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CN208974229U - Vascular stent delivery device and system thereof - Google Patents

Vascular stent delivery device and system thereof Download PDF

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Publication number
CN208974229U
CN208974229U CN201820723985.4U CN201820723985U CN208974229U CN 208974229 U CN208974229 U CN 208974229U CN 201820723985 U CN201820723985 U CN 201820723985U CN 208974229 U CN208974229 U CN 208974229U
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CN
China
Prior art keywords
sub
stent
tube
positioning ring
vascular stent
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Expired - Fee Related
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CN201820723985.4U
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Chinese (zh)
Inventor
刘昌伟
李天佳
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Peking Union Medical College Hospital Chinese Academy of Medical Sciences
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Peking Union Medical College Hospital Chinese Academy of Medical Sciences
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Priority to CN201820723985.4U priority Critical patent/CN208974229U/en
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Abstract

The utility model relates to the field of medical instrument technology more particularly to a kind of intravascular stent conveying device and its systems.The intravascular stent conveying device is used to convey the intravascular stent including main support portion, the first sub-stent portion and the second sub-stent portion;Including outer tube, middle pipe and sub-stent guide member;The slidable housing of outer tube is on middle pipe;The both ends of sub-stent guide member are provided with sub-stent guide groove and sub-stent seal wire;Intravascular stent can be arranged in outer tube;Main support portion and the first sub-stent portion can housing on middle pipe, main support portion and the first sub-stent portion are located between the first positioning ring and the second positioning ring of middle pipe setting;Second sub-stent portion can be arranged in inside sub-stent guide groove.The intravascular stent transportation system includes intravascular stent and intravascular stent conveying device.The purpose of this utility model is to provide intravascular stent conveying device and its systems, with the structure of existing two brackets for being sent into bifurcated lesions blood vessel of simplification, and can simplify surgical operation step.

Description

Intravascular stent conveying device and its system
Technical field
The utility model relates to the field of medical instrument technology more particularly to a kind of intravascular stent conveying device and its systems.
Background technique
Intravascular stent refers to that on the basis of the forming of lumen balloon expandable, it is narrow to reach support to be placed in inner support in lesion Narrow occlusion section blood vessel reduces blood vessel elasticity retraction and moulding again, the purpose for keeping lumen blood flow unobstructed.Part inner support also has The effect of pre- anti-restenosis.
It is not only to be confined at one, but be located at blood vessel at the hemadostewnosis of many patients in actual clinic Many places.A kind of common many places arteriarctia is exactly bifurcated lesions blood vessel.2 brackets are distinguished using Crash technology at present It is sent into main blood vessel and branch vessel;Such as be sent into main blood vessel main support and be sent into branch vessel branch stent arrive simultaneously Position, branch stent is discharged in advance, discharges main support after withdrawing from the sacculus and seal wire of branch stent, last seal wire passes through bracket net Hole carries out sacculus to kiss technology after entering branch.
However the Crash technical operation is complicated, increases the risk of operation.
Therefore, the application provides a kind of new intravascular stent conveying device and its system regarding to the issue above, existing to simplify There is the structure for two brackets for being sent into bifurcated lesions blood vessel, and can simplify surgical operation step.
Utility model content
The purpose of this utility model is to provide intravascular stent conveying devices, with the existing feeding bifurcated lesions blood vessel of simplification The structure of two brackets, and can simplify surgical operation step.
The purpose of this utility model, which also resides in, provides intravascular stent transportation system, with the existing feeding bifurcated lesions blood vessel of simplification Two brackets structure, and can simplify surgical operation step.
Based on above-mentioned first purpose, intravascular stent conveying device provided by the utility model, the intravascular stent for conveying; The intravascular stent includes main support portion, the first sub-stent portion and the second sub-stent portion;The first end in first sub-stent portion and The first end in second sub-stent portion is connected to the same end in the main support portion respectively;
The intravascular stent conveying device includes outer tube, middle pipe and sub-stent guide member;The slidable housing of outer tube exists On the middle pipe;The middle pipe is fixedly installed the first positioning ring and the second positioning ring;First positioning ring and described second Positioning ring is between the middle pipe and the outer tube;
The sub-stent guide member is provided with sub-stent guide groove along the axial one end of itself, and the other end is fixedly connected Sub-stent seal wire;The sub-stent guide member is arranged between the middle pipe and the outer tube, and the sub-stent seal wire is far from institute The outer tube is stretched out in the one end for stating sub-stent guide member;
The intravascular stent can be arranged in the outer tube;Wherein, the main support portion and first sub-stent portion Can housing on the middle pipe, and the main support portion and first sub-stent portion are located at first positioning ring and described Between second positioning ring;Second sub-stent portion can be arranged in inside the sub-stent guide groove.
The optional technical solution of the utility model is, the intravascular stent conveying device further includes inner tube and guide pipe, The slidable housing of middle pipe is in said inner tube;First positioning ring is set to second positioning ring and the guiding Between pipe;
The distal end of said inner tube is fixedly connected with the guide pipe;The guide pipe is in cone.
The optional technical solution of the utility model is that the middle pipe includes the middle pipe holder principal part and middle pipe holder being connected Branch;The guide pipe, first positioning ring, the middle pipe holder principal part, the middle pipe holder branch and described second are determined Position ring is set gradually;
The middle pipe holder principal part is for main support portion described in housing;The middle pipe holder branch is for described in housing first Sub-stent portion;
The diameter of the middle pipe holder principal part is greater than the diameter of middle pipe holder branch described in housing.
The optional technical solution of the utility model is, it is recessed that the guide pipe close to one end of said inner tube is provided with guiding Slot;The guiding groove can accommodate first positioning ring.
The optional technical solution of the utility model is that said inner tube is provided with metal developing close to one end of the guide pipe Marker.
Based on above-mentioned second purpose, intravascular stent transportation system provided by the utility model, including intravascular stent and described Intravascular stent conveying device, the intravascular stent connect with the intravascular stent conveying device.
The optional technical solution of the utility model is that the corresponding second end in first sub-stent portion is wedge shaped or oblique Face, and/or, the corresponding second end in second sub-stent portion is wedge shaped or inclined-plane;
The second end in first sub-stent portion is provided with metal marker object, and/or, the second of second sub-stent portion End is provided with metal marker object.
The optional technical solution of the utility model is that the diameter in the main support portion is 6mm-10mm;
The diameter in first sub-stent portion is 4mm-5mm;
The diameter in second sub-stent portion is 4mm-6mm.
The optional technical solution of the utility model is that the length in first sub-stent portion is longer than second sub-stent portion Length;
Axial direction difference of the thickness of the tube wall in the main support portion along itself;
The thickness of the tube wall in first sub-stent portion along itself axial direction it is different, and/or, second sub-stent Axial direction difference of the thickness of the tube wall in portion along itself.
The optional technical solution of the utility model is that medication coat is coated with outside the intravascular stent.
The utility model has the beneficial effects that
Intravascular stent conveying device provided by the utility model, including outer tube, middle pipe and sub-stent guide member, by by blood The main support portion of pipe holder and the first sub-stent portion housing pass through the first positioning ring and the second positioning ring positioning master on middle pipe Cradle portion and the first sub-stent portion can be arranged in inside sub-stent guide groove by the second sub-stent portion of intravascular stent, And intravascular stent can be arranged in outer tube, when so that intravascular stent reaching preset bifurcated lesions blood vessel, can slide outer Pipe is to be compressed in main support portion and the first sub-stent portion between outer tube and inner tube in the intravascular release of master, by controlling sub-stent Seal wire, so that the second sub-stent portion enters branch vessel with sub-stent guide member and discharges in branch vessel.To sum up, the blood vessel It is intravascular that intravascular stent is sent directly into bifurcated lesions by stent conveying device, without 2 brackets are respectively fed to main blood vessel In branch vessel, surgical operation step can be simplified, the difficulty and risk of operation can also be reduced to a certain extent.
Intravascular stent transportation system provided by the utility model, including intravascular stent conveying device, can be by intravascular stent It is intravascular to be sent directly into bifurcated lesions, without 2 brackets are respectively fed in main blood vessel and branch vessel, to simplify operation Operating procedure can also reduce the difficulty and risk of operation to a certain extent.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of intravascular stent conveying device provided by the embodiment of the utility model;
Fig. 2 is the first structure diagram of intravascular stent provided by the embodiment of the utility model;
Fig. 3 is the second structural schematic diagram of intravascular stent provided by the embodiment of the utility model;
Fig. 4 is the third structural schematic diagram of intravascular stent provided by the embodiment of the utility model;
Fig. 5 is the 4th structural schematic diagram of intravascular stent provided by the embodiment of the utility model.
Icon: 100- intravascular stent;110- main support portion;The first sub-stent of 120- portion;The second sub-stent of 130- portion;140- Metal marker object;150- cell rings;160- connector;200- outer tube;It is managed in 300-;The first positioning ring of 310-;320- second is fixed Position ring;Pipe holder principal part in 330-;Pipe holder branch in 340-;400- inner tube;500- sub-stent guide member;510- sub-stent is led Draw groove;520- sub-stent seal wire;600- guide pipe;610- is oriented to groove.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection;It can be mechanical connection, be also possible to be electrically connected;Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.
Embodiment one
Referring to shown in Fig. 1-Fig. 5, a kind of intravascular stent conveying device is present embodiments provided;Fig. 1 be the present embodiment provides Intravascular stent conveying device structural schematic diagram;Fig. 2-Fig. 5 is the structural schematic diagram of intravascular stent.
Referring to shown in Fig. 1-Fig. 5, intravascular stent conveying device provided in this embodiment is suitable for bifurcated lesions blood vessel, especially It is suitable for the bifurcated vessels of femoral artery,common, femoral profound artery and femoral artery,superficial.
Intravascular stent of the intravascular stent conveying device for conveying;The intravascular stent 100 includes main support portion 110, the One sub-stent portion 120 and the second sub-stent portion 130;The first of the first end in the first sub-stent portion 120 and the second sub-stent portion 130 End is connected to the same end in main support portion 110 respectively;
The intravascular stent conveying device includes outer tube 200, middle pipe 300 and sub-stent guide member 500;Outer tube 200 is slidably Housing on middle pipe 300;Middle pipe 300 is fixedly installed the first positioning ring 310 and the second positioning ring 320;First positioning ring 310 And second positioning ring 320 between middle pipe 300 and outer tube 200.First positioning ring 310 and the second positioning ring 320 are for example, convex For the ring of middle pipe 300.
Sub-stent guide member 500 is provided with sub-stent guide groove 510 along the axial one end of itself, and the other end is fixed to be connected Connect sub-stent seal wire 520;Sub-stent guide member 500 is arranged between middle pipe 300 and outer tube 200, and separate point of sub-stent seal wire 520 Outer tube 200 is stretched out in one end of bracket guide member 500;By sub-stent seal wire 520, sub-stent guide member 500 is pulled out into human body.
Intravascular stent 100 can be arranged in outer tube 200;Wherein, main support portion 110 and the first sub-stent portion 120 can Housing is on middle pipe 300, and main support portion 110 and the first sub-stent portion 120 are located at the first positioning ring 310 and the second positioning ring Between 320;Second sub-stent portion 130 can be arranged in inside sub-stent guide groove 510.It should be noted that intravascular stent 100 main support portion 110 and the first sub-stent are compressed between outer tube 200 and middle pipe 300, the second branch of intravascular stent 100 Frame portion 130 is compressed in inside sub-stent guide groove 510.
Intravascular stent conveying device described in the present embodiment, including outer tube 200, middle pipe 300 and sub-stent guide member 500, By the way that the main support portion 110 of intravascular stent 100 and 120 housing of the first sub-stent portion are positioned on middle pipe 300, and by first Ring 310 and the second positioning ring 320 positioning main support portion 110 and the first sub-stent portion 120, pass through second point of intravascular stent 100 Cradle portion 130 can be arranged in inside sub-stent guide groove 510 and intravascular stent 100 can be arranged in outer tube 200, When so that intravascular stent 100 reaching preset bifurcated lesions blood vessel, outer tube 200 can be slided to be compressed in the intravascular release of master Main support portion 110 and the first sub-stent portion 120 between outer tube 200 and middle pipe 300, by controlling sub-stent seal wire 520, so that Second sub-stent portion 130 enters branch vessel with sub-stent guide member 500 and discharges in branch vessel.To sum up, the blood vessel branch It is intravascular that intravascular stent 100 is sent directly into bifurcated lesions by frame conveying device, without 2 brackets are respectively fed to main blood vessel In branch vessel, surgical operation step can be simplified, the difficulty and risk of operation can also be reduced to a certain extent.
For example, the bilateral femoral arterial in patient is dissected respectively, sub-stent seal wire 520 is sent into from side solution groove, from right Side solves groove and pulls out;Intravascular stent conveying device is sent into diseased region along ipsilateral solution groove, is then pulled outwardly outer tube 200, Main support portion 110 and the first sub-stent portion 120 are released in main blood vessel;Sub-stent seal wire 520 is drawn to external, until complete It is complete to pull out in vitro, by the release of the second sub-stent portion 130 in branch vessel.
In the optinal plan of the present embodiment, the intravascular stent conveying device includes inner tube 400 and guide pipe 600, middle pipe 300 slidable housings are in inner tube 400;First positioning ring 310 is set between the second positioning ring 320 and guide pipe 600;
The distal end of inner tube 400 is fixedly connected with guide pipe 600;Guide pipe 600 is in cone.By in conical guide pipe 600, it is intravascular in order to enter intravascular stent conveying device, and then it is convenient for delivery of vascular bracket 100.By inner tube 400, with Convenient for the objects such as seal wire are arranged into inner tube 400.
In the optinal plan of the present embodiment, middle pipe 300 includes the middle pipe holder principal part 330 being connected and middle pipe holder branch 340;Guide pipe 600, the first positioning ring 310, middle pipe holder principal part 330, middle pipe holder branch 340 and the second positioning ring 320 according to Secondary setting.
Middle pipe holder principal part 330 is used for housing main support portion 110;Middle pipe holder branch 340 is used for the first sub-stent of housing Portion 120.
The diameter of middle pipe holder principal part 330 is greater than the diameter of pipe holder branch 340 in housing;In order to middle pipe 300 and blood The shape in the main support portion 110 of pipe holder 100 and the first sub-stent portion 120 is adapted, to be preferably socketed intravascular stent 100 Main support portion 110 and the first sub-stent portion 120.
In the optinal plan of the present embodiment, guide pipe 600 is provided with guiding groove 610 close to one end of inner tube 400;Guiding Groove 610 can accommodate the first positioning ring 310.By being oriented to groove 610, so that middle pipe 300 preferably connects with guide pipe 600 It connects.
In the optinal plan of the present embodiment, inner tube 400 is provided with metal developing marker close to one end of guide pipe 600. By metal developing marker, the position of blood vessel is entered in order to identify inner tube 400 close to one end of guide pipe 600.
The present embodiment additionally provides a kind of intravascular stent transportation system, including intravascular stent 100 and intravascular stent above-mentioned Conveying device.Intravascular stent is connect with intravascular stent conveying device.Optionally, intravascular stent 100 is suitable for bifurcated lesions blood vessel, It is particularly suitable for the bifurcated vessels of femoral artery,common, femoral profound artery, femoral artery,superficial.
Optionally, the corresponding second end in the first sub-stent portion 120 is wedge shaped or inclined-plane, and/or, the second sub-stent portion 130 corresponding second ends are wedge shaped or inclined-plane.That is, the corresponding second end in the first sub-stent portion 120 it is wedge shaped or Inclined-plane;Alternatively, the corresponding second end in the second sub-stent portion 130 is wedge shaped or inclined-plane;Alternatively, the first sub-stent portion 120 is corresponding The corresponding second end in the wedge shaped perhaps inclined-plane of second end and the second sub-stent portion 130 is wedge shaped or inclined-plane.Fig. 2 and Fig. 4 The second end for showing the first sub-stent portion 120 is wedge shaped, and the second end in the second sub-stent portion 130 is wedge shaped;Fig. 3 show The second end in one sub-stent portion 120 is in inclined-plane, and the second end in the second sub-stent portion 130 is in inclined-plane.
Optionally, the angle of inclined-plane and the axial direction in the first sub-stent portion 120 is between 0~90 degree, alternatively, inclined-plane with The angle of the axial direction in the second sub-stent portion 130 is between 0~90 degree.Preferably, the axis on inclined-plane and the first sub-stent portion 120 It is 45 degree to the angle in direction, alternatively, the angle of inclined-plane and the axial direction in the second sub-stent portion 130 is 45 degree.
Intravascular stent described in the present embodiment includes main support portion 110, the first sub-stent portion 120 and the second sub-stent portion 130 namely intravascular stent be branch type, with bifurcated lesions shape of blood vessel be adapted, can directly be sent by the intravascular stent It is intravascular to enter bifurcated lesions, without 2 brackets are respectively fed in main blood vessel and branch vessel, operation behaviour can be simplified Make step.By the corresponding second end in the first sub-stent portion 120 is wedge shaped or inclined-plane and/or the second sub-stent portion 130 it is corresponding Second end is wedge shaped or inclined-plane, it is preset in order to which the first sub-stent portion 120 and/or the second sub-stent portion 130 to be sent into In bifurcated vessels, to reduce the difficulty of operation, the risk of operation is reduced.To sum up, the intravascular stent structure is relatively easy, Neng Goujian Change surgical operation step.
Shown in Figure 4, in the optinal plan of the present embodiment, the second end in the first sub-stent portion 120 is provided with metal mark Remember object 140, and/or, the second end in the second sub-stent portion 130 is provided with metal marker object 140.That is, the first sub-stent The second end in portion 120 is provided with metal marker object 140;Alternatively, the second end in the second sub-stent portion 130 is provided with metal marker object 140;Alternatively, the second end in the first sub-stent portion 120 is provided with the second of metal marker object 140 and the second sub-stent portion 130 End is provided with metal marker object 140.Preferably, the second end in the first sub-stent portion 120 is provided with metal marker object 140, and The second end in the second sub-stent portion 130 is provided with metal marker object 140, comes in order to which metal marker object 140 develops under X-ray The specific location of the second end in the first sub-stent portion 120, the second end in the second sub-stent portion 130 is identified, in order to discharge blood vessel Bracket, so that intravascular stent can more accurately be discharged into the predeterminated position of lesion vessels.
In the optinal plan of the present embodiment, the quantity of metal marker object 140 is multiple.
Optionally, the second end in the first sub-stent portion 120 uniformly distributed has multiple metal marker objects along the circumferential direction of itself 140.The second end in the first sub-stent portion 120 for example can be with along the quantity of the uniformly distributed metal marker object 140 of the circumferential direction of itself It is 2,3,4,6 etc..
Optionally, the second end in the second sub-stent portion 130 uniformly distributed has multiple metal marker objects along the circumferential direction of itself 140.The second end in the second sub-stent portion 130 for example can be with along the quantity of the uniformly distributed metal marker object 140 of the circumferential direction of itself It is 2,3,4,6 etc..
Optionally, the junction in the first sub-stent portion 120 and the second sub-stent portion 130 and main support portion 110 is provided with gold Belong to marker 140, in order to discharge intravascular stent, so that intravascular stent can more accurately be discharged into the default of lesion vessels Position.
Optionally, main support portion 110 is provided with metal marker object 140 far from the one end in the first sub-stent portion 120.
In the optinal plan of the present embodiment, main support portion 110, the first sub-stent portion 120 and the second sub-stent portion 130 are wrapped Include multiple cell rings 150 and connector 160.
It is connected between adjacent cells ring 150 by connector 160.
Axial direction row of multiple cell rings 150 along main support portion 110, the first sub-stent portion 120 or the second sub-stent portion 130 Column.Optionally, cell rings 150 are made of medical alloy material;Further, cell rings 150 be by medical alloy material into Row bending is formed by Z-shaped configuration or braiding structure.
Optionally, the material of cell rings 150 is niti-shaped memorial alloy, NiTi superelastic alloy, cobalt chromium dynamax Or 316L medical stainless steel alloy;It will be appreciated by persons skilled in the art that cell rings 150 can also use other materials Material.Wherein, 316L medical stainless steel alloy is the most frequently used in the medical surgery and maximum implantable metal material of usage amount, usually It is made of vacuum metling, corrosion resistance is preferable;Niti-shaped memorial alloy has stronger wear-resisting, corrosion resistance, tissue Compatibility is good, and long-term merging has no toxic side effect in vivo, can substantially reduce thrombosis to a certain extent.
In the optinal plan of the present embodiment, the cell rings 150 in the first sub-stent portion 120 and the second sub-stent portion 130 it is close Degree is greater than the density of the cell rings 150 in main support portion 110;In order to which the first sub-stent portion 120 and the second sub-stent portion 130 is defeated It send to preset lesion locations.
In the optinal plan of the present embodiment, main support portion 110, the first sub-stent portion 120 and the second sub-stent portion 130 are wrapped Include set film layer (not shown).
Film layer housing is covered in the outside of multiple cell rings 150.
The material for covering film layer is medical macromolecular materials;Optionally, medical macromolecular materials can for example spin for polyamide Fabric, polypropylene spun fabric, polyester woven object, polytetrafluoroethylene (PTFE) etc..
In the optinal plan of the present embodiment, the diameter in main support portion 110 is 6mm-10mm.
Optionally, the diameter in the first sub-stent portion 120 is 4mm-5mm.
Optionally, the diameter in the second sub-stent portion 130 is 4mm-6mm.
In the optinal plan of the present embodiment, the length in the first sub-stent portion 120 is longer than the length in the second sub-stent portion 130.
In the optinal plan of the present embodiment, the thickness of the tube wall in main support portion 110 along itself axial direction it is different;So that The biggish position of pipe thickness ensure that intravascular stent support strength with higher and good development effect, to be placed in blood vessel Bracket provides good guarantee;At the lesser position of pipe thickness, compression strength is low, and the soft of intravascular stent can be improved It is pliable, it can be good at complying with the shape of blood vessel after intravascular stent expansion.
Optionally, the thickness of the tube wall in main support portion 110 is along the axial direction of itself in regular variation.
Optionally, the thickness of the tube wall in the first sub-stent portion 120 is different along the axial direction of itself.Optionally, first point The thickness of the tube wall of cradle portion 120 is in regular variation along the axial direction of itself.
Optionally, the thickness of the tube wall in the second sub-stent portion 130 is different along the axial direction of itself.Optionally, second point The thickness of the tube wall of cradle portion 130 is in regular variation along the axial direction of itself.
In order to more be apparent from the present embodiment, citing is illustrated.Such as main support portion 110 is total for being placed on stock At artery, the first sub-stent portion 120 is for being placed at femoral profound artery, and the second sub-stent portion 130 is for being placed on femoral artery,superficial Place.The length in the first sub-stent portion 120 is longer than the length in the second sub-stent portion 130;The diameter in the first sub-stent portion 120 be less than or Person is equal to the diameter in the second sub-stent portion 130.
Optionally, medication coat is coated with outside intravascular stent 100.By medication coat, so that intravascular stent is with specific Therapeutic effect.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited System;Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of Technical characteristic is equivalently replaced;And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new The range of each embodiment technical solution of type.

Claims (10)

1.一种血管支架输送装置,其特征在于,用于输送的血管支架;该血管支架包括主支架部、第一分支架部和第二分支架部;所述第一分支架部的第一端和所述第二分支架部的第一端分别与所述主支架部的同一端连通;1. A vascular stent delivery device, characterized in that, a vascular stent for delivery; the vascular stent comprises a main stent part, a first sub-support part and a second sub-support part; the first part of the first sub-support part The end and the first end of the second sub-bracket part are respectively communicated with the same end of the main bracket part; 该血管支架输送装置包括外管、中管和分支架导引件;所述外管可滑动的外套在所述中管上;所述中管固定设置有第一定位环和第二定位环;所述第一定位环和所述第二定位环位于所述中管与所述外管之间;The vascular stent delivery device includes an outer tube, a middle tube and a sub-stent guide; the outer tube is slidably covered on the middle tube; the middle tube is fixedly provided with a first positioning ring and a second positioning ring; the first positioning ring and the second positioning ring are located between the middle pipe and the outer pipe; 所述分支架导引件沿自身的轴向的一端设置有分支架导引凹槽,另一端固定连接分支架导丝;所述分支架导引件设置在所述中管与所述外管之间,所述分支架导丝远离所述分支架导引件的一端伸出所述外管;One end of the sub-bracket guide along its own axis is provided with a sub-bracket guiding groove, and the other end is fixedly connected to the sub-bracket guide wire; the sub-bracket guide is arranged on the middle tube and the outer tube. In between, one end of the sub-bracket guide wire away from the sub-bracket guide member extends out of the outer tube; 所述血管支架能够设置在所述外管内;其中,所述主支架部和所述第一分支架部能够外套在所述中管上,且所述主支架部和所述第一分支架部位于所述第一定位环和所述第二定位环之间;所述第二分支架部能够设置在所述分支架导引凹槽内部。The blood vessel stent can be arranged in the outer tube; wherein, the main support part and the first sub-support part can be sheathed on the middle tube, and the main support part and the first sub-support part is located between the first positioning ring and the second positioning ring; the second sub-bracket part can be arranged inside the sub-bracket guiding groove. 2.根据权利要求1所述的血管支架输送装置,其特征在于,还包括内管和导向管,所述中管可滑动的外套在所述内管上;所述第一定位环设置于所述第二定位环与所述导向管之间;2 . The vascular stent delivery device according to claim 1 , further comprising an inner tube and a guide tube, wherein the slidable outer sleeve of the middle tube is on the inner tube; the first positioning ring is arranged on the inner tube. 3 . between the second positioning ring and the guide tube; 所述内管的远端固定连接所述导向管;所述导向管呈圆锥形。The distal end of the inner tube is fixedly connected to the guide tube; the guide tube is conical. 3.根据权利要求2所述的血管支架输送装置,其特征在于,所述中管包括相连通的中管支架主部和中管支架支部;所述导向管、所述第一定位环、所述中管支架主部、所述中管支架支部和所述第二定位环依次设置;3 . The vascular stent delivery device according to claim 2 , wherein the middle tube comprises a main part of the middle tube stent and a branch part of the middle tube stent that are communicated with each other; the guide tube, the first positioning ring, the The main part of the middle pipe support, the branch part of the middle pipe support and the second positioning ring are arranged in sequence; 所述中管支架主部用于外套所述主支架部;所述中管支架支部用于外套所述第一分支架部;The main part of the middle pipe support is used to cover the main support part; the branch part of the middle pipe support is used to cover the first sub-support part; 所述中管支架主部的直径大于外套所述中管支架支部的直径。The diameter of the main part of the middle tube bracket is larger than the diameter of the branch part of the outer tube bracket. 4.根据权利要求2所述的血管支架输送装置,其特征在于,所述导向管靠近所述内管的一端设置有导向凹槽;所述导向凹槽能够容纳所述第一定位环。4 . The vascular stent delivery device according to claim 2 , wherein a guide groove is provided at one end of the guide tube close to the inner tube; the guide groove can accommodate the first positioning ring. 5 . 5.根据权利要求2所述的血管支架输送装置,其特征在于,所述内管靠近所述导向管的一端设置有金属显影标记物。5 . The stent delivery device according to claim 2 , wherein a metal imaging marker is provided at one end of the inner tube close to the guide tube. 6 . 6.一种血管支架输送系统,其特征在于,包括血管支架和权利要求1-5任一项所述的血管支架输送装置,所述血管支架与所述血管支架输送装置连接。6. A vascular stent delivery system, comprising a vascular stent and the vascular stent delivery device according to any one of claims 1-5, wherein the vascular stent is connected to the vascular stent delivery device. 7.根据权利要求6所述的血管支架输送系统,其特征在于,所述第一分支架部相应的第二端呈楔形或者斜面,和/或,所述第二分支架部相应的第二端呈楔形或者斜面;7. The vascular stent delivery system according to claim 6, wherein the corresponding second ends of the first sub-support parts are wedge-shaped or inclined, and/or, the corresponding second ends of the second sub-support parts are The ends are wedge-shaped or beveled; 所述第一分支架部的第二端设置有金属标记物,和/或,所述第二分支架部的第二端设置有金属标记物。The second end of the first sub-support portion is provided with a metal marker, and/or the second end of the second sub-support portion is provided with a metal marker. 8.根据权利要求6所述的血管支架输送系统,其特征在于,所述主支架部的直径为6mm-10mm;8. The vascular stent delivery system according to claim 6, wherein the diameter of the main stent portion is 6mm-10mm; 所述第一分支架部的直径为4mm-5mm;The diameter of the first sub-support portion is 4mm-5mm; 所述第二分支架部的直径为4mm-6mm。The diameter of the second bracket part is 4mm-6mm. 9.根据权利要求6所述的血管支架输送系统,其特征在于,所述第一分支架部的长度长于所述第二分支架部的长度;9 . The vascular stent delivery system according to claim 6 , wherein the length of the first stent sub-section is longer than the length of the second stent sub-section; 10 . 所述主支架部的管壁的厚度沿自身的轴向方向不同;The thickness of the tube wall of the main support portion is different along its own axial direction; 所述第一分支架部的管壁的厚度沿自身的轴向方向不同,和/或,所述第二分支架部的管壁的厚度沿自身的轴向方向不同。The thickness of the tube wall of the first sub-support portion is different along its own axial direction, and/or the thickness of the tube wall of the second sub-support portion is different along its own axial direction. 10.根据权利要求6所述的血管支架输送系统,其特征在于,所述血管支架外涂设有药物涂层。10. The vascular stent delivery system according to claim 6, wherein the vascular stent is coated with a drug coating.
CN201820723985.4U 2018-05-15 2018-05-15 Vascular stent delivery device and system thereof Expired - Fee Related CN208974229U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113397777A (en) * 2020-03-16 2021-09-17 施吉生技应材股份有限公司 Blood vessel stent marker setting device and setting method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113397777A (en) * 2020-03-16 2021-09-17 施吉生技应材股份有限公司 Blood vessel stent marker setting device and setting method thereof

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