Light-based method for the endovascular treatment of pathologically altered blood vessels
First Claim
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1. A blood vessel treatment device, comprising:
- a light applicator; and
a catheter, comprising a sheath, via which the light applicator is inserted into and guided within a blood vessel, wherein the sheath is flexible and non-expandable in the radial direction along an entire length of the sheath, wherein the catheter is open at a proximal end of the catheter, and wherein the catheter is closed at a distal portion of the catheter; and
wherein the catheter and the light applicator are arranged and adapted such that, at any time during use, the light applicator does not make intraluminal contact with any vessel wall and the light applicator is capable of delivering light energy through a sheath of the catheter so as to emit light energy and cause damage to a vessel wall of the blood vessel, the damage resulting in a subsequent decrease in a diameter of the blood vessel,during use, the light applicator is movable within the catheter in consecutive segments or at a constant velocity of 1-5 mm/s, andduring use, the light applicator may be placed repeatedly at the same position within the vessel without moving the catheter.
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Abstract
A light-based method of endovascular treatment, in particular, of pathologically altered blood vessels. Provided are a Method of Endovascular Light Treatment and a corresponding Endovascular Light Application Device.
81 Citations
16 Claims
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1. A blood vessel treatment device, comprising:
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a light applicator; and a catheter, comprising a sheath, via which the light applicator is inserted into and guided within a blood vessel, wherein the sheath is flexible and non-expandable in the radial direction along an entire length of the sheath, wherein the catheter is open at a proximal end of the catheter, and wherein the catheter is closed at a distal portion of the catheter; and wherein the catheter and the light applicator are arranged and adapted such that, at any time during use, the light applicator does not make intraluminal contact with any vessel wall and the light applicator is capable of delivering light energy through a sheath of the catheter so as to emit light energy and cause damage to a vessel wall of the blood vessel, the damage resulting in a subsequent decrease in a diameter of the blood vessel, during use, the light applicator is movable within the catheter in consecutive segments or at a constant velocity of 1-5 mm/s, and during use, the light applicator may be placed repeatedly at the same position within the vessel without moving the catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A kit, comprising:
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a light applicator; a catheter via which the light applicator is inserted into and guided within a blood vessel; and an access needle; wherein the catheter and the light applicator are arranged and adapted such that, at any time during use, the light applicator does not make intraluminal contact with any vessel wall and the light applicator is capable of delivering light energy through the catheter to emit light energy and cause damage to a vessel wall of the blood vessel, and a sheath of the catheter is flexible and non-expandable in the radial direction along an entire length of the sheath that is at least partially optically transmissible to emit light energy from the light applicator, wherein the catheter is open at a proximal end of the catheter, and wherein the catheter is closed at a distal portion of the catheter. - View Dependent Claims (15)
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16. A blood vessel treatment device, comprising:
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a light applicator; and a catheter via which the light applicator is inserted into and guided within a blood vessel, wherein the catheter and light applicator are arranged and adapted such that, at any time during use, the light applicator does not make intraluminal contact with any vessel wall and the light applicator is capable of delivering light energy through a sheath of the catheter so as to emit light energy and cause damage to a vessel wall of the blood vessel, the damage resulting in a subsequent decrease in a diameter of the blood vessel, and the sheath of the catheter is flexible and non-expandable in the radial direction along an entire length of the sheath that is at least partially optically transmissible to emit light energy from the light applicator, wherein the catheter is open at a proximal end of the catheter, and wherein the catheter is closed at a distal portion of the catheter.
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Specification