CN205339229U

CN205339229U - Support transportation device

Info

Publication number: CN205339229U
Application number: CN201521011386.2U
Authority: CN
Inventors: 刘光; 罗鹏; 杨永森; 陈娟; 范骥
Original assignee: Shanghai Shape Memory Alloy Material Co Ltd
Current assignee: Shanghai Shape Memory Alloy Material Co Ltd
Priority date: 2015-12-08
Filing date: 2015-12-08
Publication date: 2016-06-29
Anticipated expiration: 2025-12-08

Abstract

The utility model discloses a support transportation device, a serial communication port, including the metal pole, be equipped with the near -end mark between the anterior segment of metal pole and the back end, be equipped with the horizontal pole of two symmetries on the near -end mark, be equipped with the needle that can imbed the support mesh on every horizontal pole. The utility model discloses can accurately deliver to aneurysm department with the support, just all be suitable for with the cutting support to braided stent, propelling movement and recovery through a plurality of needle realize the support have improved the security that the support used. The utility model is simple in operation, the operator has greatly been made things convenient for for intervene the progress of treatment aneurysm, improved work efficiency, shortened patient's the painful time.

Description

A kind of stent conveying device

Technical field

This utility model relates to a kind of stent conveying device, particularly relates to a kind of aneurysmal stent delivery system of interventional therapy, belongs to technical field of medical instruments.

Background technology

Aneurysm is a kind of very common angiopathy, it is the pathological changes due to arterial wall or damage, form arterial wall limitation or the performance of diffusivity expansion or bulging, with dilatancy, pulsation lump for main manifestations, the any position in Arterial system can be there is, the most common are abdominal aortic aneurysm and intracranial aneurysm.Uncracked aneurysm generally will not cause any symptom, once aneurysm is broken will cause serious consequence.

For the aneurysm of little cryptomere, being generally adopted Coil embolization, the blood that turn can flow through significantly slows down, and brings out thrombosis row, finally makes this aneurysm occlusion, it is to avoid aneurysm rupture.

And for the aneurysm such as wide neck aneurysm, netraneurysm of those complexity, large-scale or giant aneurysm etc. in actual therapeutic process, it is necessary to many turns could thromboembolisms complete, and need extra support to provide for it to support.

Blood flow guider is the self-expanding stent of low porosity, it is possible to reduce the arterial-venous transit between aneurysm body and parent artery, brings out thrombosis in aneurysm, promotes aneurysm neck place neointimal hyperplasia, thus reaching parent artery restructuration.And whole operation process only need to place a support and can complete aneurysmal interventional therapy, easily and fast, thrombosis rate is high at once.Traditional support conveying location difficulty, is not easily recycled.

Summary of the invention

The technical problems to be solved in the utility model is: provide a kind of simple to operate, safety is high, work efficiency is high stent conveying device, solves traditional support conveying location difficulty, the problem being not easily recycled.

In order to solve above-mentioned technical problem, the technical solution of the utility model there is provided a kind of stent conveying device, it is characterized in that, including metallic rod, it is provided with proximal marker between leading portion and the back segment of metallic rod, proximal marker is provided with two symmetrical cross bars, and each cross bar is provided with the spicule that can embed stent mesh.

Preferably, the diameter of described metallic rod leading portion is between 0.15-0.3mm, and metallic rod back segment diameter is between 0.4-0.6mm.

Preferably, described metallic rod is rustless steel or Nitinol bar.

Preferably, the end of the leading portion of described metallic rod is provided with distal marker.

Preferably, described proximal marker and distal marker are and play the labelling that the developing material of positioning action makes.

Preferably, the profile of described cross bar is cylindrical or arc.

Preferably, described cross bar is have the cross bar that hyperelastic material is made, and spicule is have the spicule that elastic material is made.

Preferably, described cross bar is metal or polymer cross bar.

Preferably, the inner surface of each described cross bar is equipped with 1-4 spicule.

Preferably, having the angle of 10-30 ° between described cross bar and spicule, after putting into support, spicule is perpendicular to cross bar.

This utility model location is convenient, support can be delivered to aneurysm place exactly, and be all suitable for for braided support and cutting support, be realized propelling movement and the recovery of support by some spicules, improves the safety that support uses.This utility model is simple to operate, is very easy to operator, accelerates the aneurysmal progress of interventional therapy, improves work efficiency, shortens the painful time of patient.

Accompanying drawing explanation

Fig. 1 is the schematic diagram treating aneurysmal support；

Fig. 2 is the overall structure schematic diagram of a kind of stent conveying device；

Fig. 3 is the structural representation after cross bar and the spicule deformation of a kind of stent conveying device；

Fig. 4 is support and a kind of stent conveying device draws in schematic diagram after microtubular；

Fig. 5 is the schematic diagram before support release；

Fig. 6 is schematic diagram during support release；

Fig. 7 is the schematic diagram after support release.

Detailed description of the invention

For making this utility model become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.

This utility model is a kind of stent conveying device, the support 1 of braiding can be delivered to aneurysm place, and support 1 has the blood flowing that higher metal coverage rate can slow down in aneurysm, promotes thrombosis in tumor, is finally completed aneurysmal treatment.Such as Fig. 2, this conveyer device is the push rod of a kind of clip, and it mainly includes metallic rod 2, proximal marker 3, distal marker 4, cross bar 5, spicule 6.Proximal marker 3 is had between leading portion and the back segment of metallic rod 2, proximal marker 3 has two symmetrical cross bars 5, each cross bar 5 has 1-4 spicule 6, is fixed on the inner surface of cross bar 5, spicule 6 can embed in the mesh of support 1, provides thrust or pull-back forces when being used for carrying to support 1.Having the angle of 10-30 ° between spicule 6 and cross bar 5, after putting into support 1, spicule 6 is perpendicular to cross bar 5, and embeds in the mesh of support 1.The end of the leading portion of metallic rod 2 is provided with distal marker 4.

Metallic rod 2 leading portion is through processing, and its diameter is between 0.15-0.3mm, and metallic rod back segment diameter is between 0.4-0.6mm, and its material is rustless steel or Nitinol.Proximal marker 3, distal marker 4 are developing material, X-ray opaque, and in operation process, the position of observable support 1, plays the role of positioning, to discharge more accurately.Cross bar 5 and spicule 6 are the key components of this device, and spicule 6 can embed the mesh of support 1, it is achieved the propelling movement of support 1 and recovery, and both are respectively provided with super-elasticity by (i.e. cross bar 5 and spicule 6) material therefor.Cross bar 5 is metal or polymer cross bar.The profile of cross bar 5 is cylindrical or arc.Cross bar 5 is horizontal splayed (as shown in Figure 2) time initial, once income microtubular 7, becomes that " two " font (as shown in Figure 3), is parallel to metallic rod 2.Support 1 can be braiding shape support or cutting shape support.

Before using, first support 1 is pressed and is held in metallic rod 2, then two cross bars 5 of pressure, and each cross bar 5 has 1-4 spicule 6, embeds in support 1 hole, it is achieved propelling movement and the recovery to support 1.

During use, the microtubular 7 that first inside be plugged with stent conveying device and support 1 is transported near aneurysm, then promotes metallic rod 2, support 1 is delivered to the mouth of pipe of microtubular 7, as shown in Figure 5.Then proceed to promote metallic rod 2, the leading portion of support 1 can be discharged, it is noted that the remote location of support 1 during placement, avoid its too close aneurysm mouth as far as possible, if support 1 is placed bad, now can pull metallic rod 2, again reclaim support 1, again discharge, as shown in Figure 6.When determining that support 1 is placed after accurately, microtubular 7 of can dropping back, push metallic rod 2, make cross bar 5 and spicule 6 return to the form of Fig. 2, now conveyer device is drawn in microtubular 7 again, withdraws from external together, namely complete the placement of support 1, as shown in Figure 7.

Claims

1. a stent conveying device, it is characterized in that, including metallic rod (2), proximal marker (3) it is provided with between leading portion and the back segment of metallic rod (2), proximal marker (3) is provided with two symmetrical cross bars (5), and each cross bar (5) is provided with the spicule (6) that can embed support (1) mesh.

2. a kind of stent conveying device as claimed in claim 1, it is characterised in that the diameter of described metallic rod (2) leading portion is between 0.15-0.3mm, and metallic rod (2) back segment diameter is between 0.4-0.6mm.

3. a kind of stent conveying device as claimed in claim 1 or 2, it is characterised in that described metallic rod (2) is rustless steel or Nitinol bar.

4. a kind of stent conveying device as claimed in claim 1, it is characterised in that the end of the leading portion of described metallic rod (2) is provided with distal marker (4).

5. a kind of stent conveying device as claimed in claim 4, it is characterised in that described proximal marker (3) and distal marker (4) are and play the labelling that the developing material of positioning action makes.

6. a kind of stent conveying device as claimed in claim 1, it is characterised in that the profile of described cross bar (5) is cylindrical or arc.

7. a kind of stent conveying device as claimed in claim 1, it is characterised in that, for have the cross bar that hyperelastic material is made, spicule (6) is for have the spicule that elastic material is made for described cross bar (5).

8. a kind of stent conveying device as claimed in claim 7, it is characterised in that described cross bar (5) is metal or polymer cross bar.

9. a kind of stent conveying device as claimed in claim 1, it is characterised in that the inner surface of each described cross bar (5) is equipped with 1-4 spicule.

10. a kind of stent conveying device as claimed in claim 1, it is characterized in that, having the angle of 10-30 ° between described cross bar (5) and spicule (6), after putting into support (1), spicule (6) is perpendicular to cross bar (5).