CN203935305U - The accurate implant system of support of branch vessel - Google Patents
The accurate implant system of support of branch vessel Download PDFInfo
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- CN203935305U CN203935305U CN201420348083.9U CN201420348083U CN203935305U CN 203935305 U CN203935305 U CN 203935305U CN 201420348083 U CN201420348083 U CN 201420348083U CN 203935305 U CN203935305 U CN 203935305U
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- support
- implant system
- branch vessel
- lead sheath
- blood vessel
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Abstract
The utility model discloses a kind of accurate implant system of support of branch vessel, branch vessel comprises the main blood vessel (101) being interconnected and the branch vessel (102) being communicated with this main blood vessel, the accurate implant system of described support comprises storage support (104) releasedly and carries the stent conveying device (103) of this support, extend to the guiding wire (105) of branch vessel from main blood vessel, and the positioning guide wire (106) extending along main blood vessel, described stent conveying device is set in outside guiding wire movably, on its medium-height trestle, be provided with spacing hole (1061), positioning guide wire is slidably through this spacing hole.Because branch's seal wire can be stuck in the opening part of branch vessel after support enters branch vessel, thereby can be on axial and circumferential locating support, thereby support can accurately be implanted in branch vessel, especially accurately fit in opening portion, therefore effective with the laminating of branch vessel.
Description
Technical field
This utility model relates to the support of branch vessel and implants field, particularly, relates to a kind of accurate implant system of support of branch vessel.
Background technology
Along with the arriving of aging society, more and more for the application of the intravascular stent of radial support generation artery-clogging.Wherein, also different with kind, structure and the implantation of implantation position and the sick different blood vessel support of planting for the treatment of.At present, widely used support comprises bare bracket, coating bracket and overlay film frame, and the expansion mode of support can be divided into ball and expand mode and from swollen mode.And implantation mostly is the support after compression is launched after guiding to implantation position by seal wire again.Wherein, it is by withdrawing from after support is expanded to being arranged in the spherical air bag topping up (gas) that is preset at internal stent that ball extends mode, be by after the lead sheath of the compressed support of storage is withdrawn from swollen expansion mode, flick by the elastic construction of support self.Be no matter wherein that ball expands or from the implantation of swollen mode, all have the accurate location of support and adapt to the problem of multiple blood vessel structure.For example have the opening portion of branch vessel structure of branch vessel, not only the structure of intravascular stent itself needs particular design, and implantation also needs to improve accordingly the object that can meet at this type of accurate implant frame in position.This is the also difference of circumferential structure due to the structure that the coupling part of branch vessel and main blood vessel is opening portion with arc-shaped transition structure and blood vessel, and there is the problem that is difficult to the coupling part structure that adapts to branch vessel structure in this body structure of intravascular stent of the prior art, and while also all there is reply branch vessel in corresponding implantation axially, the circumferential poor problem of positioning precision, thereby after causing support to implant there is the problem of blood vessel blockage in poor effect even again.
Utility model content
The purpose of this utility model is to provide a kind of accurate implant system of support of branch vessel, and the accurate implant system of this support can make support accurately be implanted in branch vessel.
To achieve these goals, this utility model provides a kind of support of branch vessel accurate implant system, described branch vessel comprises the main blood vessel being interconnected and the branch vessel being communicated with this main blood vessel, the accurate implant system of described support comprises storage support releasedly and carries the stent conveying device of this support, extend to the guiding wire of described branch vessel from described main blood vessel, and the positioning guide wire extending along described main blood vessel, described stent conveying device is set in outside described guiding wire movably, on described support, be provided with spacing hole, described positioning guide wire is slidably through this spacing hole.
Preferably, described spacing hole is formed by the spacing ring being connected on described support.
Preferably, described stent conveying device comprises leading core, lead plunger tip outside core described in being set in slidably, receive the first lead sheath of described support front end and receiving the second lead sheath of described back-end support of can moving along seal wire, described in described the first lead sheath is connected to, lead on core and rear end opening, described the second lead sheath front end is open, and described plunger tip is set in slidably in described the second lead sheath and supports the rear end of described support.
Preferably, the front end of described the first lead sheath is led core described in sealing and being connected in.
Preferably, the front end of described the first lead sheath is formed as having the target seeker of streamlined structure.
Preferably, the accurate implant system of described support also comprises multiple control device, described the second lead sheath, described plunger tip and described in lead core and extend back and be connected to described control device separately.
Preferably, the front end size of described the second lead sheath is less than the rear end size of described the first lead sheath and seamlessly transits.
Preferably, described support has main part and is positioned at the peristome of this main part rear end, and described main part is formed as straight tube structure, and described peristome is formed as horn-type structure.
Preferably, described support has main part and is positioned at the peristome of this main part rear end, and described main part is formed as straight tube structure, and the plane of the opening of described peristome is obliquely installed with respect to the axis of described main part.
Preferably, described spacing hole is formed on rear end or the peristome of described main part.
Pass through technique scheme, because branch's seal wire can be stuck in the opening part of branch vessel after support enters branch vessel, thereby can be on axial and circumferential locating support, thereby support can accurately be implanted in branch vessel, especially accurately fit in opening portion, therefore effective with the laminating of branch vessel.
Other feature and advantage of the present utility model are described in detail the detailed description of the invention part subsequently.
Brief description of the drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and forms a part for description, is used from explanation this utility model, but does not form restriction of the present utility model with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the accurate implant system of support of the branch vessel with horn-type opening that provides of this utility model preferred implementation structural representation in implantation process;
Fig. 2 is the structure for amplifying schematic diagram of A portion in Fig. 1;
Fig. 3 is that the support with angular cut adopting in this utility model preferred implementation is implanted in the structural representation in branch vessel.
Description of reference numerals
101 main blood vessel 102 branch vessels
103 stent conveying device 104 supports
105 guiding wire 106 positioning guide wires
107 lead core 108 plunger tips
109 first lead sheath 110 second lead sheaths
1041 main part 1042 peristomes
1061 spacing hole 1091 target seekers
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is elaborated.Should be understood that, detailed description of the invention described herein only, for description and interpretation this utility model, is not limited to this utility model.
In this utility model, in the situation that not doing contrary explanation, the noun of locality using typically refers to the interior and outer of respective objects profile as " inside and outside ", " far away, near " is the far and near positions of certain parts with respect to another parts, " forward and backward " normally the implantation direction taking support and associated components along blood vessel as basis definition, that is, corresponding component moves forward into blood vessel, the blood vessel of drawing back out.These nouns of locality, only for this utility model is described, are not limited to this utility model.
As shown in Figure 1, in intravascular stent implant surgery, usually can run into and there is the branch vessel of branch, the branch vessel 102 that this branch vessel comprises main blood vessel 101 and is communicated with this main blood vessel 101, be that branch vessel 102 is connected on the sidewall of main blood vessel 101, because the join domain between branch vessel 102 and main blood vessel 101 has arc-shaped transition, make the size of the opening of the main blood vessel 101 of approaching of branch vessel 102 present abducent flared structure, if implant so existing straight barrel type support, to make support can not fit in good condition blood vessel wall at branch vessel 102 opening parts, like this thereby the support and the blood vessel wall formation thrombosis that make this region are caused to vascular lesion.Therefore, need to use a kind of horn opening support, the opening of this support is formed as outside open tubaeform, thereby can fit in well the opening transitional region of the branch vessel 102 of branch vessel for example.In addition, in the time thering is angle of inclination between branch vessel 102 and main blood vessel 101, if still use straight barrel type support, behind support location, between open rearward end will partly stretch in main blood vessel 101, can cause like this obstruction to main blood vessel 101, therefore need a kind of support with angular cut can adapt to the branch vessel 102 of inclination.But, no matter be tubaeform or the opening of angular cut structure, all will face need to be by the accurately problem of location of the circumferential direction of support, otherwise the shape of the opening that can not adapt to branch vessel 102 in circumferential direction causes support weak effect.Therefore,, in implantation process, the circumferential direction to support and the control of axial location all have high requirement.Accordingly, as shown in Figure 1, this utility model provides the accurate implant system of a kind of support for branch vessel and method, can effectively ensure the axial location of support and the accurate location of circumferential direction.
Wherein, as shown in Figure 1, in one embodiment, need the support 104 of implanting to comprise main part 1041 and the peristome 1042 that is positioned at main part 1041 rear ends, main part 1041 is formed as straight tube structure to adapt to the blood vessel wall of respective branch blood vessel, and peristome 1042 is formed as outwards open flared structure to adapt to the opening of branch vessel, particularly, peristome 1042 is formed as outwards open arc-shaped transition structure, to adapt to the shape of branch vessel opening.Wherein the concrete structure of this flared structure need to depend on the structure of implanted branch vessel 202 openings, all drops in protection domain of the present utility model for various distortion.
In addition, except this support with horn opening structure, as shown in Figure 3, in another in embodiment, the peristome 1042 of support 104 can be formed as angular cut structure, that is, the plane of the opening of peristome 1042 is obliquely installed with respect to the axis of main part 1041.Like this, this angular cut cribbing can accurately adapt to the opening of the branch vessel being obliquely installed, and causes main blood vessel blockage and can not charge into like that as shown by dashed lines in main blood vessel.And can use the reason of this angular cut support, the accurate implant system of support that having benefited from equally this utility model provides can be realized the accurate location of support at circumferential direction and axial location.Thereby the support that makes this utility model be more applicable for branch vessel is implanted.Wherein the plane of the opening of flaring peristome 1042 as shown in Figure 1 also can also be formed as to the form of cutting sth. askew, also should drop in protection domain of the present utility model for this type of embodiment.
In order to guarantee that this support 104 is accurately delivered to branch vessel, design of the present utility model is to utilize the special construction of branch vessel, on the basis of the guiding wire 105 of guide support conveyer device 103, increase positioning guide wire 106, to realize the location in axial location and circumferential direction to support by positioning guide wire 106.Particularly, positioning guide wire 106 is being introduced after main blood vessel 101 and will drawn from passing different paths from guiding wire 105, as shown in Figure 1, guiding wire 105 extends to branch vessel 102 from main blood vessel 101 is introduced, positioning guide wire 106 extends along main blood vessel 101 always, and implant system also comprises the spacing hole 1061 that is fixedly installed and supplies positioning guide wire 106 to pass slidably with respect to support 104, particularly, as shown in Figure 2, this spacing hole 1061 is arranged on support 104.Like this, the support 104 moving along guiding wire 105 and stent conveying device 103 are entering after branch vessel 102, due to the existence of positioning guide wire 106, positioning guide wire 106 can be stuck in the porch of branch vessel 102, therefore the position of spacing hole 1061 place supports 104 cannot enter branch vessel 102, thereby the accurate location of support 104 in the axial direction along branch vessel 102 can be provided.Equally, positioning guide wire 106 is after tension, spacing hole 1061 determines equally with respect to the circumferential direction of support 102, also accurate location of the circumferential direction that therefore can make support 104, thus the circumferential profile that realizes support 104 can accurately be fitted with the special construction of blood vessel wall.
Wherein, spacing hole 1061 is formed on the position that position on support 104 can be depended on the shape of support 104 and enter branch vessel 102, in the present embodiment, need in the opening transitional region of flaring peristome 1042 laminatings and branch vessel 102 and main blood vessel 101, therefore spacing hole 1061 can be formed on to the rear end of main part 1041, can make like this main part 1041 of support 104 enter in branch vessel 102 by being stuck in the positioning guide wire 106 of branch vessel 102 entrances, its peristome 1041 is corresponding with opening arc transitional region, thereby realize the accurate location of support at axial location.Change in location for the spacing hole 1061 in order to adapt to specific blood vessels all drops in protection domain of the present utility model.
In addition, in order not affect the function of support 104, as shown in Figure 2, the spacing hole 106 in this utility model preferred implementation is formed by the spacing ring being connected on support 104, can be used in constraint positioning guide wire 106.This spacing ring small-sized can be directly with in support 104 implant into body and can not affect the function of support 104.In addition, spacing hole 106 also can directly be formed by support 104 structures own, all drops in protection domain of the present utility model for this mode of texturing.
It should be noted that, the embodiment that can realize above-mentioned utility model design has multiple, such as support enters the concrete structure of branch vessel 102 stent conveying device 103 used etc., this utility model for convenience of description, introduce preferred implementation wherein at this, this preferred implementation, only for this utility model is described, is not limited to this utility model.
In preferred implementation of the present utility model, in order to realize better the conveying of the support 104 to having horn opening or angular cut, the support 104 that this utility model adopts is from swollen support, and, after releasing bracket 104, it can automatically spring open.Thisly to flick in process and keeping precision from swollen support in order to tackle better, the storage support releasedly 104 that this utility model provides the stent conveying device 103 of carrying this support 104 adopt the mode of segmentation storage and release, as shown in Figure 1, for support 104 is directed in branch vessel 102, stent conveying device 103 is set in outside guiding wire 105 movably, and comprise can move along seal wire lead core 107, be set in slidably the plunger tip 108 of leading outside core 107, the first lead sheath 109 of storage support 104 front ends and the second lead sheath 110 of storage support 104 rear ends, the first lead sheath 109 is connected to leads on core 107 and rear end opening, the second lead sheath 110 front ends are open, plunger tip 108 is set in slidably in described the second lead sheath 110 and supports the rear end of support 104.Therefore by receiving respectively the first lead sheath 109 and second lead sheath 110 of main part 1041 and branching portion 1042, in the time of releasing bracket, release respectively that can realization body portion 1041 and 1042, thus the elasticity from swollen support controlled well, ensure position and the directional precision of support.Hereinafter conveying and the dispose procedure of support 104 will specifically be introduced.
Wherein, the front end of the first lead sheath seal and be connected in lead core 107 with lead core 107 and be synchronized with the movement.More preferably; the front end of this sealing is formed as target seeker 1091; this target seeker 1091 can be formed as cone shape etc. and be beneficial to the proal streamlined structure of the first lead sheath 109; this target seeker 1091 and the first lead sheath 109 are one-body molded; in addition target seeker 1091 can also form respectively with the first lead sheath 109 and be positioned at the front of the first lead sheath 109, also should drop in protection domain of the present utility model for this mode of texturing.Wherein, to be enclosed within, guiding wire 105 is outer also can be moved along guiding wire 105 for hollow-core construction to lead core 107, leads core 107 can be manipulated to extend rearward to external mode, for example the control device of connector outer end.
In addition, the interval between the front end of the second lead sheath 110 and the front end of plunger tip 108 is for the peristome 1042 of storage support 104, and rear end extends back and can be manipulated to extend to external mode along main blood vessel 101, for example control device of connector outer end.Wherein, in order to realize releasing bracket 104 respectively, the rear end of the front end of the second lead sheath 110 and the first lead sheath 109 does not have annexation, for example smooth and easy in order to move forward, the front end size design of the second lead sheath 110 can be less than to the rear end size of the first lead sheath 109, and the front end of the second lead sheath 110 and the rear end of the first lead sheath 109 are seamlessly transitted.So effectively avoid the front end of the second lead sheath 110 to scrape the problem of blood vessel wall, protected better blood vessel wall.
It should be noted that the existence due to positioning guide wire 106, the relative position that the first lead sheath 109 and the second lead sheath 110 have need to ensure to pass freely through through the positioning guide wire 106 in support 104 upper limit holes 1061, between the two, has certain gap.In some embodiment, the front end of the second lead sheath 110 can be embedded in the rear end of the first lead sheath 109, now can on the first lead sheath 109 and/or the second lead sheath 110, form the through hole passing for positioning guide wire 106.All drop in protection domain of the present utility model for this mode of texturing.
Plunger tip 108 is for ensureing the position stability at conveying and releasing process medium-height trestle 104, and its front end face is for supporting the peristome 1042 of support 104, and plunger tip 108 can be manipulated to extend rearward to external mode equally, the control device of for example external end.
The above-mentioned structure of having introduced the implant system that this utility model provides, introduces implant system that this utility model provides below in detail at the method for implantation that support 104 is installed to branch vessel 102.
First,, in preparation process, guiding wire 105 is introduced and extended to branch vessel 102 from main blood vessel 101, and support 104 compresses to be accommodated in the first lead sheath 109 and the second lead sheath 110.And positioning guide wire 106 is extended through the main blood vessel 101 of spacing hole 1061 tailing edge.
Then, carry out support 104 to introduce the step of branch vessel 102, first, operation control device is separately led core 107, plunger tip 108 and the second lead sheath 110 with control and is moved forward in blood vessel inter-sync along guiding wire 105, wherein, drive the first lead sheath 109 to move by leading core 107, move into branch vessel 102 with the main part 1041 that ensures the support 104 that the first lead sheath 109 received.Now, in the time that the back-end location of spacing hole 1061 place main parts 1041 arrives the entrance of branch vessel 102, positioning guide wire 106 can keep off the porch at branch vessel 102, thereby locating support 104 is at the axial location of branch vessel 102 on moving direction, make peristome 1042 to align with the opening transitional region of branch vessel 102, and, by tension positioning guide wire 106, have the positioning guide wire 106 of tension force can also be in circumferential direction locating support 104, no matter thereby support 104 main parts 1041 or the position of peristome 1042 all can accurately be located, , can ensure that support 104 fits to exactly the peristome office of branch vessel after expansion.
Introduce the release step of support 104 below, first, by operating each self-control device, keep plunger tip 108 motionless, and pull back the second lead sheath 110 along guiding wire 105, thereby by the supporting of fixing plunger tip 108, the peristome 1042 of support 104 is discharged, at this moment, thus peristome 1042 also can launch accurately to fit to the opening transitional region of branch vessel 102.Then, fix the second lead sheath 110 and plunger tip 108 motionless, operation is led core 107 and is moved forward along guiding wire 105, thereby drive the first lead sheath 109 synchronously to move forward, due to the existence of positioning guide wire 106, now the first lead sheath 109 will depart from the body 1041 of support 104 so that main part 1041 launches and fits in the blood vessel wall of branch vessel 102., adopt the first releasing bracket rear end mode of releasing bracket front end again.Can ensure better like this location accuracy of the peristome 1042 of support 104.In other modes of operation, also first releasing bracket front end releasing bracket rear end or two ends discharges simultaneously again, all drops in protection domain of the present utility model for this mode of operation.Like this, the feature discharging by the distinctive two ends of this utility model, can control well the expansion process from swollen support, and be adapted to especially have the support of main part 1041 and branching portion 1042, make support 104 can accurately fit in the opening portion of branch vessel, ensure that the shape of itself and support and blood vessel is good fit.
It should be noted that, in said process, if be formed with the through hole for positioning guide wire 106 on the first lead sheath 109 and/or the second lead sheath 110, first discharge and extract positioning guide wire 106 out at needs.Otherwise after two lead sheath releasing brackets 104, extract again positioning guide wire 106 out, can position the support 104 in dispose procedure by positioning guide wire 106 so always.All drop in protection domain of the present utility model for the mode of texturing in this step.
Finally, fit in completely after blood vessel wall until support 104, carry out the step that exits of implant system.Wherein, because support 104 has fitted in blood vessel wall, only need operation to lead core 107 and plunger tip 108 is extracted out backward along guiding wire 105, synchronously to drive the first lead sheath 109 to exit backward branch vessel 102 and main blood vessel 101, thereby the support that completes branch vessel is accurately implanted.
To sum up, the implant system of the blood vessel that this utility model provides and method can realize there is horn opening or the support 104 of the shape opening of cutting sth. askew in the accurate implantation of the bifurcated opening part of branch vessel, there is higher practicality and promotional value.In addition, the implant system of the branch vessel that this utility model provides, except the support for having horn opening, can also be used for the support of other shapes, for example the implantation of ordinary straight cartridge type support.In addition; the stent conveying device that this utility model provides removes for the implantation field in branch vessel; the support that can also be used for other position blood vessels is implanted; in the situation that not departing from this utility model design, all drop in protection domain of the present utility model for the distortion in this application and field.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; this utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each concrete technical characterictic described in above-mentioned detailed description of the invention, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, this utility model is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between various embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. the accurate implant system of the support of a branch vessel, described branch vessel comprises the main blood vessel (101) being interconnected and the branch vessel (102) being communicated with this main blood vessel (101), it is characterized in that, the accurate implant system of described support comprises releasedly storage support (104) and carries the stent conveying device (103) of this support (104), extend to the guiding wire (105) of described branch vessel (102) from described main blood vessel (101), and the positioning guide wire (106) extending along described main blood vessel (101), described stent conveying device (103) is set in outside described guiding wire (105) movably, on described support (104), be provided with spacing hole (1061), described positioning guide wire (106) is slidably through this spacing hole (1061).
2. the accurate implant system of support according to claim 1, is characterized in that, described spacing hole (1061) is formed by the spacing ring being connected on described support (104).
3. the accurate implant system of support according to claim 1, it is characterized in that, described stent conveying device (103) comprise can move along seal wire lead core (107), described in being set in slidably, lead the outer plunger tip (108) of core (107), receive first lead sheath (109) of described support (104) front end and second lead sheath (110) of storage described support (104) rear end, described in described the first lead sheath (109) is connected to, lead on core (107) and rear end opening, described the second lead sheath (110) front end is open, described plunger tip (108) is set in slidably in described the second lead sheath (110) and supports the rear end of described support (104).
4. the accurate implant system of support according to claim 3, is characterized in that, described in the front end of described the first lead sheath (109) seals and is connected in, leads core (107).
5. the accurate implant system of support according to claim 4, is characterized in that, the front end of described the first lead sheath (109) is formed as having the target seeker (1091) of streamlined structure.
6. the accurate implant system of support according to claim 3, it is characterized in that, the accurate implant system of described support also comprises multiple control device, described the second lead sheath (110), described plunger tip (108) and described in lead core (10) and extend back and be connected to described control device separately.
7. the accurate implant system of support according to claim 3, is characterized in that, the front end size of described the second lead sheath (110) is less than the rear end size of described the first lead sheath (109) and seamlessly transits.
8. the accurate implant system of support according to claim 1, it is characterized in that, described support (104) has main part (1041) and is positioned at the peristome (1042) of this main part (1041) rear end, described main part (1041) is formed as straight tube structure, and described peristome (1042) is formed as horn-type structure.
9. the accurate implant system of support according to claim 1, it is characterized in that, described support (104) has main part (1041) and is positioned at the peristome (1042) of this main part (1041) rear end, described main part (1041) is formed as straight tube structure, and the plane of the opening of described peristome (1042) is obliquely installed with respect to the axis of described main part (1041).
10. the accurate implant system of support according to claim 8 or claim 9, is characterized in that, described spacing hole (1061) is formed on rear end or the described peristome (1042) of described main part (1041).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420348083.9U CN203935305U (en) | 2014-06-25 | 2014-06-25 | The accurate implant system of support of branch vessel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420348083.9U CN203935305U (en) | 2014-06-25 | 2014-06-25 | The accurate implant system of support of branch vessel |
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| CN203935305U true CN203935305U (en) | 2014-11-12 |
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| CN201420348083.9U Withdrawn - After Issue CN203935305U (en) | 2014-06-25 | 2014-06-25 | The accurate implant system of support of branch vessel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105266936B (en) * | 2014-06-25 | 2018-04-10 | 李雷 | The accurate implant system of support of branch vessel |
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2014
- 2014-06-25 CN CN201420348083.9U patent/CN203935305U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105266936B (en) * | 2014-06-25 | 2018-04-10 | 李雷 | The accurate implant system of support of branch vessel |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141112 Effective date of abandoning: 20180410 |
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| AV01 | Patent right actively abandoned |