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Double-lumen radiography catheter

A technique of catheterization and radiography, which is applied in the direction of catheters, guide wires, hollow probes, etc., can solve the problems of difficulty in accurately judging the true and false lumen of the dissection, the difficulty of dissection true and false lumen, and the long time, so as to achieve convenient operation and reduce risks , the effect of saving time

Active Publication Date: 2018-03-16
LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When encountering complicated aortic dissection, it is difficult and time-consuming to judge the true and false lumens of the dissection using ordinary angiography catheters, and it is difficult to accurately judge the true and false lumens of the dissection, which poses a challenge to the operator

Method used

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  • Double-lumen radiography catheter
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  • Double-lumen radiography catheter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 1 As shown, a dual-lumen contrast catheter includes a catheter 1 and a Y-shaped joint 2 disposed at the distal end of the catheter 1. The straight branch 2-1 of the Y-shaped joint 2 is provided with a first contrast agent inlet 3-1' and a second contrast agent inlet 3-1'. A first hemostatic valve 3' with a guide wire inlet 3-2', a second hemostatic valve with a second contrast agent inlet 3-1 and a second guide wire inlet 3-2 is provided on the side branch 2-2 of the Y-shaped joint 2 valve 3. The outer diameter of the catheter is 6F.

[0041] The inner cavity of the catheter 1 is divided into a first cavity and a second cavity, the straight branch 2-1 of the Y-shaped joint 2 communicates with the first cavity, and the side branch 2-2 of the Y-shaped joint 2 communicates with the second cavity ; The first cavity and the second cavity have the same diameter (cross-section see image 3 ), all of which can pass through a guide wire with a diameter of 0.014...

Embodiment 2

[0050] Compared with the dual-lumen contrast catheter provided in Example 1, the dual-lumen contrast catheter provided in this embodiment has a similar structure. Different shapes (cross section see Figure 4 ), choose to use guide wires of different specifications according to the size of the two lumens.

Embodiment 3

[0052] Compared with the dual-lumen contrast catheter provided in Example 1, the dual-lumen contrast catheter provided in this embodiment has a similar structure, except that the catheter is composed of two catheters with the same size and shape wrapped by peripheral catheters (cross-section See Figure 5 ), use the same guide wire specifications.

[0053] The conduit 1 is provided with a straight hole 1-1 and a side hole 1-2, the straight hole 1-1 is the outlet of the first cavity, and the side hole 1-2 is the outlet of the second cavity. The distance between the straight hole 1-1 and the side hole 1-2 is 5-15mm.

[0054] The proximal end of the catheter is respectively provided with a straight hole development point and a side hole development point, the straight hole development point is set near the straight hole 1-1 of the catheter; the side hole development point is set at the proximal hole 1-2 of the catheter. The length of the peripheral conduit is flush with the sid...

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PUM

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Abstract

The invention relates to a double-lumen radiography catheter, which comprises a catheter body and a Y-shaped connector which is arranged at the distal end of the catheter body, wherein the catheter body comprises a first lumen and a second lumen; a straight branch of the Y-shaped connector communicates with the first lumen, and a side branch of the Y-shaped connector communicates with the second lumen; a hemostasis valve is arranged on at least one of the straight branch and the side branch of the Y-shaped connector; and the hemostasis valve is provided with a contrast medium inlet and a guidewire inlet. The radiography catheter provided by the invention is simple in structure and simple to operate; and a true lumen of artery dissection can be found out rapidly, so that operating time issaved and operative risks are reduced.

Description

technical field [0001] The invention belongs to the field of interventional medical devices, in particular to a dual-chamber imaging catheter. Background technique [0002] Human arterial vessels are composed of three layers: intima, media and adventitia, and the three layers are tightly fitted together to carry the passage of blood flow. Arterial dissection refers to the formation of arterial dissection due to partial tearing of the intima and the strong blood impact, the intima gradually peels off and expands, forming two true and false lumens in the artery. Arterial dissection can affect any part of the body, depending on the site of the breach and the location of the artery in which the breach is located. [0003] At present, the endovascular repair technology of aortic dissection widely carried out clinically generally uses a small incision in the iliofemoral artery, and uses interventional therapy technology to deliver artificial vascular grafts such as stents to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/00A61M25/09
CPCA61M25/0023A61M25/0026A61M25/09A61M2025/0037
Inventor 蔡明阳朱永宏王刚
Owner LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
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