CN206576992U - A kind of conveying pusher of intravascular stent - Google Patents
A kind of conveying pusher of intravascular stent Download PDFInfo
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- CN206576992U CN206576992U CN201621163623.1U CN201621163623U CN206576992U CN 206576992 U CN206576992 U CN 206576992U CN 201621163623 U CN201621163623 U CN 201621163623U CN 206576992 U CN206576992 U CN 206576992U
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- inner core
- intravascular stent
- proximal part
- distal portions
- conveying pusher
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Abstract
The utility model provides a kind of conveying pusher of intravascular stent, including handle and push rod, and push rod includes inner core, and inner core is made up of the inner core distal portions and inner core proximal part interconnected, and inner core proximal part periphery is wound with spring；Handle is provided with the fixed pin for being used for fixing intravascular stent with spring outwards, inner core distal portions are located in.Inner core distal portions and inner core proximal part are welded and fixed by connecting steel bushing.Inner core distal portions are the rod-like structure of with groove, and inner core proximal part is formed by inner core filament winding system.In use, the pre- distal end mounted in conveying pusher of blood vessels open ring support curling, is fixed by fixed pin.The device that the utility model is provided overcomes the deficiencies in the prior art, integrally bending is good, smoothness of the intravascular stent in the stability during push and release can be ensured, off-position is can be recycled or adjusts at any time before support does not discharge completely, doctor is facilitated to operate, while security is good.
Description
Technical field
The utility model is related to a kind of conveying pusher of intravascular stent, belongs to technical field of medical instruments.
Background technology
At present, it is general to reach branch using in lesion stenter to implant mode for illnesss such as hemadostewnosis, vascular diseases
Stenosis occlusion blood vessel is supportted, the purpose for keeping intravascular blood flow unobstructed.Common support has metal laser cutting profile, silk material braiding
Shape.In operative process, general support is to be mounted in advance on foley's tube in advance, and expansion release is carried out in lesion.
Fig. 1 and Fig. 2 are respectively a kind of front view and left view of blood vessels open ring support, and described blood vessels open ring support is volume
Bent open loop column construction, Fig. 2 shows 3 kinds of different hatch frames：Fig. 2 (a) medium vessels open loops bracket cross section is small half
It is circular；Fig. 2 (b) medium vessels open loops bracket cross section is more than half circular；Fig. 2 (c) medium vessels open loop bracket cross sections are the spiral shell rolled
Shape is revolved, its initiating terminal and end are staggered.According to the actual requirements, blood vessels open ring support section can also shape other structures.
Blood vessels open ring support is made of elastomeric metal material, so that support has from swollen property, in implantable intravascular
The change of blood vessel diameter can be followed afterwards and adaptive diastole is realized, it is ensured that enough support forces are kept to narrow blood vessel.
For above-mentioned blood vessels open ring support, due to its for operation medium-height trestle be put into and the reangiostenosis in later stage is asked
Topic suffers from excellent adaptivity, can not be by foley's tube, and is recovered using the memory characteristic of itself to original state, therefore
It is necessary a kind of new conveying pusher of design, to facilitate the operation of doctor.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of for blood vessels open ring support to be pushed into blood vessel, and side
Just the conveying pusher that doctor operates.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is to provide a kind of conveying push of intravascular stent
Device, it is characterised in that：Including handle and push rod, push rod includes inner core, inner core by the inner core distal portions that interconnect and
Inner core proximal part is constituted, and inner core proximal part periphery is wound with spring；Handle is same to be located in spring outwards, inner core distal portions
Provided with the fixed pin for fixing intravascular stent.
Preferably, the handle is a hollow cylindrical structure.
Preferably, the fixed pin is pyramidal structure.
Preferably, the inner core distal portions and inner core proximal part are welded and fixed by connecting steel bushing.
Preferably, spring and the inner core proximal part is fixed together by welding manner.
Preferably, the inner core distal portions are the rod-like structure of with groove.
Preferably, the rod-like structure back is provided with trench structure.
Preferably, the inner core proximal part is formed by inner core filament winding system.
Preferably, the interior core filaments are 3-7 roots.
Preferably, the inner core diameter is 0.6-3.5mm, and the spring diameter is 0.1-0.8mm.
In use, the pre- distal end mounted in conveying pusher of blood vessels open ring support curling, is fixed by fixed pin.Push rod
Near-end is formed by inner core filament winding system, improves the integrally bending of pusher, reduces the damage to human vas.
The device that the utility model is provided overcomes the deficiencies in the prior art, and integrally bending is good, it is ensured that blood vessel branch
Smoothness of the frame in the stability during push and release, can be returned at any time before support does not discharge completely
Receive or adjustment off-position, facilitate doctor to operate, while security is good.
Brief description of the drawings
Fig. 1 is the front view for the blood vessels open ring support that embodiment 1 is provided；
Fig. 2 is the left view for the blood vessels open ring support that embodiment 1 is provided；
The conveying pusher structural representation for the intravascular stent that Fig. 3 provides for the present embodiment；
Fig. 4 is inner core distal portions and inner core proximal part junction structural representation；
Fig. 5 is spring and inner core proximal part junction structural representation；
Fig. 6 is inner core distal portions structural representation；
Fig. 7 is inner core proximal part structural representation.
Embodiment
With reference to specific embodiment, the utility model is expanded on further.It should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation scope of the present utility model.In addition, it is to be understood that reading the content of the utility model instruction
Afterwards, those skilled in the art can make various changes or modifications to the utility model, and these equivalent form of values equally fall within this Shen
Please appended claims limited range.
The conveying pusher structural representation for the intravascular stent that Fig. 3 provides for the present embodiment, described intravascular stent it is defeated
Pusher is sent to include handle 1 and the two parts of push rod 2, handle 1 is a hollow cylindrical structure, is coaxially fixed on and pushed away by a screw
The outside of bar 2 is sent, in operative process, doctor can be according to using needing to carry out installation fixation.The material of handle 1 is working of plastics,
Screw is the materials such as stainless steel.
Push rod 2 includes inner core, and inner core is made up of the inner core distal portions 2-3 and inner core proximal part 2-2 interconnected,
Inner core distal portions 2-3 and inner core proximal part 2-2 are welded and fixed by connecting steel bushing 2-4, are pushed away as shown in figure 4, both ensure that
The compliance of bar is sent, support strength of the distal end to blood vessels open ring support is in turn ensure that.Inner core proximal part 2-2 peripheries are wound with bullet
Spring 2-1.Spring 2-1 and inner core proximal part 2-2 are fixed together by welding manner, as shown in Figure 5.
Inner core distal portions 2-3 can be the rod-like structure of with groove, shown in such as Fig. 6 (a)；For the branch that length is long
Frame, in order to ensure the bendability of distal end, can process trench structure at shaft-like back when needed, strengthen its compliance, reduction pair
Shown in the damage of blood vessel, such as Fig. 6 (b).
Inner core proximal part 2-2 is formed by 3-7 root inner core filament winding systems, is formed in the present embodiment from 7 inner core filament winding systems,
As shown in fig. 7, improving the integrally bending of pusher, the damage to human vas is reduced.
Inner core diameter is in 0.6-3.5mm diameter ranges, and spring diameter is in 0.1-0.8mm diameter ranges.
The process of the conveying pusher for the intravascular stent that the present embodiment is provided is as follows：
1st, by metallic rod/silk grinding of cylinder into inner core distal portions；
2nd, nearly inner core proximal part is made using inner core filament winding；
3rd, by welding manner, inner core distal end and near-end is fixedly connected with using connection steel bushing, inner core is shaped；
4th, by peripheral spring Coil-up on inner core proximal part, and it is connected using welding manner.
Inner core distal portions carry the fixed pin of a taper, and blood vessels open ring support can crimp pre- be mounted in and convey pusher
Distally, it is fixed by fixed pin.The pyramidal structure of fixed pin, it is ensured that stability of the intravascular stent during push with
And smoothness when release, it can be recycled or adjust at any time off-position before support does not discharge completely.
Claims (10)
1. a kind of conveying pusher of intravascular stent, it is characterised in that：Including handle (1) and push rod (2), push rod (2) bag
Inner core is included, inner core is made up of the inner core distal portions (2-3) and inner core proximal part (2-2) interconnected, inner core proximal part
(2-2) periphery is wound with spring (2-1)；Handle (1) is with being located on the outside of spring (2-1), and inner core distal portions (2-3) are provided with use
In the fixed pin of fixed intravascular stent.
2. a kind of conveying pusher of intravascular stent as claimed in claim 1, it is characterised in that：The handle (1) is
Heart cylindrical structural.
3. a kind of conveying pusher of intravascular stent as claimed in claim 1, it is characterised in that：The fixed pin is taper knot
Structure.
4. a kind of conveying pusher of intravascular stent as claimed in claim 1, it is characterised in that：The inner core distal portions
(2-3) and inner core proximal part (2-2) are welded and fixed by connecting steel bushing (2-4).
5. a kind of conveying pusher of intravascular stent as claimed in claim 1, it is characterised in that：The spring (2-1) and interior
Core proximal part (2-2) is fixed together by welding manner.
6. a kind of conveying pusher of intravascular stent as claimed in claim 1, it is characterised in that：The inner core distal portions
(2-3) is the rod-like structure of with groove.
7. a kind of conveying pusher of intravascular stent as claimed in claim 6, it is characterised in that：The rod-like structure back is set
There is trench structure.
8. a kind of conveying pusher of intravascular stent as claimed in claim 1, it is characterised in that：The inner core proximal part
(2-2) is formed by inner core filament winding system.
9. a kind of conveying pusher of intravascular stent as claimed in claim 8, it is characterised in that：The interior core filaments are 3-7 roots.
10. a kind of conveying pusher of intravascular stent as claimed in claim 1, it is characterised in that：The inner core diameter is
0.6-3.5mm, a diameter of 0.1-0.8mm of the spring (2-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621163623.1U CN206576992U (en) | 2016-11-01 | 2016-11-01 | A kind of conveying pusher of intravascular stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621163623.1U CN206576992U (en) | 2016-11-01 | 2016-11-01 | A kind of conveying pusher of intravascular stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206576992U true CN206576992U (en) | 2017-10-24 |
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ID=60108735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621163623.1U Active CN206576992U (en) | 2016-11-01 | 2016-11-01 | A kind of conveying pusher of intravascular stent |
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| Country | Link |
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| CN (1) | CN206576992U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112998919A (en) * | 2019-12-19 | 2021-06-22 | 先健科技(深圳)有限公司 | Conveyor |
-
2016
- 2016-11-01 CN CN201621163623.1U patent/CN206576992U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112998919A (en) * | 2019-12-19 | 2021-06-22 | 先健科技(深圳)有限公司 | Conveyor |
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