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Device and method for reducing or removing stenoses

A narrow, working technique, applied in the narrow device field, that can solve problems such as device occupancy, poor healing, increased risk of inflammation, etc., to the effect of ensuring operability

Inactive Publication Date: 2009-08-12
VARIOMED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The problem with this large puncture site is that it often heals poorly and thus also increases the risk of inflammation
Furthermore, there is a problem when using a single working channel, which is often almost completely occupied by devices introduced through the working channel, so that the working channel does not ensure sufficient return blood flow in all cases

Method used

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  • Device and method for reducing or removing stenoses
  • Device and method for reducing or removing stenoses
  • Device and method for reducing or removing stenoses

Examples

Experimental program
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Effect test

Embodiment Construction

[0035] figure 1 The common carotid artery 1 is shown in a highly simplified view, which bifurcates at one end into an internal carotid artery 2 and an external carotid artery 3 and connects at the other end with two branches 4, 5 of the femoral artery.

[0036] In the femoral artery branch 4 , an access 6 is made for a working catheter 7 , from which access 6 extends to the internal carotid artery 2 , through the illustrated puncture channel. The working catheter 7 comprises a lumen 8 constituting a first working channel 9 of the working catheter 7 . In the first working channel 9 a guide wire 10 is arranged, through which the working catheter 7 is led to its figure 1 The location shown in .

[0037] In the internal carotid artery 2 there is a stenosis 12 further away from the distal end 11 of the working channel 7 . Furthermore, arrows 13 , 14 indicate the generally antegrade blood flow in internal carotid artery 2 and external carotid artery 3 .

[0038] refer to figure...

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Abstract

A device for reducing or removing stenosis present in a blood vessel by means of a working catheter (7) is described. The working catheter comprises a lumen (8) forming a first working channel (9), extending from the distal end (11) to the proximal end of the working catheter for inserting an instrument (38) to reduce or remove the stenosis. Furthermore, a balloon catheter (16) is provided, which is configured separately from the working catheter, the balloon catheter comprising a sealing balloon (22) in the region of the distal end (21) thereof. The balloon catheter comprises two lumen (18, 20) that are configured separately from each other, of which one is connected to the sealing balloon for the dilation of the same, while the other one forms a second working channel (19) extending from the distal end to the proximal end of the balloon catheter. The sealing balloon is configured for the lateral encompassing of the distal end region of the working catheter such that if a working catheter and a balloon catheter are inserted into the blood vessel next to each other a seal is formed between the outsides of the working catheter and of the balloon catheter and the inside wall of the blood vessel by means of the dilated sealing balloon.

Description

technical field [0001] The present invention relates to a device for reducing or eliminating stenosis present in a blood vessel, the device having a working catheter with a lumen constituting a first working channel extending from a distal end to a proximal end of the working catheter for introducing equipment to reduce or eliminate the stenosis. Furthermore, the present invention relates to a method of reducing or eliminating a stenosis present in a blood vessel, wherein a working catheter is introduced into the blood vessel through an inlet until the distal end of the working catheter is adjacent to the region of the stenosis, wherein the working catheter has a lumen that constitutes a The first working channel extends from the distal end of the working catheter to the proximal end. Background technique [0002] Devices and methods of this type are used, for example, to eliminate stenosis in carotid arteries, particularly internal carotid arteries. In this case, the sten...

Claims

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Application Information

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IPC IPC(8): A61M25/10A61M29/02A61F2/958
CPCA61M2025/1052A61M2025/0036A61M25/104A61M25/1018A61M25/10188A61M25/10184A61M25/10182
Inventor 马克思·施滕格尔
Owner VARIOMED
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