implant system

A wire hole and distal technology, which is applied in the field of implantation systems, can solve the problems of difficulty in extending the guide wire, difficult implantation of the extension stent, and difficulty in aligning the short branch with the guide wire.

Active Publication Date: 2022-01-04
LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the cavity of the abdominal aortic aneurysm where the abdominal aortic aneurysm is located is large, the relative angle between the short branch and the left common iliac artery is large, or the relative angle between the long branch and the short branch is large (for example, the apex of the aneurysm is between the two branches) In the middle), the guide wire protruding from the left common iliac artery is difficult to align with the end of the short branch, which in turn makes it difficult to extend the guide wire into the short branch, and finally makes it difficult to implant the extended stent

Method used

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no. 1 example

[0054] see also Figure 9 to Figure 12 , the delivery tube 100 can be a cylindrical rod with a certain length, the delivery tube 100 has a proximal surface 124, a distal surface 125 and a side peripheral surface 126, the proximal surface 124 and the distal surface 125 are oppositely arranged, and the side peripheral surface 126 is connected between the proximal face 124 and the distal face 125 . A first wire passing hole 110 and a second wire passing hole 120 are opened in the delivery pipe 100 , and the first wire passing hole 110 and the second wire passing hole 120 are isolated from each other and cannot form a communication relationship. Wherein, the first wire passing hole 110 is used for passing the catcher 400 , and the second wire passing hole 120 is used for passing the guide wire 500 . The cross-section of the first wire passing hole 110 may be circular, and simultaneously pass through the proximal surface 124 and the distal surface 125 . The cross-section of the s...

no. 1 example

[0060] By making the implant system include the delivery tube 100 of the first embodiment, the implant system can provide the implant method of the first embodiment for the extension stent 350, the implant method of the first embodiment mainly includes the following steps:

[0061] first step, see also Figure 18 with Figure 19 , insert the sheath tube 700 into the blood vessel, and pass the delivery tube 100 into the sheath tube 700 . Put the sheath tube 700 into the left common iliac artery 20, and after the sheath tube 700 is adjusted to a proper position, the delivery tube 100 is passed through the sheath tube 700 and enters the tumor cavity 10 where the tumor body 40 is located, so that the delivery tube 100 The end where the end surface 125 is located is located obliquely below the end surface 3113 of the short branch 310 , and the delivery tube 100 is adjusted so that the distal end surface 125 of the delivery tube 100 is aligned (ie coplanar) or parallel to the end s...

no. 2 example

[0068] See also 9, Figure 13 to Figure 17 , the delivery tube 200 provided by this embodiment is substantially the same as the delivery tube 100 provided by the first embodiment, the main difference is that: the delivery tube 200 of this embodiment is provided with a slit 230, and the slit 230 makes the first pass The wire hole 210 and the second wire passing hole 220 communicate everywhere in the radial direction, so that the capture ring 410 can be sleeved on the guide wire 500 and slide through the wire slot 230 to exit the entire delivery tube 200 . This embodiment can be obtained by opening the thread slit 230 on the basis of the delivery pipe 100 of the first embodiment, and making the thread slit 230 pass through the partition wall 127 to communicate with the first thread hole 110 and the second thread hole 120 The delivery pipe 200.

[0069] The delivery tube 200 has a proximal surface 224, a distal surface 225 and a side peripheral surface 226, the proximal surface ...

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Abstract

The invention discloses an implant system, which includes a delivery tube, a grabber and a guide wire. The delivery tube has a proximal end surface and a distal end surface oppositely arranged, and a side peripheral surface connecting the proximal end surface and the distal end surface. There are a first wire passing hole and a second wire passing hole, the catcher is passed through the first wire passing hole, and the guide wire is passed through the second wire passing hole; the first wire passing hole runs through the proximal surface and the far end surface; the second wire hole includes a first section and a second section, the first section communicates with the second section, and the proximal opening of the first section is set on the proximal surface, and the distal opening of the second section is set on the side On the peripheral surface, the second section is far away from the first wire passing hole and extends toward the distal end; the central axis of the second section forms a certain angle with the central axis of the first section. Since the catcher threaded in the first wire passing hole can adjust the angle of the short branch, the guide wire protruding from the second wire passing hole can smoothly enter the lumen of the bending part along the axial direction of the bending part for subsequent implantation of extended stents.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an implant system. Background technique [0002] For the treatment of abdominal aortic aneurysms, abdominal aortic stent grafts are usually used to isolate the tumor in the abdominal aorta. If the tumor accumulates in the left common iliac artery, an extended stent must be implanted to separate it from the abdominal aorta. The stent-graft was connected such that the extended stent isolated the tumor in the left common iliac artery. Generally, an abdominal aortic stent graft includes tubular long branches and short branches. During the implantation of the extended stent, a guide wire is usually used to first pass through the left common iliac artery and then enter into the lumen of the short branch, and then the extended stent is implanted along the guide wire and connected to the short branch. However, if the cavity of the abdominal aortic aneurysm where the abdomin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/954A61B17/12
CPCA61F2/954A61B17/12031A61B17/12118A61B17/1214A61F2002/9511A61F2002/823A61B2017/1205
Inventor 肖本好刘强
Owner LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
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