • the stent graft is axially compressed and loaded into the conveyor, and the conveyor passes through the smaller femoral artery.
  • the radial artery and the radial artery are sent to the diseased artery and then released.
  • the elastic force of the wire stent automatically returns to a straight tubular shape and is closely attached to the inner wall of the aorta, thereby isolating the arterial lesion from the blood flow, thereby achieving the therapeutic purpose.
  • the brackets commonly used in the treatment of arterial branching include a chimney bracket, an integrated multi-branch bracket, and a window-opening bracket. These brackets are limited by the structure of the bracket, and often require temporary customization, or are prone to problems such as endoleaks, and Some of the split blocks of the plurality of modules appearing include a plurality of split ports connected to the branch brackets separated by a film, and a sealing film is disposed on an end surface of the film holder away from the heart to prevent An internal leak occurs between the plurality of split ports on the end face.
  • the sealing film since the material of the sealing film is soft, the sealing film is easy to tilt toward the split port, thereby interfering with or blocking the split port, and even blocking the split port; on the one hand, the blood flow of the branch blood vessel is liable to be unsatisfactory; On the other hand, because the sealing film blocks the shunting port, it is difficult to find the shunting port corresponding to each branch when releasing a plurality of branching brackets, which increases the difficulty and time for applying the multi-chamber type stent graft for endovascular treatment, and even It is easy to cause failure of its endovascular treatment.
  • the present invention provides a blood vessel shunt frame for enhancing stability, comprising a main body tube, at least one end of which is provided with a sealing film, and a main blood flow port is opened on the sealing film. And at least one blood flow port, the sealing film is provided with at least one support member, and at least one of the support members is connected between the main blood flow port and at least one edge adjacent to the second blood flow port .
  • the invention also provides a blood vessel stent comprising a main body bracket, a branch blood vessel, and a blood vessel shunt frame, the blood vessel shunt frame comprising a main body tube, at least one end of the main body tube is provided with a sealing film, and the sealing film is opened Having a main blood flow port and at least one blood flow port, the sealing film is provided with at least one support member, at least one of the support members being connected to the main blood flow port adjacent to at least one of the secondary blood flow ports Between the two edges.
  • One end of the main body bracket is inserted into the main body tube of the blood vessel shunt frame through a main blood flow port on the sealing film, and one end of the branch blood vessel passes through the secondary blood flow port on the sealing film Inserted into the daughter tube of the blood vessel shunt frame.
  • the blood vessel shunt frame provided by the present invention is provided with at least one support member on the sealing film of the main body tube, and the at least one support member is connected to the main blood flow port adjacent to at least one of the secondary blood flow ports Between the two edges. Therefore, the support member can support the sealing film, and the sealing film can be fully spread to prevent the sealing film from being folded and moved toward the main blood flow port or the secondary blood flow port, thereby preventing the
  • the sealing film interferes with, blocks or blocks the secondary blood flow port or the main blood flow port, on the one hand, it is easy to cause blood flow of the branch blood vessel; on the other hand, because the sealing film blocks the shunt mouth, the release is much When branching the stent, it is difficult to find the corresponding splitting port of each branch, which increases the difficulty and time for the intraluminal treatment with the multi-cavity stent graft, and even leads to the failure of the endovascular treatment.
  • FIG. 1 is a schematic perspective view of a blood vessel shunt frame according to a first embodiment of the present invention.
  • FIG. 2 is a schematic perspective view showing a three-dimensional structure in which a daughter tube is disposed on a blood vessel shunt frame according to a first embodiment of the present invention.
  • FIG 3 is a three-dimensional structural diagram of one of the annular wave-shaped support rods of the blood vessel shunt frame according to the first embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a support member of a blood vessel shunt frame according to a first embodiment of the present invention.
  • FIG. 5 is a schematic perspective structural view of a blood vessel shunt frame according to a second embodiment of the present invention.
  • FIG. 6 is a schematic perspective view of another perspective of FIG. 5.
  • FIG. 6 is a schematic perspective view of another perspective of FIG. 5.
  • FIG. 7 is a schematic perspective structural view of a blood vessel shunt frame according to a third embodiment of the present invention.
  • FIG. 8 is a schematic perspective view of another perspective of FIG. 7.
  • FIG. 8 is a schematic perspective view of another perspective of FIG. 7.
  • FIG. 9 is a schematic perspective structural view of a blood vessel shunt frame according to a fourth embodiment of the present invention.
  • FIG. 10 is a schematic perspective structural view of a blood vessel shunt frame according to a fifth embodiment of the present invention.
  • Figure 11 is a perspective view showing the structure of a blood vessel shunt frame according to a sixth embodiment of the present invention.
  • FIG. 12 is a schematic structural view of a support member of a blood vessel shunt frame according to a sixth embodiment of the present invention.
  • Figure 13 is a perspective view showing the structure of a blood vessel shunt frame according to a seventh embodiment of the present invention.
  • FIG. 14 is a schematic structural view of a support member of a blood vessel shunt frame according to a seventh embodiment of the present invention.
  • Figure 15 is a perspective view showing the structure of a blood vessel shunt frame according to an eighth embodiment of the present invention.
  • Figure 16 is a perspective view showing the structure of a blood vessel shunt frame according to a ninth embodiment of the present invention.
  • Figure 17 is a perspective view showing the structure of a blood vessel shunt frame according to a tenth embodiment of the present invention.
  • Figure 18 is a perspective view showing the structure of a blood vessel shunt frame according to an eleventh embodiment of the present invention.
  • Figure 19 is a perspective view showing the structure of a blood vessel shunt frame according to a twelfth embodiment of the present invention.
  • Figure 20 is a perspective view showing the structure of a blood vessel shunt frame according to a thirteenth embodiment of the present invention.
  • Figure 21 is a perspective view showing the structure of a blood vessel shunt frame according to a fourteenth embodiment of the present invention.
  • Figure 22 is a perspective view showing the structure of a blood vessel shunt frame according to a fifteenth embodiment of the present invention.
  • Figure 23 is a schematic view showing the structure of a display structure of a blood vessel shunt frame according to a fifteenth embodiment of the present invention.
  • Figure 24 is a perspective view showing the structure of a blood vessel shunt frame according to a sixteenth embodiment of the present invention.
  • Figure 25 is a perspective view showing the structure of a blood vessel shunt frame according to a seventeenth embodiment of the present invention.
  • Figure 26 is a perspective view showing the structure of a blood vessel shunt frame according to an eighteenth embodiment of the present invention.
  • Figure 27 is a perspective view showing the structure of a blood vessel stent according to a nineteenth embodiment of the present invention.
  • Figure 28 is a schematic view showing one of the states of use of the blood vessel stent according to the twentieth embodiment of the present invention.
  • Figure 29 is a schematic view showing another use state of the blood vessel stent according to the twentieth embodiment of the present invention.
  • Figure 30 is a schematic illustration of the release of a blood vessel stent in a blood vessel according to a twentieth embodiment of the present invention.
  • Figure 31a is a schematic view showing the structure of one of the main body holders of the blood vessel stent according to the twentieth embodiment of the present invention.
  • Figure 31b is a schematic view showing the structure of another main body bracket of the blood vessel stent according to the twentieth embodiment of the present invention.
  • Figure 31c is a schematic view showing the structure of another main body bracket of the blood vessel stent according to the twentieth embodiment of the present invention.
  • Figure 31d is a schematic view showing the structure of another main body bracket of the blood vessel stent according to the twentieth embodiment of the present invention.
  • the "proximal end” of the present invention refers to one end near the position of the heart, and the “distal end” is one end away from the position of the heart.
  • the height and the low in the present invention are relative to the main body tube coating, and the end surface beyond the main tube film is referred to as high, and the end surface of the main tube coating is not so low, which is only for convenience of description, and It is not to be understood as limiting the invention.
  • FIG. 1 is a schematic perspective view of a blood vessel shunt frame according to a first embodiment of the present invention
  • FIG. 2 is a schematic view of a blood vessel shunt frame provided with a child body tube according to a first embodiment of the present invention
  • 3 is a schematic perspective view of one of the annular wave-shaped support rods of the blood vessel shunt frame according to the first embodiment of the present invention
  • FIG. 4 is a schematic structural view of the support member of the blood vessel shunt frame according to the first embodiment of the present invention; .
  • the present invention provides a blood vessel shunt frame 100, which includes a main body tube 20. At least one end of the main body tube 20 is provided with a sealing film 50.
  • the sealing film 50 has a main blood flow port 52 and at least one blood.
  • the flow port 54 is provided with at least one support member on the sealing film 50, and at least one of the support members is connected to the two edges of the main blood flow port 52 adjacent to at least one of the secondary blood flow ports 54
  • the distal end of the main body tube 20 is provided with the sealing film 50, that is, the sealing film 50 is disposed at an end of the main body tube 20 far from the heart, and the sealing film 50 is provided.
  • the secondary blood flow port 54 and the main blood flow port 52 are opened, and the distal end of the child body tube 30 communicates with the secondary blood flow port 54.
  • One of the support members is fixed on the sealing film 50, and the support member is a support rod 60, and one end of the support rod 60 is connected to the edge of the main blood flow port 52 adjacent to the secondary blood flow port 54. The other end of the support rod 60 is connected to the edge of the secondary blood flow port 54 adjacent to the main blood vessel port 52.
  • the blood vessel shunt frame 100 provided by the present invention is provided with at least one support member on the sealing film 50 at the distal end of the main body tube 20, and at least one of the support members is connected to the main blood flow port 52 and at least one of the above
  • the secondary blood flow port 54 is between the adjacent edges. Therefore, the support member can support the sealing film 50, fully spread the sealing film 50, and extend the sealing film 50 away from the main blood flow port 52 or the secondary blood flow port 54 to Preventing the sealing film 50 from being folded and moving toward the main blood flow port 52 or the secondary blood flow port 54, thereby preventing the sealing film 50 from interfering with, blocking or blocking the main blood flow port 52 or secondary blood.
  • the flow port 54 allows the blood in the blood vessel shunt frame 100 to flow smoothly.
  • At least one daughter tube 30 is disposed in the main body tube 20, and at least one of the child tubes 30 is abutted to at least one of the secondary blood flow ports 54. That is, the daughter tube 30 communicates with the secondary blood flow port 54.
  • the daughter tube 30 is independently formed by the tubular separator film 31, or the semi-tubular separator film 31 is formed in close contact with the body tube wall 22.
  • the daughter tube 30 can extend the proximal anchoring area of the branch support, further defining the branch support, and increasing the stability after the release of the branch support.
  • the axial length of the daughter tube 30 may be less than or equal to the axial length of the body tube 20. In the case where the same shunt is provided with a plurality of sub-tubes 30, the lengths of the sub-tubes 30 may be the same or different.
  • the proximal end of the body tube 20 is provided with the sealing film 50, that is, the body tube 20 is provided with a sealing film 50 at an end closer to the heart.
  • the sealing film 50 is provided with at least one of the secondary blood flow port 54 and the main blood flow port 52, and the proximal end of the daughter tube 30 communicates with the secondary blood flow port 54.
  • At least one of the support members is fixed to the sealing film 50, and at least one of the support members is connected between the main blood flow port 52 and an edge adjacent to at least one of the secondary blood flow ports 54.
  • the distal end and the proximal end of the main body tube 20 are provided with the sealing film 50, and each sealing film 50 is provided with a main blood flow port 52 and at least one blood flow port 54.
  • At least one of the child tubes 30 is disposed in the main body tube 20, and the two ends of the child tubes 30 respectively abut the secondary blood flow ports 54 on the two sealing films 50, that is, the far side of the child tubes 30 The end communicates with the secondary blood flow port 54 on the sealing membrane 50 of the distal end of the main body tube 20, and the proximal end of the child tube 30 communicates with the secondary blood on the sealing membrane 50 of the proximal end of the main body tube 20.
  • Flow port 54 is provided to the sealing film 50, and the proximal end of the main body tube 20.
  • At least one of the support members is fixed to each of the sealing films 50, and at least one of the supporting members is connected between the main blood flow port 52 and an edge adjacent to at least one of the secondary blood flow ports 54.
  • the edge of the primary blood flow port 52 adjacent to the secondary blood flow port 54 is an arc
  • the secondary blood flow port 54 is opposite to the midpoint of the arc, that is, the secondary blood flow.
  • the center of the mouth 54 is opposite the midpoint of the arc.
  • One end of the support rod 60 is connected to the middle portion of the main blood flow port 52 adjacent to the edge of the secondary blood flow port 54, that is, the midpoint of the arc, and the other end of the support rod 60 is connected to the The blood flow port 54 is adjacent to the middle of the edge of the main blood vessel port 52.
  • the edge of the primary blood flow port 52 adjacent to the secondary blood flow port 54 may be a straight line, a curved type or other irregular line type, etc., and the secondary blood flow port 54 may be located in the seal. Any other location on the film 50.
  • the main body tube 20 includes a tubular main body cover 22, and a main body tube support bobbin 24 fixed to a wall surface of the main body cover 22.
  • the daughter tube 30 is surrounded by a tubular partitioning membrane 31 to divide the lumen of the body tube 20 into a body tube lumen 25 and a daughter tube lumen 33.
  • the distal end of the main body lumen 25 communicates with the main blood vessel port 52, and the sub-body lumen 33 is remote from the secondary blood flow port 54.
  • the main body tube 20 is a main body structure of the blood vessel shunt frame 100
  • the main body film 22 is a tubular structure whose shape of the lateral end surface is a circular or elliptical shape that fits the blood vessel.
  • the main body tube support frame 24 is sewn on the main body film 22, and the main body tube support frame 24 is formed by a plurality of annular wave-shaped support rods 242 along the axial direction of the main body film 22.
  • Each of the annular wave support rods 242 may be a high wave support rod or a high and low wave support rod or the like.
  • the high wave support rod means that the heights of the respective peaks on the annular wave shape support rod 242 are the same, and the heights of the respective troughs are also the same, that is, Each peak and each trough are on the same plane.
  • the high and low wave support rods mean that the heights of the respective peaks on the annular wave support rod 242 are different, and the heights of the respective valleys may also be different.
  • the main body tube support frame 24 includes a plurality of Z-shaped or sinusoidal waveform-shaped annular wave support rods 242 which are arranged along the axial interval of the main body film 22.
  • Each zigzag or sinusoidal waveform of each annular wave support rod 242 includes a peak 2421, a valley 2423, and a connecting rod 2425 connected between the peak 2421 and the valley 2423.
  • Each of the annular wave support rods 242 is woven by a superelastic nickel-titanium wire, and the superelastic nickel-titanium alloy wire has a wire diameter (ie, diameter) ranging from 0.3 mm to 0.55 mm.
  • Each of the annular wave support rods 242 is provided with a connecting sleeve 2427, and the connecting sleeve 2427 connects opposite ends of the annular wave supporting rod 242, that is, opposite ends of the annular wave supporting rod 242 It is housed in the connecting sleeve 2427, and then the two ends of the nickel-titanium wire are fixed inside the connecting sleeve 2427 by mechanical pressing or welding.
  • the annular wave-shaped support rod 242 is woven by a 0.5 mm diameter nickel-titanium wire, the number of Z-shaped or sine waves is nine, and the vertical height of the annular wave-shaped support rod 242 is 8-15 mm.
  • the body tube support frame 24 can be a woven mesh structure or a cut mesh structure.
  • the main body film 22 is made of polyester cloth, PTFE, PET or other polymer material, and the main body tube supporting frame 24 is stitched on the main body film 22 by stitches, that is, the stitches can be along each The waveform of the annular wave-shaped support rod 242 runs along with the entire body tube supporting the skeleton 24.
  • the suture can also be stitched to the body covering 22 by a plurality of non-equally spaced stitching knots. The diameter of the suture is selected from 0.05 mm to 0.25 mm.
  • the main body support frame 24 is fixedly coupled to the main body film 22 by heat pressing.
  • the sub-tube inner cavity 33 is independently surrounded by a partitioning film 31, and a cavity between the partitioning film 31 and the main body film 22 is the main body tube inner cavity 25.
  • the diameter of the main body lumen 25 is larger than the diameter of the daughter lumen 33, and the number of the daughter tubes 30 can be set according to actual needs, generally 1-4, preferably 2-4.
  • the transverse end faces of the main body lumen 25 and the daughter tube lumen 33 are circular, elliptical, fusiform or irregular curved.
  • the number of the daughter tubes 30 is one, and the daughter tubes 30 are in contact with the inner surface of the main body tube 20 and adjacent to the main blood flow port 52 adjacent to the secondary blood flow port 54.
  • the blood vessel shunt 100 includes a circular body lumen 25 and a circular daughter lumen 33.
  • the sealing film 50 is disposed at the distal end of the main body tube 20, the sealing film 50 is sealingly connected to the main body film 22, and the main blood flow port 52 and the secondary blood flow port 54 are both opened in the On the sealing film 50, the distal end of the separation film 31 is sealingly connected to the sealing film 50 corresponding to the secondary blood flow port 54. That is, the sealing film 50 connects the main body film 22 and the separation film 31 together, and closes the gap between the main body tube 20 and the sub-body tube 30.
  • the opening area of the main blood flow port 52 is smaller than the radial cross-sectional area of the main body film 22, and the opening area of the secondary blood flow port 54 is smaller than the opening area of the main blood flow port 52.
  • the opening area of the main blood flow port 52 may also be the same as the opening area of the secondary blood flow port 54.
  • the body lumen 25 further includes a main lumen corresponding to the main blood flow port 52, the main lumen being independently formed by a tubular septum, or a semi-tubular septum and body tube
  • the tube wall 22 is formed in a circle.
  • the sealing film 50 may also be disposed at the proximal end of the main body tube 20, or a sealing film 50 may be disposed at the distal end and the proximal end of the main body tube 20.
  • the sealing film 50 may be disposed along the radial direction of the body tube 20 or approximately radially.
  • the sealing film 50 is located at the distal end of the main body tube 20, and is sewn together with the main body film 22 and the separation film 31 by sewing.
  • the distal end surface of the secondary blood flow port 54 is lower than the distal end surface of the main blood flow port 52, and the sealing film 50 is recessed toward the secondary blood flow port 54 so that the sealing film 50 and the side of the main body tube 20
  • the wall covering forms a bell mouth, i.e., the sealing film 50 is inclined toward the secondary blood flow port 54.
  • the sealing film 50 is connected to the main blood flow port 52, the secondary blood flow port 54, the main body film 22, and the inclined surface of the partition film 31, and the angle between the inclined surface and the central axis of the main body tube 20 is 5 to 80 degrees, preferably 15-60 degrees.
  • the sealing film 50 may be a plane parallel to the radial direction of the body tube 20, that is, the sealing film 50 is a plane perpendicular to the central axis of the body tube 20.
  • the support rod 60 can be fixed on the sealing film 50 by stitching or hot pressing. In the embodiment, the support rod 60 is fixed on the sealing film 50 by stitching.
  • the support rod 60 includes a rod body 61 and two sewing rings 63 disposed at two ends of the rod body 61, wherein one sewing ring 63 is connected to the edge of the main blood flow port 52, and the other A sewing ring 63 is attached to the edge of the secondary blood flow opening 54, and the suture secures the two sewing rings 63 to the sealing film 50.
  • the support rod 60 may be made of a metal wire or a polymer material, preferably a memory alloy wire. In the present embodiment, it is a nickel-titanium wire having a wire diameter of 0.10-0.40 mm, preferably a wire diameter of 0.20-0.30 mm.
  • the support rod 60 is fixed between the edge of the main blood flow port 52 and the edge of the secondary blood flow port 54 on the sealing film 50 of the blood vessel shunt frame 100 of the present invention, and the support rod 60 can be fixed not only
  • the direction of the sealing film 50 is such that the sealing film 50 extends forward rather than being folded or tilted toward the secondary blood flow port 54 or the main blood flow port 52, that is, the sealing film 50 can be completely flattened, Folding may occur so as not to interfere with the secondary blood flow port 54 or the main blood flow port 52, and the sealing film 50 can be prevented from blocking the secondary blood flow port 54 or the main blood flow port 52; and the support rod 60 can also be inserted into the place
  • the branch blood vessel on the secondary blood flow port 54 of the blood vessel shunt frame 100 provides a guiding effect, that is, the traction guide wire of the branch blood vessel can slide into the secondary blood flow port 54 along the smooth sealing film 50, which is convenient Plug the branch vessels to improve work efficiency.
  • FIG. 5 is a schematic perspective view of a blood vessel shunt frame according to a second embodiment of the present invention
  • FIG. 6 is a perspective view of another perspective view of FIG.
  • the structure of the blood vessel shunt frame according to the second embodiment of the present invention is similar to that of the first embodiment, except that in the second embodiment, the sealing film 50 is provided with two tangent secondary blood.
  • the flow port 54 is provided with two daughter tubes 30 in the main body lumen 25 of the main body tube 20, and the distal ends of the two child tubes 30 respectively communicate two of the secondary blood flow ports 54.
  • the two blood flow ports 54 are located on a side away from the main blood flow port 54, and the outer sides of the two child tubes 30 are in contact with the inner wall of the main body tube cavity 25.
  • the support rod 60 is fixed to the sealing film 50 and is connected between the edge of the main blood flow port 52 adjacent to the secondary blood flow port 54 and the tangent point of the two second blood flow ports 54.
  • the sealing film 50 is recessed toward the two of the secondary blood flow openings 54, i.e., the sealing film 50 is inclined toward the two of the secondary blood flow ports 54.
  • one end of the support rod 60 is connected to a midpoint of the main blood flow port 52 adjacent to the edge of the secondary blood flow port 54, and the other end of the support rod 60 is connected to the two second blood flows.
  • the main blood flow port 52 is adjacent to the midpoint of the edge of the secondary blood flow port 54, the tangent point of the two blood flow ports 54, and the central axis of the main body lumen 25 are on the same plane.
  • the support rod 60 of the blood vessel shunt of the second embodiment of the present invention can prevent the sealing film 50 from being folded, and can easily insert two branch blood vessels.
  • FIG. 7 is a perspective structural view of a blood vessel shunt frame according to a third embodiment of the present invention
  • FIG. 8 is a perspective view of another perspective view of FIG.
  • the structure of the blood vessel shunt frame according to the third embodiment of the present invention is similar to that of the second embodiment, except that in the third embodiment, the sealing film 50 is provided with two support members, that is, the seal.
  • Two support rods 60 are fixed to the film 50, and two support rods 60 are respectively connected to the edges of the two blood flow ports 54 and the main blood flow port 52 adjacent to the edge of the secondary blood flow port 54.
  • the two support members can support the sealing film 50 more stably, prevent the sealing film 50 from being folded, and also facilitate the insertion of the branch blood vessels.
  • the two support rods 60 are symmetrically disposed, that is, the two support rods 60 are symmetrical with the plane of the central axis of the main body tube 20 along the tangential point passing through the two second blood flow ports 54.
  • One end of each of the support rods 60 is connected to the middle portion of the corresponding secondary blood flow port 54 adjacent to the edge of the main blood flow port 52, and the other end is connected to the end of the main blood flow port 52 adjacent to the edge of the secondary blood flow port 54.
  • a wave supporting rod 35 is fixed to the partitioning film 31 of each of the sub-tubes 30, and the wave-shaped supporting rod 35 can be set according to the shape of the partitioning film 31. That is, a wavy support rod 35 may be fixed on the partitioning film 31, or a plurality of undulating support rods 35 spaced apart in the axial direction of the partitioning film 31, and the undulating support rods 35 enclose the partitioning cover
  • the daughter tube of the membrane 31 supports the skeleton.
  • the structure, shape and material of the wave-shaped support bar 35 which may be an annular or open-loop wave-shaped support bar 35, are similar to the ring-shaped wave-shaped support bar 242 on the main body tube 20, and will not be described herein.
  • the two blood flow ports 54 on the sealing film 50 may not be tangent, and the two wave support bars 35 are fixed on the sealing film 50 and are respectively connected to the same.
  • the edge of the main blood flow port 52 is between the corresponding secondary blood flow port 54.
  • the woven mesh-shaped daughter tube support skeleton may also be fixed on the separation film 31.
  • the separation film 31 may also be a semi-tubular structure, and the separation film 31 of the semi-tubular structure is sewn on the inner surface of the main body film 22 to form a semicircle together with the main body film 22. Child tube.
  • the side of the main body membrane 22 away from the secondary blood flow port 54 can be cut into a V shape or a U shape, and the body tube 22 can be added when the main body tube 22 is used with a branch blood vessel or other branch support.
  • the visibility of the circumference of 30 makes it easier to insert branch blood vessels.
  • the above structure may be disposed at the distal end of the main body tube 22, or may be disposed at the proximal end of the main body tube 22, or both the distal end and the proximal end of the main body tube 22.
  • FIG. 9 is a schematic perspective structural view of a blood vessel shunt frame according to a fourth embodiment of the present invention.
  • the structure of the blood vessel shunt frame according to the fourth embodiment of the present invention is similar to that of the third embodiment, except that a support rod 60 is added to the third embodiment, that is, on the sealing film 50.
  • Three support rods 60 are fixed, three support rods 60 are spaced apart, and a support rod 60 located in the middle is connected to the tangent point of the two secondary blood flow ports 54 adjacent to the primary blood flow port 52.
  • two support rods 60 on either side are connected between the edges of the two secondary blood flow openings 54 and the edges of the primary blood flow opening 52 adjacent the secondary blood flow openings 54, respectively.
  • the sealing film 50 is supported by the three support rods 60, so that the sealing film 50 can be more stable, and does not fold or interfere with or block the secondary blood flow port 54 or the main blood flow port 52, so that the main body tube 20 and the daughter tube
  • the blood flow within 30 is smoother and it is convenient to insert branch blood vessels.
  • one end of the intermediate support rod 60 connects the tangent points of the two blood flow ports 54, and the other end is connected to the midpoint of the main blood flow port 52 adjacent to the edge of the secondary blood flow port 54;
  • the two support rods 60 are symmetrically disposed, that is, the two support rods 60 on both sides are symmetrical with the plane of the central axis of the main body tube 20 along the tangential point passing through the two secondary blood flow ports 54.
  • FIG. 10 is a schematic perspective structural view of a blood vessel shunt frame according to a fifth embodiment of the present invention.
  • the structure of the blood vessel shunt frame according to the fifth embodiment of the present invention is similar to that of the third embodiment, except that two support rods 60 are added on the basis of the third embodiment, that is, on the sealing film 50.
  • Four support rods 60 are fixed at intervals, wherein two support rods 60 are connected between the edge of one secondary blood flow port 54 and the edge of the primary blood flow port 52 adjacent to the secondary blood flow port 54, and the other two support rods 60 is connected between the edge of the other secondary blood flow port 54 and the main blood flow port 52 adjacent the edge of the secondary blood flow port.
  • the sealing film 50 is supported by the four supporting rods 60, so that the sealing film 50 can be more stable, and the secondary blood flow port 54 or the main blood flow port 52 can be interfered or blocked without folding, so that the main body tube
  • the blood flow in the 20 and the daughter tube 30 is smoother and it is convenient to insert the branch blood vessels.
  • the four support rods 60 are symmetrical with respect to the plane of the central axis of the main body tube 20 along the tangential point passing through the two secondary blood flow ports 54.
  • the two support rods 60 in the middle are in an "eight" shape, and each support rod 60 is connected to the middle of the edge of the main blood flow port 52 and the edge of the corresponding secondary blood flow port 54;
  • two support rods on both sides 60 has an inverted “eight" shape, and each of the support rods 60 is coupled to the end of the edge of the main blood flow port 52 and the edge of the corresponding secondary blood flow port 54.
  • more than four support rods 60 may be fixed on the sealing film 50, and a part of the support rods 60 are connected to one of the support rods connected to one of the support rods.
  • An edge of the secondary blood flow port 54 is adjacent to an edge of the primary blood flow port 52 adjacent to the secondary blood flow port 54, and another portion of the support rod 60 is coupled to an edge of the other of the secondary blood flow ports 54.
  • the main blood flow port 52 is adjacent to the edge of the secondary blood flow port 54.
  • the sealing film 50 is provided with a plurality of the secondary blood flow ports 54.
  • the sealing film 50 is fixed with a plurality of supporting rods 60 corresponding to the plurality of the secondary blood flow ports 54, each supporting A rod 60 is coupled between the edge of the corresponding secondary blood flow port 54 and the edge of the primary blood flow port 52 adjacent the secondary blood flow port 54.
  • the four support rods 60 may also be disposed on the sealing film 50 in parallel at intervals.
  • FIG. 11 is a schematic perspective view of a blood vessel shunt frame according to a sixth embodiment of the present invention
  • FIG. 12 is a schematic structural view of a support member of the blood vessel shunt frame according to the sixth embodiment of the present invention.
  • the structure of the blood vessel shunt frame according to the sixth embodiment of the present invention is similar to that of the third embodiment, except that the structure of the support rod 60a in the sixth embodiment and the support rod 60 in the third embodiment are different.
  • the support rod 60a includes a first rod body 64 and a second rod body 65 obliquely connected to one end of the first rod body 64.
  • the clamp between the first rod body 64 and the second rod body 65 The angle of the angle a ranges from 24 to 130 degrees.
  • the first rod 64 of each support rod 60a is fixed to the sealing film 50, and the second rod 65 is fixed to the side wall of the corresponding sub-tube 30, that is, the second rod 65 is fixed to the corresponding sub-tube 30. Separated from the film 31.
  • the intersection of the first rod 64 and the second rod 65 is located at the intersection of the sealing film 50 and the corresponding partition film 31.
  • the first rod body 64 and the sealing film 50 have the same inclination angle, and the second rod body 65 extends in the axial direction of the corresponding partition film 31.
  • first rod body 64 and the second rod body 65 are integrated, and the angle between the first rod body 64 and the second rod body 65 is shaped by hot pressing and bending.
  • the first rod body 64 and the second rod body 65 are respectively fixed on the sealing film 50 and the partitioning film 31 by sewing, and the first rod body 64 and the second rod body 65 may be sutured at the end or the middle portion. Fix the hole.
  • the first rod body 64 of the support rod 60a in the embodiment is fixed on the sealing film 50 to support the sealing film 50; the second rod body 65 is fixed on the partitioning film 31 to support not only the sealing film 50, Moreover, the corresponding partitioning film 31 can also be positioned, and the radial supporting force of the sub-tube 30 can be enhanced, so that the sealing film 50 and the sidewall coating of the main body tube 20 enclose a stable bell mouth structure, so that the main body tube 20
  • the blood flow in the daughter tube 30 is smoother and it is convenient to insert the branch blood vessels.
  • first rod body 64 and the second rod body 65 may also be a split design, and the connection point of the first rod body 64 and the second rod body 65 may be combined by welding, or the first The rod body 64 is in contact with the second rod body 65 and then fixed to the sealing film 50 and the partitioning film 31, respectively.
  • one or more support rods 60a may be disposed on the sealing film 50.
  • the sealing film 50 is provided with a support rod 60a
  • the first rod 64 of the support rod 60a is fixed to the sealing film 50
  • the second rod 65 is fixed to the tangent portion of the two sub-tubes 30.
  • FIG. 13 is a schematic perspective view of a blood vessel shunt frame according to a seventh embodiment of the present invention
  • FIG. 14 is a schematic structural view of a support member of the blood vessel shunt frame according to the seventh embodiment of the present invention.
  • the structure of the blood vessel shunt frame according to the seventh embodiment of the present invention is similar to that of the sixth embodiment, except that in the seventh embodiment, the sealing film 50 is provided with four support rods 60a and four supports.
  • the rods 60a are joined end to end to form a "W" shaped support member, the central portion of which is folded toward the same side.
  • the first rod 64 of each support rod 60a is fixed on the sealing film 50, and the second rod 65 of the support rod 60a is fixed on the side wall of the corresponding sub-tube 30, that is, the second rod 65 is fixed to the corresponding
  • the daughter tube 30 is separated from the membrane 31.
  • the intersection of the first rod 64 and the second rod 65 is located at the intersection of the sealing film 50 and the corresponding partition film 31.
  • the four support rods 60a are of a unitary symmetrical structure, and the connection points of the first rods 64 of the two middle support rods 60a are connected to the middle of the edge of the main blood flow port 52 adjacent to the secondary blood flow port 54. That is, the middle two support rods 60a enclose an inverted "V"-shaped structure, and the second rods 65 of the two middle support rods 60a are respectively fixed to the separation film 31 of the two sub-tubes 30.
  • the first rods 64 of the two support rods 60a on the two sides are respectively connected to the edges of the corresponding secondary blood flow ports 54 and the two ends of the edge of the main blood flow port 52, and the bottom ends of the two second rod bodies 65 are respectively respectively in the middle
  • the bottom ends of the second rods 65 of the two support rods 60a are connected and fixed to the partition film 31 of the corresponding daughter tube 30, that is, the two second rods on the partition film 31 of each of the daughter tubes 30.
  • 65 encloses a "V" shaped structure.
  • the first rods 64 of the four support rods 60a in this embodiment are fixedly spaced on the sealing film 50 to have a better supporting effect on the sealing film 50; the second rods 65 of the four supporting rods 60a are enclosed in two
  • the "V"-shaped support structure is respectively fixed on the partitioning film 31 of the two sub-tubes 30, and further can enhance the radial supporting force of the sub-tube 30, so that the sealing film 50 and the side wall of the main body tube 20 are covered.
  • the membrane encloses a more stable bell mouth structure, so that the blood flow in the main body tube 20 and the daughter tube 30 is smoother, and the branch vessel is easily inserted, and the compatibility of the main body bracket and the shunt is increased, so that the main body bracket and the shunt The joint is more stable.
  • FIG. 15 is a schematic perspective structural view of a blood vessel shunt frame according to an eighth embodiment of the present invention.
  • the structure of the blood vessel shunt frame according to the eighth embodiment of the present invention is similar to that of the first embodiment, except that in the eighth embodiment, the edge of the main blood flow port 52 is fixed with a shape suitable for its shape.
  • the sizing member is disposed on the sealing film 50 of the edge of the main blood flow opening 52 away from the side wall of the main body tube 20, that is, the sealing film 50 is adjacent to the side of the main blood vessel opening 52.
  • the sizing is provided at the edge.
  • the positioning member is a positioning rod 70 fixed on the sealing film 50, and the positioning rod 70 is used to propp the sealing film 50.
  • the positioning rod 70 When the main blood vessel port 52 is connected to the main body bracket, the positioning rod 70 is It can be closely attached to the outer surface of the main body bracket to prevent internal leakage at the interface between the main body tube 20 and the main body support.
  • the positioning rod 70 extends along an edge of the side of the sealing film 50 adjacent to the main blood vessel port 52. Therefore, the positioning rod 70 may be a wave rod, a curved rod, a wave rod or other shape rod.
  • the positioning rod 70 may be a one-piece structure or a split structure connected by several segments.
  • the positioning rod 70 is made of a memory alloy, preferably a nickel titanium alloy.
  • the positioning rod 70 has a diameter of between 0.10 and 0.40 mm.
  • the positioning rod 70 is formed by a three-section circular arc rod, and the two arc-shaped rods at both ends of the positioning rod 70 have the same structure and are symmetric along the midpoint of the middle arc. .
  • the edge of the secondary blood flow port 54 is also secured with a shaped member adapted to its shape, the shaped member being a positioning rod that is secured to the sealing film 50.
  • FIG. 16 is a schematic perspective structural view of a blood vessel shunt frame according to a ninth embodiment of the present invention.
  • the structure of the blood vessel shunt frame according to the ninth embodiment of the present invention is similar to that of the second embodiment, except that in the ninth embodiment, the edge of the sealing film 50 adjacent to the side of the main blood vessel port 52 is provided as In the positioning rod 70 described in the eighth embodiment, one end of the support rod 60 on the sealing film 50 is connected to the midpoint of the arc rod in the middle of the positioning rod 70, and the other end of the support rod 60 is connected to The tangent point of the two secondary blood flow openings 54.
  • FIG. 17 is a schematic perspective structural view of a blood vessel shunt frame according to a tenth embodiment of the present invention.
  • the structure of the blood vessel shunt frame according to the tenth embodiment of the present invention is similar to that of the ninth embodiment, except that in the tenth embodiment, the lengths of the two sub-body tubes 30 and the separation film 31 thereof are different.
  • the crimping diameter is too large, and the misalignment design can reduce the diameter of the delivery sheath.
  • FIG. 18 is a schematic perspective structural view of a blood vessel shunt frame according to an eleventh embodiment of the present invention.
  • the structure of the blood vessel shunt frame according to the eleventh embodiment of the present invention is similar to that of the third embodiment, except that in the eleventh embodiment, the sealing film 50 is adjacent to the edge of one side of the main blood vessel port 52.
  • the positioning rod 70 is disposed as described in the eighth embodiment, and one end of the two supporting rods 60 on the sealing film 50 is respectively connected to the two circular arc rods at the two ends of the positioning rod 70, and the two supporting rods 60 are respectively The other end is connected to the corresponding secondary blood flow port 54 adjacent the edge of the main blood flow port 52.
  • FIG. 19 is a schematic perspective structural view of a blood vessel shunt frame according to a twelfth embodiment of the present invention.
  • the structure of the blood vessel shunt frame according to the twelfth embodiment of the present invention is similar to that of the fifth embodiment, except that in the twelfth embodiment, the sealing film 50 is adjacent to the edge of one side of the main blood vessel port 52.
  • the positioning rod 70 is provided as in the eighth embodiment, and one end of the middle two supporting rods 60 on the sealing film 50 is connected to the midpoint of the arc rod in the middle of the positioning rod 70, and the other end is respectively Connected to the edge of the corresponding secondary blood flow port 54; two support rods 60 on both sides of the sealing film 50 are respectively connected to the two arcs of the two ends of the positioning rod 70 and the edges of the two secondary blood flow ports 54 .
  • FIG. 20 is a schematic perspective structural view of a blood vessel shunt frame according to a thirteenth embodiment of the present invention.
  • the structure of the blood vessel shunt frame according to the thirteenth embodiment of the present invention is similar to that of the sixth embodiment, except that in the thirteenth embodiment, the sealing film 50 is adjacent to the edge of one side of the main blood vessel port 52.
  • the positioning rod 70 is disposed as described in the eighth embodiment, and one end of the two first rod bodies 64 on the sealing film 50 away from the secondary blood flow port 54 is connected to the two circular arc rods at both ends of the positioning rod 70. .
  • FIG. 21 is a schematic perspective structural view of a blood vessel shunt frame according to a fourteenth embodiment of the present invention.
  • the structure of the blood vessel shunt frame according to the fourteenth embodiment of the present invention is similar to that of the seventh embodiment, except that in the fourteenth embodiment, the sealing film 50 is adjacent to the edge of one side of the main blood vessel port 52.
  • the positioning rod 70 is disposed as described in the eighth embodiment, and one end of the middle two supporting rods 60a on the sealing film 50 is connected to the midpoint of the arc rod in the middle of the positioning rod 70, and the other end is respectively Connected to the partition film 31 of the corresponding secondary blood flow port 54; the two support rods 60a on both sides of the sealing film 50 are respectively connected to the two arcs of the two ends of the positioning rod 70 and two secondary blood flows The mouth 54 is separated from the film 31.
  • FIG. 22 is a perspective structural view of a blood vessel shunt frame according to a fifteenth embodiment of the present invention
  • FIG. 23 is a structure of a developing structure of the blood vessel shunt frame according to the fifteenth embodiment of the present invention.
  • schematic diagram The structure of the blood vessel shunt frame according to the fifteenth embodiment of the present invention is similar to that of the first embodiment, except that in the fifteenth embodiment, the distal end of the daughter tube 30 is in the second blood.
  • An annular development structure 80 is disposed around the flow port 54, and the annular development structure 80 includes a support member 82 and a developing member 84.
  • the support member 82 is a metal ring or a metal rod adapted to the shape of the edge of the secondary blood flow port 54, and the developing member 84 is a developing wire wound continuously or intermittently on the metal ring or the metal rod.
  • the support member 82 of the developing structure 80 is made of an alloy doped with a developing material, for example, the nickel-titanium alloy wire is made of a niobium-containing nickel-titanium alloy wire having a diameter of 0.10. -0.40mm.
  • the support member 82 is made of a metal ring made of a memory alloy, the metal ring is adapted to the edge shape of the secondary blood flow port 54, and the developing member 84 is continuously or intermittently wound around the metal ring.
  • the developing wire on the top. Since the annular developing structure 80 is developable and annular, the position of the annular developing structure 80 can be clearly observed by the image forming apparatus during the surgery, that is, it can be observed that the developing structure 80 is the secondary blood flow.
  • the edge of the mouth 54 is surrounded by a discrete development point, so that it is more convenient and quick to insert a branch vessel in the secondary blood flow port 54.
  • the developer material includes, but is not limited to, gold, platinum, platinum-tungsten, palladium, platinum-iridium, ruthenium, osmium, or alloys or composites of these metals.
  • the development structure 80 is a development point that is continuously or intermittently fixed to the edge of the secondary blood flow port 54 on the sealing film 50 by stitching, stamping, hot pressing, setting or affixing. The manner is fixed to the support member 82 or to the sealing film 50 where the support member 82 is placed.
  • the proximal tube nozzle 30 is provided with a development structure 80 at the proximal end of the nozzle port 30.
  • the design of the development structure 80 is the same as that of the development structure 80 at the edge of the secondary blood flow port 54.
  • the developing structure 80 may also be disposed on the separation film 31 of the daughter tube 30.
  • the separation film 31 may be provided with continuous or intermittent from the proximal end to the distal end in the axial direction.
  • a plurality of development points are fixed to the separation film 31 by stitching, stamping, hot pressing, setting or affixing.
  • the axially disposed development points may be arranged in a row of 1-4 circumferentially. The axially disposed development point further marks the direction of extension of the daughter tube, allowing the surgeon to perform the procedure more quickly during the procedure.
  • the edge of the main blood flow port 52 is also provided with a development structure 80 that is a development point that is continuously or intermittently secured to the sealing film 50 at the edge of the main blood flow port 52.
  • the support member 82 is a metal ring or a metal rod adapted to the shape of the edge of the main blood flow port 52 or the secondary blood flow port 54, and the developing member 84 is continuously or intermittently wound around the metal ring or A developing wire on a metal rod.
  • At least one week of Nitinol wire may be embedded on the outer surface of the support member 82, or at least one week of Nitinol wire may be attached to the outer surface of the support member 82.
  • the support member 82 is wound with a twisted wire.
  • each daughter tube 30 is also provided with the above-described development structure 80 at the edge of the secondary blood flow port 54.
  • the distal end of the body tube 20 may also be provided with the above-described development structure 80 at the edge of the main blood flow port 52.
  • the developing member 84 is a development structure that is embedded or attached to the outer surface of the metal ring or metal rod.
  • the developing member 84 is a developing material fused within the support member 82, that is, the developing member 84 is a developing material fused in a metal ring or a metal rod.
  • the support member 82 is surrounded by a niobium-containing nickel-titanium alloy wire having a wire diameter of 0.10-0.40 mm and an outer diameter of the support member 82 of 12-16 mm. Since the support member 82 is made of an alloy containing a developing material, the support member 82 can be directly used as a developing structure without being provided on the developing member 84 on the support member 82. The position of the support member 82 can be clearly observed by the imaging device during the operation, and the branch vessel stent can be inserted into the secondary blood flow port 54 conveniently and quickly, which is convenient to use.
  • FIG. 24 is a schematic perspective structural view of a blood vessel shunt frame according to a sixteenth embodiment of the present invention.
  • the structure of the blood vessel shunt frame according to the sixteenth embodiment of the present invention is similar to that of the third embodiment, except that in the sixteenth embodiment, the distal end of each of the daughter tubes 30 is in the second blood.
  • the developing structure 80 is disposed around the flow port 54; further, the proximal edge of each of the sub-tubes 30 is also provided with the developing structure 80.
  • FIG. 25 is a schematic perspective structural view of a blood vessel shunt frame according to a seventeenth embodiment of the present invention.
  • the structure of the blood vessel shunt frame according to the seventeenth embodiment of the present invention is similar to that of the fifth embodiment, except that in the seventeenth embodiment, the distal end of each of the daughter tubes 30 is in the second blood.
  • the developing structure 80 is disposed around the flow port 54; further, the proximal edge of each of the sub-tubes 30 is also provided with the developing structure 80.
  • FIG. 26 is a schematic perspective structural view of a blood vessel shunt frame according to an eighteenth embodiment of the present invention.
  • the structure of the blood vessel shunt frame according to the eighteenth embodiment of the present invention is similar to that of the sixth embodiment, except that in the eighteenth embodiment, the distal end of each of the daughter tubes 30 is in the second blood.
  • the developing structure 80 is disposed around the flow port 54; further, the proximal edge of each of the sub-tubes 30 is also provided with the developing structure 80.
  • FIG. 27 is a schematic perspective structural view of a blood vessel shunt frame according to a nineteenth embodiment of the present invention.
  • the structure of the blood vessel shunt frame according to the nineteenth embodiment of the present invention is similar to that of the seventh embodiment, except that in the nineteenth embodiment, the distal end of each of the daughter tubes 30 is in the second blood.
  • the developing structure 80 is disposed around the flow port 54; further, the proximal edge of each of the sub-tubes 30 is also provided with the developing structure 80.
  • FIG. 28 is a schematic perspective view of a blood vessel stent according to a twentieth embodiment of the present invention
  • FIG. 29 is a schematic view showing a state of use of the blood vessel stent according to the twentieth embodiment of the present invention
  • Figure 30 is a schematic view showing another use state of the blood vessel stent according to the twentieth embodiment of the present invention.
  • the present invention also provides a blood vessel stent comprising any one of the first to nineteenth embodiments of the blood vessel shunt frame 100, the main body bracket 200 and the branch bracket 300, one end of the main body bracket 200 passing through the
  • the main blood flow port 52 of the sealing film 50 is inserted into the main body lumen 25 of the main body tube 20, and one end of the branching bracket 300 is inserted through the secondary blood flow port 54 of the sealing film 50.
  • the sealing film 50 at the distal end of the blood vessel shunt frame 100 is provided with two daughter tube lumens 33 and a body tube lumen 25, and the body tube lumen 25 is inserted.
  • the main body bracket 200 has a branch bracket 300 inserted into each of the sub-body lumens 33.
  • the main body bracket 200 includes a connection film 201 and a connection support skeleton 202 fixed to the connection film 201.
  • the main body bracket 200 structure may be an equal diameter bracket or a non-equal diameter bracket.
  • the equal-diameter stent-type blood vessel means that the diameters of the main body stent 200 at different positions in the axial direction are the same.
  • the non-equal diameter stent type blood vessel refers to different diameters of different positions in the axial direction of the main body bracket 200, and the non-equal diameter stent type blood vessel includes the first tubular body 210 from the proximal end to the distal end in sequence.
  • the second tubular body 220 and the third tubular body 230 are non-equal diameter brackets, and the second tubular body 220 has a smaller diameter than the first tubular body 210 and the third tubular body 230. Transition portions 221, 222 may also be provided between the first tubular body 210, the second tubular body 220, and the third tubular body 230.
  • the proximal support frame 202 of the main body bracket 200 is partially exposed outside the cover 201 for connection to the transport device.
  • the main body bracket 200 is a non-equal diameter bracket.
  • the diameter of the proximal end of the non-equal diameter bracket is larger than the diameter of the distal end, and the diameter is gradually reduced from the proximal end to the distal end, and the whole stent forms a uniform transition.
  • the truncated cone structure accommodates the vascular morphology that changes from proximal to distal diameter.
  • the connecting film 201 is made of a polyester cloth or other polymer material, and the connecting film 201 of the equal-diameter stent type blood vessel is a straight cylindrical shape, and the connecting film 201 of the non-equal diameter stent type blood vessel is a tubular structure having axially different diameters.
  • the main body bracket 200 may also be a high-low wave stent type blood vessel or a contour wave stent type blood vessel. As shown in Fig. 31c, the high and low wave stent type blood vessels are partially sutured stents.
  • the connection support frame 202 is sutured to the connection film 201 by a suture, and the suture manner is the same as that of the main body tube cover 22 and the main body tube support frame 24 of the blood vessel shunt frame 100, and will not be described herein.
  • the embedded branch surface is a high-wave array surface of the annular wave-shaped support rod, and the embedded branch center line corresponds to the high-wave center line.
  • branch bracket 300 is the same as that of the main body bracket 200, and details are not described herein again.
  • the blood vessel shunt frame 100 is first released in the body, and the release position of the blood vessel shunt frame 100 is judged by the imaging device; and the proximal end of the main body bracket 200 is released to the main body of the distal end of the blood vessel shunt frame 100.
  • the main blood flow port 52 of the lumen 25 is inside. Since the diameter of the main blood flow port 52 of the main body lumen 25 is smaller than the diameter of the proximal end portion of the main body bracket 200, the main body lumen 25 compresses the proximal end portion of the main body bracket 200 such that the main body bracket 200
  • the tubular body is attached to the wall of the main body lumen 25 to prevent internal leakage.
  • the proximal end of the branch stent 300 is again released into the secondary blood flow port 54 of the daughter tube lumen 33 at the distal end of the blood vessel shunt frame 100.
  • the proximal end of the branch stent 300 is along the inclined surface of the sealing membrane 50.
  • the sub-tube lumen 33 is inserted to facilitate insertion of the branch holder 300. Since the diameter of the secondary blood flow port 54 of the daughter body lumen 33 is smaller than the diameter of the proximal end portion of the branch stent 300, the daughter body lumen 33 compresses the proximal end portion of the branch stent 300 such that the branch stent
  • the tubular body of 300 is attached to the wall of the inner lumen 33 of the daughter tube to prevent internal leakage.
  • the developing structure 80 is disposed at the main blood flow port 52 of the main body tube lumen 25 of the blood vessel shunt frame 100 and the secondary blood flow port 54 of the daughter body inner cavity 33, the main body bracket 200 and the branch bracket 300 can be conveniently inserted. .
  • the vascular stent can be used for the treatment of thoracic aortic aneurysm or thoracic aortic dissection, particularly for the treatment of thoracic aortic aneurysm or thoracic aortic dissection involving the ascending aorta or aortic arch, as shown 30, when released, pushes the conveyor along the super-hard guide wire, pushing the pre-installed blood vessel shunt frame 100 to the thoracic aortic dissection lesion position, through the development ring at the front end of the outer sheath tube and the distal end of the blood vessel shunt frame 100
  • the developing structure is positioned to release the blood vessel shunt frame 100 by operating the fixed handle and the sliding handle of the conveyor.
  • the main body bracket 200 is released in the same manner, so that the proximal end of the main body bracket 200 is inserted into the main body lumen 25 of the blood vessel shunt frame 100. After the expansion, the proximal end of the main body bracket 200 is clamped by the main body lumen 25 and the main blood flow port 52. A tight fit is formed to prevent the body stent 200 from being disengaged from the blood vessel shunt frame 100. Finally, the branch holder 300 is released in the same manner.
  • a branch blood flow port 205 may be further formed on the main body bracket 200, and a branch bracket is inserted into the branch blood flow port 205.
  • a part of the distal end to the proximal end of the main body bracket 200 or the branch blood vessel 300 is a non-equal annular wave-shaped support rod, and the annular support has 1-4 unsent at the distal end or the proximal end of the stent graft.
  • the peaks and/or troughs on the film are stitched, and the peaks and/or troughs act as bare supports for ease of assembly.
  • the number of each annular stent depends on the axial length of the stent graft.

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  • Health & Medical Sciences (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Pulmonology (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)

Abstract

L'invention concerne un cathéter de dérivation (100) comprenant un manchon (20) de corps principal, un revêtement étanche (50) placé sur au moins une des extrémités du manchon (20) de corps principal, une ouverture principale (52) d'écoulement sanguin ménagée dans le revêtement étanche (50) et au moins un élément de support disposé sur le revêtement étanche (50), lequel au moins un élément de support connecte l'ouverture principale (52) d'écoulement sanguin avec au moins une ouverture secondaire (54) d'écoulement sanguin entre deux bords adjacents. L'élément de support peut soutenir le revêtement étanche (50) de manière à s'étaler suffisamment pour éviter que le revêtement étanche ne se plie et ne se déplace vers l'ouverture principale (52) d'écoulement sanguin ou vers l'ouverture secondaire (54) d'écoulement sanguin en vue d'assurer l'écoulement sans à-coups du sang dans le cathéter de dérivation.
PCT/CN2018/116544 2017-11-24 2018-11-20 Cathéter de dérivation destiné à renforcer la stabilité ainsi que cathéter WO2019101077A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CN201711192775 2017-11-24
CN201711192781.9 2017-11-24
CN201711192781 2017-11-24
CN201711192775.3 2017-11-24
CN201810899833.4 2018-08-08
CN201810899833.4A CN109833116B (zh) 2017-11-24 2018-08-08 增强稳定性的血管分流架及血管支架

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WO2019101077A1 true WO2019101077A1 (fr) 2019-05-31

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10888414B2 (en) 2019-03-20 2021-01-12 inQB8 Medical Technologies, LLC Aortic dissection implant

Citations (7)

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