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Catheter device

A technology for catheter devices and drive shafts, which is applied in circulatory assistance devices, medical science, prostheses, etc., can solve problems such as large rotor diameters, and achieve the effect of improving reliability and operating life

Active Publication Date: 2012-10-03
AIS AACHEN INNOVATIVE SOLUTIONS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the system is that, due to the large diameter of the trochanter, implantation via the femoral artery can only be achieved by a procedure involving femoral arteriotomy and, if necessary, graft coupling

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0078] figure 1 The catheter device 1 is shown. The catheter device 1 according to the invention represents a pump. The catheter device 1 has a pump head 3 at the distal end 2 .

[0079] The pump head 3 has a rotor 3 . 2 for pumping the medium in the flow direction 5 , the rotor 3 . 2 being connected to the drive shaft 4 . The flow direction 5 is the direction from the distal end 2 to the proximal end 6 . The motor 7 is located at the proximal end 6 away from the pump head 3 . The drive shaft 4 is surrounded by a catheter body 8 and is indirectly connected to the electric motor 7 by means of a clutch 9 .

[0080] Next, first, the pump head 3 will be described in detail. The pump head 3 comprises a body cover 10 at the distal end, a rotor 3.2 mounted on the drive shaft 4, a pump housing 3.1 and an outlet hose 18.

[0081] The body cap 10 is formed by a ball 10.1 to which a cylindrical portion 10.2 is attached. The main body cover 10 is made of, for example, stainless ste...

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PUM

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Abstract

The invention relates to a catheter device comprising a drive shaft (4) connected to a motor (7) and a rotor (3.2) attached to the distal end region of the drive shaft. The rotor has a frame structure (3.2.1) comprised of a helical limiting frame (3.2.2) and rotor struts (3.2.3) extending radially inwards from the limiting frame. The rotor struts are attached to the drive shaft on the ends thereof distant from the limiting frame. An electrical lining extends between the limiting frame and the drive shaft. The frame structure, made of an elastic material, is configured such that the rotor independently deploys after a forced compression.

Description

technical field [0001] The invention relates to a catheter device which is a micropump. Background technique [0002] Implantable blood pumps are increasingly used in the treatment of patients with serious heart problems. Such blood pumps have hitherto mainly been provided for long-term use. However, blood pumps that are designed to provide short-term support to the heart and that can be inserted by minimally invasive means are also being developed. Here, the medical purpose is to relieve the pressure on the heart and for the recovery of the heart, or to provide a bridge until a heart transplant is possible. The range of applications of such pumps depends on the one hand on the ease of their insertion into the body and on the other hand on the practical technical characteristics that can be obtained, in particular the reliable operating life of the available pump systems. Ideally, it should be possible to insert such a short-term therapeutic blood pump through a percutane...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M1/10A61M1/12A61M60/13A61M60/237A61M60/419A61M60/808A61M60/81A61M60/825
CPCA61M2001/1034A61M2001/1036A61M2001/125A61M1/101A61M60/829A61M60/414A61M60/419A61M60/148A61M60/808A61M60/81A61M60/237A61M60/13A61M60/825
Inventor 约阿希姆·乔治·普费尔托马斯·斯奇米斯罗德罗尔夫·W·冈瑟
Owner AIS AACHEN INNOVATIVE SOLUTIONS