Device for introducing a stent into a hollow organ
First Claim
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1. A device for introducing a stent into a hollow organ, comprising:
- an endorobot including a linear magnet, the endorobot adapted to be freely movable in the hollow organ, wherein a stent, uncoupleable from the outside, is secured to the endorobot in a folded-down state and, at a site of use, is adapted to be opened so as to bear firmly on a wall of the hollow organ;
a magnet system which covers an area of treatment of a patient and generates a 3D gradient field for remote-controlled movement and orientation of the endorobot; and
a coupling mechanism within the endorobot, the coupling mechanism being configured to release the stent secured to the endorobot, wherein the coupling mechanism includes a coupling magnet and a piezo-stack, the coupling mechanism being connected to a hook configured to hold the stent and the coupling mechanism is configured to release the stent upon receipt of a current pulse acting on the piezo-stack.
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Abstract
A device is for introducing a stent into a hollow organ, in particular into the gastrointestinal tract of the body of a patient. The device includes a magnet system which covers the area of treatment of the patient and generates a 3D gradient field for remote-controlled movement and orientation of an endorobot. The endorobot is provided with a linear magnet and is freely movable in the hollow organ. Further, the stent, which can be uncoupled from the outside, is secured to the endorobot in a folded-down state so that it can be brought to the site of use and can there be opened out so as to bear firmly on the wall of the hollow organ.
69 Citations
27 Claims
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1. A device for introducing a stent into a hollow organ, comprising:
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an endorobot including a linear magnet, the endorobot adapted to be freely movable in the hollow organ, wherein a stent, uncoupleable from the outside, is secured to the endorobot in a folded-down state and, at a site of use, is adapted to be opened so as to bear firmly on a wall of the hollow organ; a magnet system which covers an area of treatment of a patient and generates a 3D gradient field for remote-controlled movement and orientation of the endorobot; and a coupling mechanism within the endorobot, the coupling mechanism being configured to release the stent secured to the endorobot, wherein the coupling mechanism includes a coupling magnet and a piezo-stack, the coupling mechanism being connected to a hook configured to hold the stent and the coupling mechanism is configured to release the stent upon receipt of a current pulse acting on the piezo-stack. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A device for introducing a stent into a hollow organ, comprising:
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an endorobot including a linear magnet and adapted to be movable in the hollow organ, wherein a stent, uncoupleable from the outside, is adapted to be secured to the endorobot in a folded-down state and is adapted to be opened so as to bear firmly on a wall of the hollow organ; a magnet system, adapted to at least partially cover an area of treatment of a patient and adapted to generate a field for remote-controlled movement and orientation of the endorobot; and a coupling mechanism within the endorobot, the coupling mechanism being configured to release the stent secured to the endorobot, wherein the coupling mechanism includes a coupling magnet and a piezo-stack, the coupling mechanism being connected to a hook configured to hold the stent and the coupling mechanism is configured to release the stent upon receipt of a current pulse acting on the piezo-stack. - View Dependent Claims (27)
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Specification