WO2024140471A1 - 管腔支架 - Google Patents
管腔支架 Download PDFInfo
- Publication number
- WO2024140471A1 WO2024140471A1 PCT/CN2023/141012 CN2023141012W WO2024140471A1 WO 2024140471 A1 WO2024140471 A1 WO 2024140471A1 CN 2023141012 W CN2023141012 W CN 2023141012W WO 2024140471 A1 WO2024140471 A1 WO 2024140471A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wave
- mesh
- cover
- mesh cover
- hooking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
-
- 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
- A61F2/07—Stent-grafts
-
- 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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/856—Single tubular stent with a side portal passage
-
- 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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/89—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
-
- 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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
-
- 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
- A61F2002/061—Blood vessels provided with means for allowing access to secondary lumens
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0014—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0061—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof swellable
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0066—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof shrinkable
Definitions
- the present invention relates to the technical field of medical devices, and in particular to a lumen support.
- Interventional treatment refers to the use of a delivery system to implant a vascular stent into the patient's vascular disease segment.
- the implanted vascular stent can expand to support the narrowed occluded segment of the blood vessel or block the rupture of the vascular dissection, reduce the elastic retraction and reshaping of the blood vessel, maintain smooth blood flow in the lumen, and prevent vascular stenosis.
- a stent with a groove can be implanted.
- the groove corresponds to the branch blood vessel to ensure that the blood in the aorta enters the branch blood vessel through the groove, which can not only support the narrowed occluded segment of the blood vessel or block the rupture of the vascular dissection, but also keep the blood flow of the branch unobstructed.
- a mesh cover can be set on the groove. The mesh cover has a good supporting effect and can avoid the lumen from squeezing the groove and compressing the operating space. However, the setting of the mesh cover is easy to cause obstruction to the guide wire or the bridging stent.
- the present invention provides a luminal stent which can reduce the obstruction to the guide wire or the bridging stent.
- a tubular cavity support comprising a mesh cover, the mesh cover comprising at least one row of hooking units, each of the hooking units comprising a first hooking member and a second hooking member which are hooked to each other in sequence from the proximal end to the distal end, the first hooking member comprising a trough and two first wave rods connected to the trough, the second hooking member comprising a crest and two second wave rods connected to the crest, the trough of the first hooking member and the crest of the second hooking member being relatively movable in the axial direction;
- the mesh cover axially comprises a proximal cover and a distal cover, in the proximal cover, the first wave rod on the side close to the radial edge of the mesh cover in the same hooking unit crosses over the second wave rod; and/or, in the distal cover, the second wave rod on the side close to the radial edge of the mesh cover in the same hooking unit crosses over the first wave rod.
- a hooking gap is provided between the first hooking member and the second hooking member of the same hooking unit.
- the wave trough and the wave crest include a cross bar, and two of the first wave bars are connected by the cross bar, and/or two of the second wave bars are connected by the cross bar.
- the angle formed between the first wave bar and the cross bar is an obtuse angle, and/or the angle formed between the second wave bar and the cross bar is an obtuse angle.
- the crossbar is a straight bar or a curved bar.
- the mesh cover along the circumference of the luminal stent, includes a first mesh area and at least two second mesh areas respectively connected to both sides of the first mesh area; the second mesh area includes at least one column of the hooking units, and the first mesh area includes multiple columns of crossing units.
- the first wave rod and the second wave rod of the hooking unit close to the radial edge of the mesh cover form an axial gap
- the multiple axial gaps formed by the hooking units in the same row include end gaps and middle gaps, the end gaps are closer to the axial end of the mesh cover than the middle gaps, and the maximum axial length of at least one end gap is greater than the maximum axial length of the middle gap.
- the mesh cover further comprises at least one row of side connecting members arranged on radial sides of the mesh cover, the side connecting members are connected to the hooking units, and the side connecting members comprise connecting holes for connection.
- the mesh cover also includes a side end connector arranged at the axial end of the mesh cover, and a plurality of the side connectors in the same column include two first side connectors and a second side connector located between the two first side connectors, the first side connectors are respectively connected to the side end connector and the hooking unit in the axial direction, and the second side connector is respectively connected to one first hooking member and one second hooking member.
- the tubular cavity support also includes a main body support, the main body support includes an inner cavity, and the side of the main body support is radially recessed inward to form a groove, the mesh cover is connected to the groove, and at least a portion of the mesh cover and the bottom of the groove form a radial gap in the radial direction of the tubular cavity support, and the radial gap is connected to the inner cavity.
- the mesh cover is connected to the main support through a plurality of side connecting members, and the interval formed between two adjacent side connecting members is communicated with the radial interval.
- the present invention also provides a tubular cavity support, comprising a main body support and a mesh cover connected to the main body support, the side surface of the main body support is radially recessed inward to form a groove, and at least a portion of the mesh cover and the bottom of the groove form a radial spacing in the radial direction of the tubular cavity support;
- the mesh cover comprises a side end connector and a middle end connector connected to the main body support, the side end connector is closer to the radial edge of the mesh cover than the middle end connector, the middle end connector located at the proximal end of the mesh cover is closer to the proximal end of the tubular cavity support than the side end connector located at the proximal end of the mesh cover, and/or the middle end connector located at the distal end of the mesh cover is closer to the distal end of the tubular cavity support than the side end connector located at the distal end of the mesh cover.
- the middle end connector is connected to the axial edge of the groove
- the side end connector is connected to the axial edge and/or radial edge of the groove.
- the intermediate end connector includes an intermediate wave angle
- the intermediate wave angle includes a vertex connected to the axial end of the groove and two wave rods extending from the vertex toward the other axial end of the groove.
- the mesh cover also includes a bending portion, which includes a first rod and a second rod connected to each other, a bending angle is formed between the first rod and the second rod, the first rod extends from the bending angle toward a direction close to one axial end of the mesh cover, and the second rod extends from the bending angle toward a direction close to the other axial end of the mesh cover.
- the wave rod with the intermediate wave angle is in contact with the bending portion, or there is a gap between the wave rod with the intermediate wave angle and the bending portion in the radial direction of the luminal stent.
- one end of the first rod away from the bending angle is connected to the edge of the groove.
- the second rod passes through the first net-shaped area and is connected to the hooking unit in the second net-shaped area.
- FIG6 is a partial enlarged view of position B in FIG4 of the present invention.
- FIG12 is a perspective schematic diagram of the proximal end section of the luminal stent of the present invention.
- FIG14 is a schematic diagram of suturing the intermediate wave angle and the proximal body covering film according to an embodiment of the present invention.
- FIG. 15 is a partial enlarged view of position G in FIG. 14 of the present invention.
- the embodiments of the present invention are illustrated by taking the aortic arch as the target implantation lumen.
- the aortic arch has a large curvature side (i.e., the side with a smaller curvature and a larger curvature radius) and a small curvature side (i.e., the side with a larger curvature and a smaller curvature radius).
- the luminal stent When 100 is implanted in the aortic arch, the mesh cover 4 faces the greater curvature and is opposite to the branch blood vessels.
- the external bridging stent connects the branch blood vessels and passes through the mesh holes of the mesh cover 4 and communicates with the main stent 10 through the groove 5.
- the first edge and the second edge can be at a certain angle with the axis of the luminal stent 100, so that the opening of the groove 5 is roughly trapezoidal, or the first edge and the second edge can be arc-shaped, so that the opening of the groove 5 is similar to an ellipse).
- the present invention does not limit the specific shape of the groove 5.
- the mesh cover 4 includes a first mesh area 41 and a second mesh area 42 connected to each other.
- the first direction support wire 481 in the first mesh area 41 is located on the outside of the second direction support wire 482, or the first direction support wire 481 is located on the inside of the second direction support wire 482.
- the first-direction supporting wire 481 and the second-direction supporting wire 482 overlap with each other and can move relatively, so the mesh in the first mesh area 41 can be deformed and enlarged under the action of external force to facilitate the guide wire and the bridging stent to pass through its mesh.
- the mesh can retract to provide certain support and limit the bridging stent, reduce the bridging stent from swinging with the blood or heart beat, and ensure the stability of branch blood supply.
- the upper side refers to the side farther away from the inner cavity of the main stent 10, which can also be understood as the outer side of the arched structure of the mesh cover 4; the reason for this arrangement is that the bridging stent usually enters the groove 5 from the mesh on the proximal end 43 and then connects with the branch stent 6 located in the proximal section 2.
- the maximum axial length of the end interval near the proximal end of the mesh cover 4 is greater than the maximum axial length of the middle interval (L2 shown in FIG. 2 ).
- the maximum axial length of the end interval near the proximal end of the mesh cover 4 is greater than the maximum axial length of the middle interval
- the maximum axial length of the end interval near the distal end of the mesh cover 4 is greater than the maximum axial length of the middle interval.
- a branch stent 6 is provided near only one axial end of the mesh cover 4, it is sufficient as long as the maximum axial length of the end interval near the axial end is greater than the maximum axial length of the middle interval.
- the maximum axial length L1 of the end interval can be roughly equal to the maximum axial length L2 of the middle interval. It is only necessary to arrange in the proximal cover 43 that the first wave rod 4712 on the radial edge side of the mesh cover 4 in the same hooking unit 47 passes over the top of the second wave rod 4722; and/or, in the distal cover 45, the second wave rod 4722 on the radial edge side of the mesh cover 4 in the same hooking unit 47 passes over the top of the first wave rod 4712, so as to achieve the effect that the mesh holes on the radial side of the mesh cover 4 can be easily expanded and deformed.
- the mesh cover 4 of the present embodiment further comprises at least one row of side connectors 46 arranged on the radial side of the mesh cover 4, each row of side connectors 46 comprises at least one side connector 46, and the mesh cover 4 is connected to the main support 10 via the side connectors 46.
- the side connectors 46 comprise connection holes 46a, through which the mesh cover 4 and the main support 10 can be sutured and connected, and in other embodiments, the mesh cover 4 and the main support 10 can also be fixedly connected by bonding, etc.
- the side connectors 46 are all connected to the hooking units 47.
- the side connectors 46 are respectively connected to two axially adjacent hooking units 47.
- the second wave rod 4722 in the second hooking member 472 of the hooking unit 47 closer to the proximal end of the luminal stent 100 continues to extend and bend to form a connecting hole, and then connects to the first wave rod 4712 of the first hooking member 471 of the hooking unit 47 closer to the distal end of the luminal stent 100.
- the first wave rod 4712 and the second wave rod 4722 are both wave rods closer to the radial side of the mesh cover 4 in the hooking unit 47.
- the connecting hole can be used to be fixedly connected to the covering or the stent body by suturing.
- the connecting hole can not only facilitate the suturing operation, but also play a limiting role to prevent relative slippage between the suture and the mesh cover 4.
- the connecting hole is a closed hole, so it is conducive to further improving the limiting effect.
- the connecting hole can be an open hole.
- the angle formed by the cross bar 473 and the first wave bar 4712 and/or the second wave bar 4722 is an obtuse angle, so as to further expand the size of the mesh formed by the hooking gap.
- the length of the cross bar 473 should be appropriate, ranging from 1 mm to 4 mm, which can not only expand the hooking gap and protect the inner wall of the blood vessel, but also avoid the problem of excessive radial compression size of the mesh cover 4 caused by the cross bar 473 being too long.
- the mesh cover 4 includes four side end connectors 42a and four bent portions 422, wherein two side end connectors 42a and two bent portions 422 are located at the proximal end of the mesh cover 4, the two side end connectors 42a are respectively connected to the two corners at the proximal end of the groove 5, and the two bent portions 422 are respectively connected to the two side end connectors 42a; two side end connectors 42a and two bent portions 422 are located at the distal end of the mesh cover 4, the two side end connectors 42a are respectively connected to the two corners at the distal end of the groove 5, and the two bent portions 422 are respectively connected to the two side end connectors 42a.
- the number of side end connectors 42a and bent portions can be selected according to the actual application scenario.
- the advantage of such a configuration is that when the mesh cover 4 is radially compressed or bent, the bent portion 422 can bulge in a direction away from the groove 5, thereby lifting up the fourth wave rod 4113 spanning from above, thereby preventing the intermediate wave angle 411 from being excessively stretched after the tubular stent 100 is bent to form a relatively flat structure. Therefore, the mesh cover 4 can better maintain the internal space of the groove 5 at the axial end, thereby avoiding encroaching on the space near the opening of the branch stent 6.
- the fourth wave bar 4113 of the middle wave angle 411 and the bent portion 422 may contact each other; or, as shown in FIG12 and FIG13, there is a gap 8 between the fourth wave bar 4113 of the middle wave angle 411 and the bent portion 422 in the radial direction of the luminal stent 100; regardless of contacting each other or forming a gap 8, the middle wave angle 411 can move relative to the bent portion 422, so that regardless of whether the mesh cover 4 is in a bent or straight state, it has better deformation ability and compliance, and can better maintain the internal space formed between the mesh cover 4 and the groove 5.
- the fourth wave rod 4113 of the middle wave angle 411 may be an arc rod 4111, and the arc rod 4111 is an arched curved structure that bulges upward, and the upward bulge here specifically bulges in the radial direction of the luminal stent 100 in the direction away from the central axis of the luminal stent 100, and the bulged arched curved structure can be more conducive to forming a gap 8 between the middle wave angle 411 and the bent portion 422.
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- Veterinary Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Vascular Medicine (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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Abstract
Description
Claims (11)
- 一种管腔支架,其特征在于,包括网盖,所述网盖包括至少一列钩挂单元,每个所述钩挂单元包括自近端向远端方向依次相互钩挂的第一钩挂件和第二钩挂件,所述第一钩挂件包括一个波谷和与所述波谷连接的两根第一波杆,所述第二钩挂件包括一个波峰和与所述波峰连接的两根第二波杆,所述第一钩挂件的波谷与所述第二钩挂件的波峰在轴向上可相对移动;所述网盖在轴向上包括近端盖和远端盖,所述近端盖中,同一所述钩挂单元中靠近所述网盖径向边缘一侧的所述第一波杆自所述第二波杆的上方跨越;和/或,所述远端盖中,同一所述钩挂单元中靠近所述网盖径向边缘一侧的所述第二波杆自所述第一波杆的上方跨越。
- 根据权利要求1所述的管腔支架,其特征在于,同一个所述钩挂单元的所述第一钩挂件和所述第二钩挂件之间具有钩挂间隙。
- 根据权利要求1所述的管腔支架,其特征在于,所述波谷和所述波峰包括横杆,两根所述第一波杆之间通过所述横杆连接,和/或,两根所述第二波杆之间通过所述横杆连接。
- 根据权利要求3所述的管腔支架,其特征在于,所述第一波杆与所述横杆之间形成的夹角为钝角,和/或,所述第二波杆与所述横杆之间形成的夹角为钝角。
- 根据权利要求3所述的管腔支架,其特征在于,所述横杆为直杆或者弧形杆。
- 根据权利要求1所述的管腔支架,其特征在于,沿所述管腔支架的周向,所述网盖包括第一网状区域和至少两个分别与所述第一网状区域的两侧连接的第二网状区域;所述第二网状区域包括至少一列所述钩挂单元,所述第一网状区域包括多列交叉单元。
- 根据权利要求1所述的管腔支架,其特征在于,所述钩挂单元靠近所述网盖径向边缘一侧的第一波杆和第二波杆形成轴向间隔,同一列所述钩挂单元形成的多个所述轴向间隔包括端部间隔和中间间隔,所述端部间隔较所述中间间隔更靠近所述网盖的轴向端部,至少一个所述端部间隔的最大轴向长度大于所述中间间隔的最大轴向长度。
- 根据权利要求1所述的管腔支架,其特征在于,所述网盖还包括设于所述网盖径向侧边的至少一列侧边连接件,所述侧边连接件与所述钩挂单元连接,且 所述侧边连接件包括用于连接的连接孔。
- 根据权利要求8所述的管腔支架,其特征在于,所述网盖还包括设于所述网盖的轴向端部的侧边端部连接件,同一列中多个所述侧边连接件包括两个第一侧边连接件及位于两个所述第一侧边连接件之间的第二侧边连接件,所述第一侧边连接件在轴向上分别连接所述侧边端部连接件及所述钩挂单元,所述第二侧边连接件分别与一个所述第一钩挂件及一个所述第二钩挂件连接。
- 根据权利要求1-9任意一项所述的管腔支架,其特征在于,所述管腔支架还包括主体支架,所述主体支架包括内腔,且所述主体支架的侧面径向向内凹陷形成凹槽,所述网盖与所述凹槽连接且所述网盖至少一部分和所述凹槽的底部在所述管腔支架的径向方向上形成径向间隔,所述径向间隔与所述内腔连通。
- 根据权利要求10所述的管腔支架,其特征在于,所述网盖通过多个侧边连接件与所述主体支架连接,相邻的两个所述侧边连接件之间形成的间隔与所述径向间隔连通。
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| CN111437087A (zh) * | 2020-04-02 | 2020-07-24 | 杭州唯强医疗科技有限公司 | 分叉支架 |
| CN114569300A (zh) * | 2020-12-02 | 2022-06-03 | 先健科技(深圳)有限公司 | 覆膜支架 |
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| AU2010254599B1 (en) * | 2010-12-15 | 2011-02-17 | Cook Incorporated | Hybrid Type A dissection device |
| CN109419568B (zh) * | 2017-08-28 | 2023-09-19 | 先健科技(深圳)有限公司 | 覆膜支架 |
| CN120605130A (zh) * | 2020-12-02 | 2025-09-09 | 先健科技(深圳)有限公司 | 覆膜支架 |
| FR3123798B1 (fr) * | 2021-06-10 | 2023-12-22 | Univ Claude Bernard Lyon | Endoprothese fenetree de l’aorte thoracique |
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2022
- 2022-12-29 CN CN202211709919.9A patent/CN118267203B/zh active Active
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| CN105662666A (zh) * | 2015-12-30 | 2016-06-15 | 先健科技(深圳)有限公司 | 管腔支架 |
| CN108013955A (zh) * | 2016-11-04 | 2018-05-11 | 先健科技(深圳)有限公司 | 血管支架 |
| CN109419566A (zh) * | 2017-08-28 | 2019-03-05 | 先健科技(深圳)有限公司 | 覆膜支架 |
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| CN114569300A (zh) * | 2020-12-02 | 2022-06-03 | 先健科技(深圳)有限公司 | 覆膜支架 |
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| CN118267203B (zh) | 2025-07-08 |
| EP4643825A4 (en) | 2026-04-15 |
| EP4643825A1 (en) | 2025-11-05 |
| CN118267203A (zh) | 2024-07-02 |
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